./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product28.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 25a137cac87a0e16e274f725e7bbd21e6c99dd9079b93c306fff086ae4fee1e1 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 02:54:48,326 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 02:54:48,401 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 02:54:48,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 02:54:48,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 02:54:48,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 02:54:48,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 02:54:48,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 02:54:48,444 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 02:54:48,447 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 02:54:48,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 02:54:48,448 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 02:54:48,448 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 02:54:48,449 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 02:54:48,449 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 02:54:48,449 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 02:54:48,449 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 02:54:48,449 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 02:54:48,450 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 02:54:48,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 02:54:48,452 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 02:54:48,452 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 02:54:48,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 02:54:48,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 02:54:48,453 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 02:54:48,453 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 02:54:48,453 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 02:54:48,454 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 02:54:48,454 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 02:54:48,454 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 02:54:48,454 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 02:54:48,455 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 02:54:48,455 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:54:48,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 02:54:48,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 02:54:48,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 02:54:48,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 02:54:48,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 02:54:48,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 02:54:48,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 02:54:48,458 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 02:54:48,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 02:54:48,458 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25a137cac87a0e16e274f725e7bbd21e6c99dd9079b93c306fff086ae4fee1e1 [2024-10-14 02:54:48,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 02:54:48,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 02:54:48,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 02:54:48,760 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 02:54:48,761 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 02:54:48,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product28.cil.c [2024-10-14 02:54:50,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 02:54:50,492 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 02:54:50,493 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product28.cil.c [2024-10-14 02:54:50,520 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc48ff2e8/74e841c3d70f41e1b601abc7a968af02/FLAG3e94c0ffa [2024-10-14 02:54:50,777 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc48ff2e8/74e841c3d70f41e1b601abc7a968af02 [2024-10-14 02:54:50,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 02:54:50,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 02:54:50,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 02:54:50,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 02:54:50,789 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 02:54:50,789 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:54:50" (1/1) ... [2024-10-14 02:54:50,790 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ee7b99c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:50, skipping insertion in model container [2024-10-14 02:54:50,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:54:50" (1/1) ... [2024-10-14 02:54:50,862 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 02:54:51,449 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product28.cil.c[51091,51104] [2024-10-14 02:54:51,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:54:51,536 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 02:54:51,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-10-14 02:54:51,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1128] [2024-10-14 02:54:51,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1494] [2024-10-14 02:54:51,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1512] [2024-10-14 02:54:51,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [1561] [2024-10-14 02:54:51,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1592] [2024-10-14 02:54:51,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1739] [2024-10-14 02:54:51,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2019] [2024-10-14 02:54:51,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2232] [2024-10-14 02:54:51,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2241] [2024-10-14 02:54:51,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2643] [2024-10-14 02:54:51,628 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product28.cil.c[51091,51104] [2024-10-14 02:54:51,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 02:54:51,682 INFO L204 MainTranslator]: Completed translation [2024-10-14 02:54:51,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51 WrapperNode [2024-10-14 02:54:51,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 02:54:51,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 02:54:51,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 02:54:51,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 02:54:51,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (1/1) ... [2024-10-14 02:54:51,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (1/1) ... [2024-10-14 02:54:51,787 INFO L138 Inliner]: procedures = 128, calls = 196, calls flagged for inlining = 55, calls inlined = 45, statements flattened = 859 [2024-10-14 02:54:51,788 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 02:54:51,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 02:54:51,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 02:54:51,789 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 02:54:51,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (1/1) ... [2024-10-14 02:54:51,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (1/1) ... [2024-10-14 02:54:51,810 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (1/1) ... [2024-10-14 02:54:51,837 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-14 02:54:51,840 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (1/1) ... [2024-10-14 02:54:51,840 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (1/1) ... [2024-10-14 02:54:51,857 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (1/1) ... [2024-10-14 02:54:51,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (1/1) ... [2024-10-14 02:54:51,884 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (1/1) ... [2024-10-14 02:54:51,892 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (1/1) ... [2024-10-14 02:54:51,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 02:54:51,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 02:54:51,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 02:54:51,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 02:54:51,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (1/1) ... [2024-10-14 02:54:51,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 02:54:51,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:54:51,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 02:54:51,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 02:54:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-10-14 02:54:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-10-14 02:54:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-14 02:54:52,007 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-14 02:54:52,007 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-14 02:54:52,008 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-14 02:54:52,008 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-14 02:54:52,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-14 02:54:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-14 02:54:52,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-14 02:54:52,009 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-14 02:54:52,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-14 02:54:52,010 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-14 02:54:52,010 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-14 02:54:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-14 02:54:52,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-14 02:54:52,011 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-14 02:54:52,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-14 02:54:52,012 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-14 02:54:52,013 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-14 02:54:52,013 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-14 02:54:52,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-14 02:54:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-14 02:54:52,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-14 02:54:52,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 02:54:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-14 02:54:52,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-14 02:54:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-14 02:54:52,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-14 02:54:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-14 02:54:52,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-14 02:54:52,015 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-14 02:54:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-14 02:54:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-14 02:54:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-14 02:54:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-14 02:54:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-14 02:54:52,016 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-14 02:54:52,016 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-14 02:54:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-14 02:54:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-14 02:54:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-14 02:54:52,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-14 02:54:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 02:54:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 02:54:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 02:54:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 02:54:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-14 02:54:52,018 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-14 02:54:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 02:54:52,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 02:54:52,208 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 02:54:52,210 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 02:54:52,998 INFO L? ?]: Removed 398 outVars from TransFormulas that were not future-live. [2024-10-14 02:54:52,998 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 02:54:53,047 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 02:54:53,047 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 02:54:53,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:54:53 BoogieIcfgContainer [2024-10-14 02:54:53,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 02:54:53,050 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 02:54:53,050 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 02:54:53,053 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 02:54:53,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:54:50" (1/3) ... [2024-10-14 02:54:53,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a37889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:54:53, skipping insertion in model container [2024-10-14 02:54:53,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:54:51" (2/3) ... [2024-10-14 02:54:53,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a37889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:54:53, skipping insertion in model container [2024-10-14 02:54:53,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:54:53" (3/3) ... [2024-10-14 02:54:53,055 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product28.cil.c [2024-10-14 02:54:53,075 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 02:54:53,075 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 02:54:53,156 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 02:54:53,164 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;@1954a1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 02:54:53,164 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 02:54:53,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 303 states, 229 states have (on average 1.5764192139737991) internal successors, (361), 233 states have internal predecessors, (361), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-14 02:54:53,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-14 02:54:53,191 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:54:53,192 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:54:53,193 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:54:53,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:54:53,197 