./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec0_productSimulator.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 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 01:51:04,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:51:04,288 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:51:04,295 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:51:04,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:51:04,321 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:51:04,322 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:51:04,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:51:04,323 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:51:04,324 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:51:04,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:51:04,325 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:51:04,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:51:04,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:51:04,327 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:51:04,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:51:04,328 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:51:04,328 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:51:04,328 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:51:04,328 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:51:04,329 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:51:04,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:51:04,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:51:04,331 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:51:04,331 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:51:04,332 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:51:04,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:51:04,332 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:51:04,332 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:51:04,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:51:04,333 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:51:04,333 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:51:04,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:51:04,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:51:04,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:51:04,334 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:51:04,335 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:51:04,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:51:04,335 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:51:04,335 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:51:04,336 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:51:04,336 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:51:04,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 [2024-11-22 01:51:04,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:51:04,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:51:04,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:51:04,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:51:04,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:51:04,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2024-11-22 01:51:06,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:51:06,697 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:51:06,698 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2024-11-22 01:51:06,731 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c70464e96/257c5b08547e4e62bd2768e83f3bf9e7/FLAG990623cbb [2024-11-22 01:51:06,751 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c70464e96/257c5b08547e4e62bd2768e83f3bf9e7 [2024-11-22 01:51:06,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:51:06,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:51:06,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:51:06,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:51:06,764 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:51:06,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:51:06" (1/1) ... [2024-11-22 01:51:06,767 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c31374c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:06, skipping insertion in model container [2024-11-22 01:51:06,767 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:51:06" (1/1) ... [2024-11-22 01:51:06,861 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:51:07,289 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2024-11-22 01:51:07,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:51:07,479 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:51:07,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-22 01:51:07,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [168] [2024-11-22 01:51:07,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [751] [2024-11-22 01:51:07,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [768] [2024-11-22 01:51:07,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [777] [2024-11-22 01:51:07,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1848] [2024-11-22 01:51:07,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2247] [2024-11-22 01:51:07,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2608] [2024-11-22 01:51:07,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2874] [2024-11-22 01:51:07,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2893] [2024-11-22 01:51:07,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3097] [2024-11-22 01:51:07,508 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2024-11-22 01:51:07,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:51:07,582 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:51:07,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07 WrapperNode [2024-11-22 01:51:07,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:51:07,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:51:07,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:51:07,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:51:07,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (1/1) ... [2024-11-22 01:51:07,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (1/1) ... [2024-11-22 01:51:07,697 INFO L138 Inliner]: procedures = 151, calls = 262, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1308 [2024-11-22 01:51:07,701 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:51:07,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:51:07,702 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:51:07,702 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:51:07,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (1/1) ... [2024-11-22 01:51:07,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (1/1) ... [2024-11