INFO L85 PathProgramCache]: Analyzing trace with hash 892407017, now seen corresponding path program 1 times [2024-10-14 02:54:53,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:54:53,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051208543] [2024-10-14 02:54:53,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:54:53,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:54:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:53,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:54:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:53,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:54:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:53,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:54:53,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:53,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:54:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:53,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:54:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:53,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:54:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:54,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 02:54:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:54,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 02:54:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:54,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 02:54:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:54,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:54:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:54,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:54:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:54,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:54:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 02:54:54,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:54:54,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051208543] [2024-10-14 02:54:54,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051208543] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:54:54,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273830649] [2024-10-14 02:54:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:54:54,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:54:54,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:54:54,040 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:54:54,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 02:54:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:54,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 02:54:54,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:54:54,390 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:54:54,390 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:54:54,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273830649] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:54:54,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:54:54,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 8 [2024-10-14 02:54:54,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946212775] [2024-10-14 02:54:54,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:54:54,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 02:54:54,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:54:54,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 02:54:54,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 02:54:54,424 INFO L87 Difference]: Start difference. First operand has 303 states, 229 states have (on average 1.5764192139737991) internal successors, (361), 233 states have internal predecessors, (361), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:54:54,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:54:54,497 INFO L93 Difference]: Finished difference Result 465 states and 692 transitions. [2024-10-14 02:54:54,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 02:54:54,504 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2024-10-14 02:54:54,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:54:54,527 INFO L225 Difference]: With dead ends: 465 [2024-10-14 02:54:54,527 INFO L226 Difference]: Without dead ends: 300 [2024-10-14 02:54:54,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 02:54:54,537 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:54:54,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 447 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:54:54,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-10-14 02:54:54,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2024-10-14 02:54:54,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 227 states have (on average 1.5594713656387664) internal successors, (354), 230 states have internal predecessors, (354), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-10-14 02:54:54,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 453 transitions. [2024-10-14 02:54:54,614 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 453 transitions. Word has length 92 [2024-10-14 02:54:54,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:54:54,616 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 453 transitions. [2024-10-14 02:54:54,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:54:54,617 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 453 transitions. [2024-10-14 02:54:54,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-14 02:54:54,625 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:54:54,625 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:54:54,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 02:54:54,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-14 02:54:54,827 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:54:54,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:54:54,827 INFO L85 PathProgramCache]: Analyzing trace with hash -476969593, now seen corresponding path program 1 times [2024-10-14 02:54:54,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:54:54,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51743299] [2024-10-14 02:54:54,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:54:54,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:54:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:54:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:54:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:54:55,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:54:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:54:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:54:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 02:54:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 02:54:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:54:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:54:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 02:54:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:54:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,189 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-14 02:54:55,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:54:55,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51743299] [2024-10-14 02:54:55,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51743299] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:54:55,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995672786] [2024-10-14 02:54:55,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:54:55,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:54:55,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:54:55,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:54:55,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 02:54:55,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:55,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 02:54:55,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:54:55,520 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:54:55,520 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:54:55,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995672786] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:54:55,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:54:55,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-14 02:54:55,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552332222] [2024-10-14 02:54:55,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:54:55,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 02:54:55,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:54:55,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 02:54:55,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:54:55,525 INFO L87 Difference]: Start difference. First operand 300 states and 453 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:54:55,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:54:55,593 INFO L93 Difference]: Finished difference Result 461 states and 679 transitions. [2024-10-14 02:54:55,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 02:54:55,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2024-10-14 02:54:55,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:54:55,600 INFO L225 Difference]: With dead ends: 461 [2024-10-14 02:54:55,601 INFO L226 Difference]: Without dead ends: 302 [2024-10-14 02:54:55,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:54:55,606 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 0 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:54:55,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 887 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:54:55,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2024-10-14 02:54:55,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2024-10-14 02:54:55,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 229 states have (on average 1.554585152838428) internal successors, (356), 232 states have internal predecessors, (356), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-10-14 02:54:55,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 455 transitions. [2024-10-14 02:54:55,638 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 455 transitions. Word has length 93 [2024-10-14 02:54:55,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:54:55,639 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 455 transitions. [2024-10-14 02:54:55,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:54:55,639 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 455 transitions. [2024-10-14 02:54:55,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-14 02:54:55,642 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:54:55,643 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:54:55,663 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 02:54:55,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-14 02:54:55,844 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:54:55,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:54:55,845 INFO L85 PathProgramCache]: Analyzing trace with hash 50763275, now seen corresponding path program 1 times [2024-10-14 02:54:55,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:54:55,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673153113] [2024-10-14 02:54:55,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:54:55,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:54:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:54:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:54:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:54:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:54:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:54:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:54:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 02:54:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 02:54:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:54:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:54:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:54:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:54:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:54:56,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:54:56,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673153113] [2024-10-14 02:54:56,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673153113] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:54:56,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502182316] [2024-10-14 02:54:56,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:54:56,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:54:56,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:54:56,095 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:54:56,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 02:54:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,362 INFO L255 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:54:56,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:54:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 02:54:56,393 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:54:56,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502182316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:54:56,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:54:56,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-14 02:54:56,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467831413] [2024-10-14 02:54:56,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:54:56,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 02:54:56,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:54:56,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 02:54:56,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:54:56,399 INFO L87 Difference]: Start difference. First operand 302 states and 455 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:54:56,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:54:56,460 INFO L93 Difference]: Finished difference Result 630 states and 962 transitions. [2024-10-14 02:54:56,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 02:54:56,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 98 [2024-10-14 02:54:56,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:54:56,465 INFO L225 Difference]: With dead ends: 630 [2024-10-14 02:54:56,466 INFO L226 Difference]: Without dead ends: 350 [2024-10-14 02:54:56,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 02:54:56,469 INFO L432 NwaCegarLoop]: 451 mSDtfsCounter, 95 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 02:54:56,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 851 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 02:54:56,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-10-14 02:54:56,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 345. [2024-10-14 02:54:56,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 261 states have (on average 1.5670498084291187) internal successors, (409), 264 states have internal predecessors, (409), 61 states have call successors, (61), 22 states have call predecessors, (61), 22 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-10-14 02:54:56,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 530 transitions. [2024-10-14 02:54:56,495 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 530 transitions. Word has length 98 [2024-10-14 02:54:56,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:54:56,495 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 530 transitions. [2024-10-14 02:54:56,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:54:56,495 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 530 transitions. [2024-10-14 02:54:56,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-10-14 02:54:56,497 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:54:56,498 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:54:56,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 02:54:56,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:54:56,699 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:54:56,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:54:56,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1309676227, now seen corresponding path program 1 times [2024-10-14 02:54:56,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:54:56,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768958186] [2024-10-14 02:54:56,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:54:56,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:54:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:54:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:54:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:54:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 02:54:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 02:54:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 02:54:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 02:54:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 02:54:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:54:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:54:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:54:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:54:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:56,956 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:54:56,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:54:56,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768958186] [2024-10-14 02:54:56,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768958186] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:54:56,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350829505] [2024-10-14 02:54:56,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:54:56,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:54:56,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:54:56,960 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:54:56,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 02:54:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 02:54:57,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:54:57,330 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 02:54:57,332 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:54:57,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350829505] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:54:57,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:54:57,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-10-14 02:54:57,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839548387] [2024-10-14 02:54:57,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:54:57,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 02:54:57,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:54:57,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 02:54:57,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-14 02:54:57,335 INFO L87 Difference]: Start difference. First operand 345 states and 530 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:54:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:54:57,429 INFO L93 Difference]: Finished difference Result 685 states and 1054 transitions. [2024-10-14 02:54:57,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 02:54:57,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 99 [2024-10-14 02:54:57,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:54:57,434 INFO L225 Difference]: With dead ends: 685 [2024-10-14 02:54:57,435 INFO L226 Difference]: Without dead ends: 347 [2024-10-14 02:54:57,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-14 02:54:57,439 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 2 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:54:57,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1733 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:54:57,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-10-14 02:54:57,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2024-10-14 02:54:57,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 262 states have (on average 1.5648854961832062) internal successors, (410), 266 states have internal predecessors, (410), 61 states have call successors, (61), 22 states have call predecessors, (61), 23 states have return successors, (62), 60 states have call predecessors, (62), 60 states have call successors, (62) [2024-10-14 02:54:57,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 533 transitions. [2024-10-14 02:54:57,467 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 533 transitions. Word has length 99 [2024-10-14 02:54:57,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:54:57,468 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 533 transitions. [2024-10-14 02:54:57,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:54:57,468 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 533 transitions. [2024-10-14 02:54:57,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-10-14 02:54:57,471 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:54:57,471 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:54:57,489 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 02:54:57,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:54:57,673 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:54:57,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:54:57,674 INFO L85 PathProgramCache]: Analyzing trace with hash 1566415039, now seen corresponding path program 1 times [2024-10-14 02:54:57,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:54:57,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330027415] [2024-10-14 02:54:57,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:54:57,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:54:57,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:54:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:54:57,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:54:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:54:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 02:54:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 02:54:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 02:54:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 02:54:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:54:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:54:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:54:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:54:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:57,904 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 02:54:57,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:54:57,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330027415] [2024-10-14 02:54:57,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330027415] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:54:57,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766391510] [2024-10-14 02:54:57,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:54:57,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:54:57,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:54:57,907 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:54:57,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 02:54:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 02:54:58,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:54:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-14 02:54:58,218 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 02:54:58,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766391510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:54:58,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 02:54:58,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2024-10-14 02:54:58,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211065651] [2024-10-14 02:54:58,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:54:58,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 02:54:58,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:54:58,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 02:54:58,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-14 02:54:58,220 INFO L87 Difference]: Start difference. First operand 347 states and 533 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:54:58,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:54:58,320 INFO L93 Difference]: Finished difference Result 687 states and 1059 transitions. [2024-10-14 02:54:58,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 02:54:58,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 100 [2024-10-14 02:54:58,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:54:58,323 INFO L225 Difference]: With dead ends: 687 [2024-10-14 02:54:58,323 INFO L226 Difference]: Without dead ends: 349 [2024-10-14 02:54:58,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-10-14 02:54:58,325 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 2 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:54:58,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1719 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 02:54:58,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2024-10-14 02:54:58,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2024-10-14 02:54:58,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 263 states have (on average 1.5627376425855513) internal successors, (411), 268 states have internal predecessors, (411), 61 states have call successors, (61), 22 states have call predecessors, (61), 24 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-10-14 02:54:58,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 539 transitions. [2024-10-14 02:54:58,340 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 539 transitions. Word has length 100 [2024-10-14 02:54:58,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:54:58,341 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 539 transitions. [2024-10-14 02:54:58,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:54:58,341 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 539 transitions. [2024-10-14 02:54:58,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 02:54:58,343 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:54:58,343 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 02:54:58,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 02:54:58,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:54:58,544 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:54:58,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:54:58,545 INFO L85 PathProgramCache]: Analyzing trace with hash -489358203, now seen corresponding path program 1 times [2024-10-14 02:54:58,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:54:58,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587293632] [2024-10-14 02:54:58,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:54:58,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:54:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:54:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:54:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:54:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:54:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:54:58,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 02:54:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 02:54:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:54:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:54:58,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:54:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:54:58,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:54:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:54:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:54:58,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:54:58,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587293632] [2024-10-14 02:54:58,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587293632] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:54:58,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:54:58,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 02:54:58,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620645324] [2024-10-14 02:54:58,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:54:58,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 02:54:58,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:54:58,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 02:54:58,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 02:54:58,728 INFO L87 Difference]: Start difference. First operand 349 states and 539 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:55:00,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:00,158 INFO L93 Difference]: Finished difference Result 741 states and 1152 transitions. [2024-10-14 02:55:00,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:55:00,158 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 101 [2024-10-14 02:55:00,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:00,165 INFO L225 Difference]: With dead ends: 741 [2024-10-14 02:55:00,165 INFO L226 Difference]: Without dead ends: 411 [2024-10-14 02:55:00,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-10-14 02:55:00,166 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 737 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:00,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 817 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 02:55:00,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-10-14 02:55:00,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 349. [2024-10-14 02:55:00,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 263 states have (on average 1.5627376425855513) internal successors, (411), 268 states have internal predecessors, (411), 61 states have call successors, (61), 22 states have call predecessors, (61), 24 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2024-10-14 02:55:00,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 538 transitions. [2024-10-14 02:55:00,205 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 538 transitions. Word has length 101 [2024-10-14 02:55:00,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:00,205 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 538 transitions. [2024-10-14 02:55:00,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:55:00,206 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 538 transitions. [2024-10-14 02:55:00,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 02:55:00,207 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:00,208 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 02:55:00,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 02:55:00,208 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:00,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:00,209 INFO L85 PathProgramCache]: Analyzing trace with hash 742638111, now seen corresponding path program 2 times [2024-10-14 02:55:00,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:00,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499182507] [2024-10-14 02:55:00,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:00,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 02:55:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 02:55:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:55:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:55:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:55:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:55:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:55:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:00,386 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 02:55:00,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:00,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499182507] [2024-10-14 02:55:00,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499182507] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:00,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:00,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 02:55:00,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290488146] [2024-10-14 02:55:00,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:00,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 02:55:00,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:00,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 02:55:00,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 02:55:00,388 INFO L87 Difference]: Start difference. First operand 349 states and 538 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:55:01,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:01,695 INFO L93 Difference]: Finished difference Result 743 states and 1155 transitions. [2024-10-14 02:55:01,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 02:55:01,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) Word has length 102 [2024-10-14 02:55:01,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:01,699 INFO L225 Difference]: With dead ends: 743 [2024-10-14 02:55:01,699 INFO L226 Difference]: Without dead ends: 413 [2024-10-14 02:55:01,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-10-14 02:55:01,701 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 734 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 2119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:01,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 817 Invalid, 2119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 02:55:01,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-10-14 02:55:01,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 351. [2024-10-14 02:55:01,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 264 states have (on average 1.5606060606060606) internal successors, (412), 270 states have internal predecessors, (412), 61 states have call successors, (61), 22 states have call predecessors, (61), 25 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-10-14 02:55:01,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 541 transitions. [2024-10-14 02:55:01,727 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 541 transitions. Word has length 102 [2024-10-14 02:55:01,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:01,727 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 541 transitions. [2024-10-14 02:55:01,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 02:55:01,728 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 541 transitions. [2024-10-14 02:55:01,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-14 02:55:01,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:01,730 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 02:55:01,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 02:55:01,730 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:01,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:01,730 INFO L85 PathProgramCache]: Analyzing trace with hash -2138558454, now seen corresponding path program 1 times [2024-10-14 02:55:01,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:01,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888871168] [2024-10-14 02:55:01,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:01,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:01,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:01,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 02:55:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 02:55:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:55:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:55:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:55:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:55:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:01,928 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 02:55:01,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:01,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888871168] [2024-10-14 02:55:01,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888871168] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:01,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:01,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 02:55:01,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878588476] [2024-10-14 02:55:01,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:01,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 02:55:01,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:01,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 02:55:01,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 02:55:01,930 INFO L87 Difference]: Start difference. First operand 351 states and 541 transitions. Second operand has 11 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-14 02:55:03,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:03,793 INFO L93 Difference]: Finished difference Result 741 states and 1150 transitions. [2024-10-14 02:55:03,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 02:55:03,793 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 103 [2024-10-14 02:55:03,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:03,796 INFO L225 Difference]: With dead ends: 741 [2024-10-14 02:55:03,797 INFO L226 Difference]: Without dead ends: 413 [2024-10-14 02:55:03,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-10-14 02:55:03,799 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 737 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 3195 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 1174 SdHoareTripleChecker+Invalid, 3429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 3195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:03,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 1174 Invalid, 3429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 3195 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 02:55:03,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-10-14 02:55:03,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 351. [2024-10-14 02:55:03,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 264 states have (on average 1.5606060606060606) internal successors, (412), 270 states have internal predecessors, (412), 61 states have call successors, (61), 22 states have call predecessors, (61), 25 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2024-10-14 02:55:03,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 540 transitions. [2024-10-14 02:55:03,826 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 540 transitions. Word has length 103 [2024-10-14 02:55:03,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:03,827 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 540 transitions. [2024-10-14 02:55:03,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-14 02:55:03,827 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 540 transitions. [2024-10-14 02:55:03,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-14 02:55:03,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:03,829 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 02:55:03,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 02:55:03,830 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:03,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:03,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1449544136, now seen corresponding path program 2 times [2024-10-14 02:55:03,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:03,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556893897] [2024-10-14 02:55:03,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:03,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:03,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:03,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:03,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:03,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:03,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:03,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:04,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:04,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 02:55:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:04,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 02:55:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:04,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:55:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:04,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 02:55:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:04,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:55:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:04,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:55:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:04,085 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-14 02:55:04,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:04,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556893897] [2024-10-14 02:55:04,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556893897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:04,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:04,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-14 02:55:04,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924081797] [2024-10-14 02:55:04,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:04,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 02:55:04,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:04,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 02:55:04,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-10-14 02:55:04,088 INFO L87 Difference]: Start difference. First operand 351 states and 540 transitions. Second operand has 11 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-14 02:55:05,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:05,962 INFO L93 Difference]: Finished difference Result 743 states and 1156 transitions. [2024-10-14 02:55:05,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 02:55:05,963 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 104 [2024-10-14 02:55:05,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:05,967 INFO L225 Difference]: With dead ends: 743 [2024-10-14 02:55:05,968 INFO L226 Difference]: Without dead ends: 415 [2024-10-14 02:55:05,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2024-10-14 02:55:05,970 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 734 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 3222 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 3454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 3222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:05,972 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [735 Valid, 1175 Invalid, 3454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 3222 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 02:55:05,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-10-14 02:55:05,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 353. [2024-10-14 02:55:05,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 265 states have (on average 1.558490566037736) internal successors, (413), 272 states have internal predecessors, (413), 61 states have call successors, (61), 22 states have call predecessors, (61), 26 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2024-10-14 02:55:06,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 546 transitions. [2024-10-14 02:55:06,001 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 546 transitions. Word has length 104 [2024-10-14 02:55:06,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:06,001 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 546 transitions. [2024-10-14 02:55:06,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.0) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-14 02:55:06,001 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 546 transitions. [2024-10-14 02:55:06,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-14 02:55:06,004 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:06,004 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 02:55:06,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 02:55:06,005 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:06,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:06,024 INFO L85 PathProgramCache]: Analyzing trace with hash 662064591, now seen corresponding path program 1 times [2024-10-14 02:55:06,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:06,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703620806] [2024-10-14 02:55:06,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:06,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:06,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 02:55:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 02:55:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:55:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:55:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:55:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:55:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,167 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:06,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:06,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703620806] [2024-10-14 02:55:06,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703620806] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 02:55:06,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561125836] [2024-10-14 02:55:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:06,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:55:06,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 02:55:06,170 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 02:55:06,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 02:55:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:06,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 02:55:06,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 02:55:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:06,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 02:55:06,553 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:06,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561125836] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 02:55:06,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 02:55:06,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 10 [2024-10-14 02:55:06,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86915460] [2024-10-14 02:55:06,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 02:55:06,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 02:55:06,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:06,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 02:55:06,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:06,560 INFO L87 Difference]: Start difference. First operand 353 states and 546 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 02:55:08,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:08,169 INFO L93 Difference]: Finished difference Result 884 states and 1441 transitions. [2024-10-14 02:55:08,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 02:55:08,170 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 105 [2024-10-14 02:55:08,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:08,175 INFO L225 Difference]: With dead ends: 884 [2024-10-14 02:55:08,175 INFO L226 Difference]: Without dead ends: 725 [2024-10-14 02:55:08,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-14 02:55:08,177 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 1012 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:08,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 1118 Invalid, 2756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 02:55:08,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-10-14 02:55:08,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 648. [2024-10-14 02:55:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 496 states have (on average 1.6189516129032258) internal successors, (803), 503 states have internal predecessors, (803), 125 states have call successors, (125), 22 states have call predecessors, (125), 26 states have return successors, (146), 124 states have call predecessors, (146), 124 states have call successors, (146) [2024-10-14 02:55:08,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1074 transitions. [2024-10-14 02:55:08,223 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1074 transitions. Word has length 105 [2024-10-14 02:55:08,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:08,224 INFO L471 AbstractCegarLoop]: Abstraction has 648 states and 1074 transitions. [2024-10-14 02:55:08,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 7 states have internal predecessors, (97), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-10-14 02:55:08,224 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1074 transitions. [2024-10-14 02:55:08,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-14 02:55:08,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:08,229 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:08,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 02:55:08,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 02:55:08,430 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:08,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:08,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1645733428, now seen corresponding path program 1 times [2024-10-14 02:55:08,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:08,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057659552] [2024-10-14 02:55:08,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:08,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:08,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:08,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 02:55:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:55:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:55:08,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:55:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 02:55:08,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:55:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:08,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:08,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057659552] [2024-10-14 02:55:08,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057659552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:08,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:08,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 02:55:08,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686422841] [2024-10-14 02:55:08,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:08,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 02:55:08,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:08,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 02:55:08,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 02:55:08,543 INFO L87 Difference]: Start difference. First operand 648 states and 1074 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:09,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:09,560 INFO L93 Difference]: Finished difference Result 1595 states and 2710 transitions. [2024-10-14 02:55:09,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 02:55:09,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-10-14 02:55:09,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:09,569 INFO L225 Difference]: With dead ends: 1595 [2024-10-14 02:55:09,569 INFO L226 Difference]: Without dead ends: 1007 [2024-10-14 02:55:09,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:09,573 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 826 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:09,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 593 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1033 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 02:55:09,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2024-10-14 02:55:09,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 940. [2024-10-14 02:55:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 940 states, 724 states have (on average 1.6298342541436464) internal successors, (1180), 731 states have internal predecessors, (1180), 189 states have call successors, (189), 22 states have call predecessors, (189), 26 states have return successors, (220), 188 states have call predecessors, (220), 188 states have call successors, (220) [2024-10-14 02:55:09,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1589 transitions. [2024-10-14 02:55:09,660 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1589 transitions. Word has length 111 [2024-10-14 02:55:09,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:09,661 INFO L471 AbstractCegarLoop]: Abstraction has 940 states and 1589 transitions. [2024-10-14 02:55:09,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:09,661 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1589 transitions. [2024-10-14 02:55:09,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-14 02:55:09,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:09,666 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:09,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 02:55:09,667 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:09,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:09,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1664664127, now seen corresponding path program 1 times [2024-10-14 02:55:09,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:09,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595936205] [2024-10-14 02:55:09,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:09,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 02:55:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 02:55:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:55:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:55:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 02:55:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 02:55:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:09,763 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:09,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:09,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595936205] [2024-10-14 02:55:09,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595936205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:09,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:09,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 02:55:09,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788898412] [2024-10-14 02:55:09,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:09,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 02:55:09,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:09,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 02:55:09,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 02:55:09,765 INFO L87 Difference]: Start difference. First operand 940 states and 1589 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:10,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:10,775 INFO L93 Difference]: Finished difference Result 2292 states and 3937 transitions. [2024-10-14 02:55:10,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 02:55:10,776 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2024-10-14 02:55:10,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:10,785 INFO L225 Difference]: With dead ends: 2292 [2024-10-14 02:55:10,785 INFO L226 Difference]: Without dead ends: 1462 [2024-10-14 02:55:10,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:10,790 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 824 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:10,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 583 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 02:55:10,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2024-10-14 02:55:10,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1395. [2024-10-14 02:55:10,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1084 states have (on average 1.636531365313653) internal successors, (1774), 1091 states have internal predecessors, (1774), 284 states have call successors, (284), 22 states have call predecessors, (284), 26 states have return successors, (315), 283 states have call predecessors, (315), 283 states have call successors, (315) [2024-10-14 02:55:10,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 2373 transitions. [2024-10-14 02:55:10,878 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 2373 transitions. Word has length 112 [2024-10-14 02:55:10,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:10,878 INFO L471 AbstractCegarLoop]: Abstraction has 1395 states and 2373 transitions. [2024-10-14 02:55:10,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:10,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 2373 transitions. [2024-10-14 02:55:10,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-10-14 02:55:10,887 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:10,887 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:10,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 02:55:10,887 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:10,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:10,888 INFO L85 PathProgramCache]: Analyzing trace with hash 657888782, now seen corresponding path program 1 times [2024-10-14 02:55:10,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:10,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133909482] [2024-10-14 02:55:10,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:10,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:10,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:10,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:10,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:10,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:10,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:10,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:10,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:10,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 02:55:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:10,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 02:55:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:10,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:55:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:10,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:55:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:10,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 02:55:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:10,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:55:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:11,000 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:11,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:11,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133909482] [2024-10-14 02:55:11,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133909482] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:11,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:11,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 02:55:11,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643662584] [2024-10-14 02:55:11,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:11,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 02:55:11,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:11,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 02:55:11,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 02:55:11,002 INFO L87 Difference]: Start difference. First operand 1395 states and 2373 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:11,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:11,871 INFO L93 Difference]: Finished difference Result 3310 states and 5749 transitions. [2024-10-14 02:55:11,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 02:55:11,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-10-14 02:55:11,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:11,885 INFO L225 Difference]: With dead ends: 3310 [2024-10-14 02:55:11,885 INFO L226 Difference]: Without dead ends: 2145 [2024-10-14 02:55:11,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:11,892 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 822 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:11,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 571 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:11,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2024-10-14 02:55:12,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 2078. [2024-10-14 02:55:12,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 1644 states have (on average 1.6423357664233578) internal successors, (2700), 1651 states have internal predecessors, (2700), 407 states have call successors, (407), 22 states have call predecessors, (407), 26 states have return successors, (454), 406 states have call predecessors, (454), 406 states have call successors, (454) [2024-10-14 02:55:12,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 3561 transitions. [2024-10-14 02:55:12,014 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 3561 transitions. Word has length 113 [2024-10-14 02:55:12,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:12,014 INFO L471 AbstractCegarLoop]: Abstraction has 2078 states and 3561 transitions. [2024-10-14 02:55:12,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:12,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 3561 transitions. [2024-10-14 02:55:12,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 02:55:12,024 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:12,024 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:12,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 02:55:12,025 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:12,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:12,025 INFO L85 PathProgramCache]: Analyzing trace with hash 947001024, now seen corresponding path program 1 times [2024-10-14 02:55:12,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:12,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25105754] [2024-10-14 02:55:12,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:12,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:12,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 02:55:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 02:55:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 02:55:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:55:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 02:55:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:55:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:12,119 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:12,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:12,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25105754] [2024-10-14 02:55:12,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25105754] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:12,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:12,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 02:55:12,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373708523] [2024-10-14 02:55:12,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:12,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 02:55:12,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:12,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 02:55:12,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 02:55:12,120 INFO L87 Difference]: Start difference. First operand 2078 states and 3561 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:13,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:13,074 INFO L93 Difference]: Finished difference Result 4880 states and 8554 transitions. [2024-10-14 02:55:13,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 02:55:13,074 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-10-14 02:55:13,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:13,094 INFO L225 Difference]: With dead ends: 4880 [2024-10-14 02:55:13,095 INFO L226 Difference]: Without dead ends: 3229 [2024-10-14 02:55:13,102 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:13,103 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 820 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 1021 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 1021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:13,103 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 570 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 1021 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:13,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2024-10-14 02:55:13,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 3162. [2024-10-14 02:55:13,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3162 states, 2549 states have (on average 1.6461357395056886) internal successors, (4196), 2556 states have internal predecessors, (4196), 586 states have call successors, (586), 22 states have call predecessors, (586), 26 states have return successors, (659), 585 states have call predecessors, (659), 585 states have call successors, (659) [2024-10-14 02:55:13,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3162 states to 3162 states and 5441 transitions. [2024-10-14 02:55:13,281 INFO L78 Accepts]: Start accepts. Automaton has 3162 states and 5441 transitions. Word has length 114 [2024-10-14 02:55:13,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:13,282 INFO L471 AbstractCegarLoop]: Abstraction has 3162 states and 5441 transitions. [2024-10-14 02:55:13,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:13,282 INFO L276 IsEmpty]: Start isEmpty. Operand 3162 states and 5441 transitions. [2024-10-14 02:55:13,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 02:55:13,294 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:13,294 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:13,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 02:55:13,294 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:13,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:13,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1899808874, now seen corresponding path program 1 times [2024-10-14 02:55:13,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:13,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158947588] [2024-10-14 02:55:13,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:13,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:13,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 02:55:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 02:55:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 02:55:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:55:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 02:55:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:55:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:13,395 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:13,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:13,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158947588] [2024-10-14 02:55:13,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158947588] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:13,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:13,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 02:55:13,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281378095] [2024-10-14 02:55:13,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:13,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 02:55:13,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:13,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 02:55:13,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 02:55:13,398 INFO L87 Difference]: Start difference. First operand 3162 states and 5441 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:14,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:14,411 INFO L93 Difference]: Finished difference Result 7711 states and 13566 transitions. [2024-10-14 02:55:14,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 02:55:14,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2024-10-14 02:55:14,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:14,442 INFO L225 Difference]: With dead ends: 7711 [2024-10-14 02:55:14,442 INFO L226 Difference]: Without dead ends: 5199 [2024-10-14 02:55:14,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:14,455 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 818 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:14,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 581 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:14,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2024-10-14 02:55:14,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5132. [2024-10-14 02:55:14,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5132 states, 4143 states have (on average 1.6381848901762008) internal successors, (6787), 4150 states have internal predecessors, (6787), 962 states have call successors, (962), 22 states have call predecessors, (962), 26 states have return successors, (1079), 961 states have call predecessors, (1079), 961 states have call successors, (1079) [2024-10-14 02:55:14,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5132 states to 5132 states and 8828 transitions. [2024-10-14 02:55:14,693 INFO L78 Accepts]: Start accepts. Automaton has 5132 states and 8828 transitions. Word has length 115 [2024-10-14 02:55:14,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:14,694 INFO L471 AbstractCegarLoop]: Abstraction has 5132 states and 8828 transitions. [2024-10-14 02:55:14,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:14,695 INFO L276 IsEmpty]: Start isEmpty. Operand 5132 states and 8828 transitions. [2024-10-14 02:55:14,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 02:55:14,747 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:14,747 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:14,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 02:55:14,747 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:14,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:14,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2083535972, now seen corresponding path program 1 times [2024-10-14 02:55:14,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:14,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664682086] [2024-10-14 02:55:14,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:14,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 02:55:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 02:55:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 02:55:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 02:55:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 02:55:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 02:55:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:14,850 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:14,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:14,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664682086] [2024-10-14 02:55:14,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664682086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:14,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:14,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 02:55:14,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94130078] [2024-10-14 02:55:14,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:14,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 02:55:14,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:14,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 02:55:14,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 02:55:14,851 INFO L87 Difference]: Start difference. First operand 5132 states and 8828 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:15,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:15,886 INFO L93 Difference]: Finished difference Result 12692 states and 22314 transitions. [2024-10-14 02:55:15,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 02:55:15,893 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-10-14 02:55:15,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:15,954 INFO L225 Difference]: With dead ends: 12692 [2024-10-14 02:55:15,955 INFO L226 Difference]: Without dead ends: 8576 [2024-10-14 02:55:15,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:15,971 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 816 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:15,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 571 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:15,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8576 states. [2024-10-14 02:55:16,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8576 to 8509. [2024-10-14 02:55:16,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8509 states, 6914 states have (on average 1.6358113971651722) internal successors, (11310), 6921 states have internal predecessors, (11310), 1568 states have call successors, (1568), 22 states have call predecessors, (1568), 26 states have return successors, (1763), 1567 states have call predecessors, (1763), 1567 states have call successors, (1763) [2024-10-14 02:55:16,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8509 states to 8509 states and 14641 transitions. [2024-10-14 02:55:16,483 INFO L78 Accepts]: Start accepts. Automaton has 8509 states and 14641 transitions. Word has length 116 [2024-10-14 02:55:16,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:16,483 INFO L471 AbstractCegarLoop]: Abstraction has 8509 states and 14641 transitions. [2024-10-14 02:55:16,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:16,484 INFO L276 IsEmpty]: Start isEmpty. Operand 8509 states and 14641 transitions. [2024-10-14 02:55:16,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-14 02:55:16,508 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:16,508 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:16,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 02:55:16,509 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:16,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:16,509 INFO L85 PathProgramCache]: Analyzing trace with hash -839190900, now seen corresponding path program 1 times [2024-10-14 02:55:16,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:16,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245653119] [2024-10-14 02:55:16,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:16,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 02:55:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 02:55:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 02:55:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 02:55:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 02:55:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 02:55:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:16,622 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:16,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:16,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245653119] [2024-10-14 02:55:16,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245653119] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:16,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:16,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 02:55:16,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088612515] [2024-10-14 02:55:16,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:16,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 02:55:16,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:16,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 02:55:16,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 02:55:16,625 INFO L87 Difference]: Start difference. First operand 8509 states and 14641 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:17,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:17,737 INFO L93 Difference]: Finished difference Result 22044 states and 38713 transitions. [2024-10-14 02:55:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 02:55:17,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 117 [2024-10-14 02:55:17,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:17,805 INFO L225 Difference]: With dead ends: 22044 [2024-10-14 02:55:17,805 INFO L226 Difference]: Without dead ends: 14960 [2024-10-14 02:55:17,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:17,843 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 814 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:17,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 591 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:17,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14960 states. [2024-10-14 02:55:18,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14960 to 14893. [2024-10-14 02:55:18,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14893 states, 12095 states have (on average 1.6260438197602316) internal successors, (19667), 12102 states have internal predecessors, (19667), 2771 states have call successors, (2771), 22 states have call predecessors, (2771), 26 states have return successors, (3110), 2770 states have call predecessors, (3110), 2770 states have call successors, (3110) [2024-10-14 02:55:18,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14893 states to 14893 states and 25548 transitions. [2024-10-14 02:55:18,567 INFO L78 Accepts]: Start accepts. Automaton has 14893 states and 25548 transitions. Word has length 117 [2024-10-14 02:55:18,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:18,567 INFO L471 AbstractCegarLoop]: Abstraction has 14893 states and 25548 transitions. [2024-10-14 02:55:18,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:18,568 INFO L276 IsEmpty]: Start isEmpty. Operand 14893 states and 25548 transitions. [2024-10-14 02:55:18,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-14 02:55:18,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:18,597 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:18,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 02:55:18,597 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:18,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:18,598 INFO L85 PathProgramCache]: Analyzing trace with hash -686369659, now seen corresponding path program 1 times [2024-10-14 02:55:18,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:18,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236423466] [2024-10-14 02:55:18,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:18,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:18,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 02:55:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 02:55:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 02:55:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 02:55:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 02:55:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 02:55:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:18,704 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:18,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:18,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236423466] [2024-10-14 02:55:18,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236423466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:18,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:18,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 02:55:18,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855886863] [2024-10-14 02:55:18,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:18,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 02:55:18,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:18,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 02:55:18,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 02:55:18,706 INFO L87 Difference]: Start difference. First operand 14893 states and 25548 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:20,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:20,151 INFO L93 Difference]: Finished difference Result 39403 states and 69099 transitions. [2024-10-14 02:55:20,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 02:55:20,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2024-10-14 02:55:20,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:20,274 INFO L225 Difference]: With dead ends: 39403 [2024-10-14 02:55:20,274 INFO L226 Difference]: Without dead ends: 26527 [2024-10-14 02:55:20,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:20,330 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 812 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:20,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 572 Invalid, 1300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 02:55:20,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26527 states. [2024-10-14 02:55:21,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26527 to 26460. [2024-10-14 02:55:21,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26460 states, 21623 states have (on average 1.6219765989918142) internal successors, (35072), 21630 states have internal predecessors, (35072), 4810 states have call successors, (4810), 22 states have call predecessors, (4810), 26 states have return successors, (5423), 4809 states have call predecessors, (5423), 4809 states have call successors, (5423) [2024-10-14 02:55:21,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26460 states to 26460 states and 45305 transitions. [2024-10-14 02:55:21,495 INFO L78 Accepts]: Start accepts. Automaton has 26460 states and 45305 transitions. Word has length 118 [2024-10-14 02:55:21,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:21,497 INFO L471 AbstractCegarLoop]: Abstraction has 26460 states and 45305 transitions. [2024-10-14 02:55:21,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:21,497 INFO L276 IsEmpty]: Start isEmpty. Operand 26460 states and 45305 transitions. [2024-10-14 02:55:21,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-14 02:55:21,528 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:21,528 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:21,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 02:55:21,529 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:21,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:21,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1548268814, now seen corresponding path program 1 times [2024-10-14 02:55:21,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:21,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403178680] [2024-10-14 02:55:21,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:21,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 02:55:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 02:55:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 02:55:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 02:55:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 02:55:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 02:55:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:21,630 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:21,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:21,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403178680] [2024-10-14 02:55:21,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403178680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:21,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:21,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 02:55:21,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26611576] [2024-10-14 02:55:21,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:21,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 02:55:21,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:21,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 02:55:21,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 02:55:21,633 INFO L87 Difference]: Start difference. First operand 26460 states and 45305 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:23,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:23,695 INFO L93 Difference]: Finished difference Result 72015 states and 125523 transitions. [2024-10-14 02:55:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 02:55:23,695 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-10-14 02:55:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:23,891 INFO L225 Difference]: With dead ends: 72015 [2024-10-14 02:55:23,891 INFO L226 Difference]: Without dead ends: 48287 [2024-10-14 02:55:23,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:23,960 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 810 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 825 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:23,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [825 Valid, 581 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 02:55:23,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48287 states. [2024-10-14 02:55:25,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48287 to 48220. [2024-10-14 02:55:25,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48220 states, 39668 states have (on average 1.6165170918624585) internal successors, (64124), 39675 states have internal predecessors, (64124), 8525 states have call successors, (8525), 22 states have call predecessors, (8525), 26 states have return successors, (9670), 8524 states have call predecessors, (9670), 8524 states have call successors, (9670) [2024-10-14 02:55:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48220 states to 48220 states and 82319 transitions. [2024-10-14 02:55:25,948 INFO L78 Accepts]: Start accepts. Automaton has 48220 states and 82319 transitions. Word has length 119 [2024-10-14 02:55:25,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:25,949 INFO L471 AbstractCegarLoop]: Abstraction has 48220 states and 82319 transitions. [2024-10-14 02:55:25,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:25,949 INFO L276 IsEmpty]: Start isEmpty. Operand 48220 states and 82319 transitions. [2024-10-14 02:55:25,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 02:55:25,987 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:25,987 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:25,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 02:55:25,988 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:25,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:25,988 INFO L85 PathProgramCache]: Analyzing trace with hash -2120580091, now seen corresponding path program 1 times [2024-10-14 02:55:25,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:25,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761952552] [2024-10-14 02:55:25,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:25,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:26,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:26,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:26,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 02:55:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 02:55:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 02:55:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 02:55:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 02:55:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 02:55:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:26,104 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:26,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:26,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761952552] [2024-10-14 02:55:26,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761952552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:26,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:26,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 02:55:26,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263581231] [2024-10-14 02:55:26,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:26,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 02:55:26,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:26,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 02:55:26,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 02:55:26,108 INFO L87 Difference]: Start difference. First operand 48220 states and 82319 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:28,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:28,931 INFO L93 Difference]: Finished difference Result 89734 states and 156887 transitions. [2024-10-14 02:55:28,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 02:55:28,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 120 [2024-10-14 02:55:28,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:29,327 INFO L225 Difference]: With dead ends: 89734 [2024-10-14 02:55:29,327 INFO L226 Difference]: Without dead ends: 89575 [2024-10-14 02:55:29,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-14 02:55:29,377 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 805 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 267 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:29,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 583 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 02:55:29,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89575 states. [2024-10-14 02:55:32,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89575 to 89508. [2024-10-14 02:55:32,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89508 states, 74157 states have (on average 1.6094771902854754) internal successors, (119354), 74164 states have internal predecessors, (119354), 15324 states have call successors, (15324), 22 states have call predecessors, (15324), 26 states have return successors, (17515), 15323 states have call predecessors, (17515), 15323 states have call successors, (17515) [2024-10-14 02:55:32,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89508 states to 89508 states and 152193 transitions. [2024-10-14 02:55:32,770 INFO L78 Accepts]: Start accepts. Automaton has 89508 states and 152193 transitions. Word has length 120 [2024-10-14 02:55:32,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:32,771 INFO L471 AbstractCegarLoop]: Abstraction has 89508 states and 152193 transitions. [2024-10-14 02:55:32,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-14 02:55:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 89508 states and 152193 transitions. [2024-10-14 02:55:32,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-14 02:55:32,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:32,830 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:32,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 02:55:32,830 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:32,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:32,831 INFO L85 PathProgramCache]: Analyzing trace with hash -422314899, now seen corresponding path program 1 times [2024-10-14 02:55:32,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:32,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869545141] [2024-10-14 02:55:32,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:32,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:55:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:55:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:55:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:55:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 02:55:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 02:55:33,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:33,783 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:33,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:33,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869545141] [2024-10-14 02:55:33,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869545141] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:33,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:33,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 02:55:33,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471775216] [2024-10-14 02:55:33,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:33,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 02:55:33,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:33,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 02:55:33,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2024-10-14 02:55:33,785 INFO L87 Difference]: Start difference. First operand 89508 states and 152193 transitions. Second operand has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 11 states have internal predecessors, (82), 6 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-10-14 02:55:41,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:41,546 INFO L93 Difference]: Finished difference Result 178747 states and 315868 transitions. [2024-10-14 02:55:41,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-14 02:55:41,546 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 11 states have internal predecessors, (82), 6 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 121 [2024-10-14 02:55:41,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:42,495 INFO L225 Difference]: With dead ends: 178747 [2024-10-14 02:55:42,495 INFO L226 Difference]: Without dead ends: 178595 [2024-10-14 02:55:42,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=512, Invalid=1938, Unknown=0, NotChecked=0, Total=2450 [2024-10-14 02:55:42,571 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 3190 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 6349 mSolverCounterSat, 1046 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3190 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 7395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1046 IncrementalHoareTripleChecker+Valid, 6349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:42,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3190 Valid, 2263 Invalid, 7395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1046 Valid, 6349 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-14 02:55:42,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178595 states. [2024-10-14 02:55:49,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178595 to 178282. [2024-10-14 02:55:49,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178282 states, 147773 states have (on average 1.6104430443991797) internal successors, (237980), 147677 states have internal predecessors, (237980), 30443 states have call successors, (30443), 59 states have call predecessors, (30443), 65 states have return successors, (38094), 30551 states have call predecessors, (38094), 30440 states have call successors, (38094) [2024-10-14 02:55:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178282 states to 178282 states and 306517 transitions. [2024-10-14 02:55:50,218 INFO L78 Accepts]: Start accepts. Automaton has 178282 states and 306517 transitions. Word has length 121 [2024-10-14 02:55:50,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 02:55:50,218 INFO L471 AbstractCegarLoop]: Abstraction has 178282 states and 306517 transitions. [2024-10-14 02:55:50,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.466666666666667) internal successors, (82), 11 states have internal predecessors, (82), 6 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-10-14 02:55:50,219 INFO L276 IsEmpty]: Start isEmpty. Operand 178282 states and 306517 transitions. [2024-10-14 02:55:50,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 02:55:50,316 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 02:55:50,316 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 02:55:50,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 02:55:50,316 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 02:55:50,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 02:55:50,317 INFO L85 PathProgramCache]: Analyzing trace with hash -759991900, now seen corresponding path program 1 times [2024-10-14 02:55:50,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 02:55:50,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153973765] [2024-10-14 02:55:50,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 02:55:50,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 02:55:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 02:55:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 02:55:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 02:55:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 02:55:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 02:55:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 02:55:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 02:55:50,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 02:55:50,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 02:55:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 02:55:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 02:55:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 02:55:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 02:55:50,566 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 02:55:50,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 02:55:50,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153973765] [2024-10-14 02:55:50,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153973765] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 02:55:50,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 02:55:50,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-14 02:55:50,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869753350] [2024-10-14 02:55:50,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 02:55:50,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 02:55:50,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 02:55:50,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 02:55:50,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-10-14 02:55:50,568 INFO L87 Difference]: Start difference. First operand 178282 states and 306517 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2024-10-14 02:55:58,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 02:55:58,164 INFO L93 Difference]: Finished difference Result 179263 states and 314505 transitions. [2024-10-14 02:55:58,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 02:55:58,164 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 8 states have internal predecessors, (83), 5 states have call successors, (14), 6 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 122 [2024-10-14 02:55:58,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 02:55:58,894 INFO L225 Difference]: With dead ends: 179263 [2024-10-14 02:55:58,895 INFO L226 Difference]: Without dead ends: 178571 [2024-10-14 02:55:58,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2024-10-14 02:55:58,971 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 1454 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 3628 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 4110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 3628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-14 02:55:58,971 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 1253 Invalid, 4110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 3628 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-14 02:55:59,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178571 states.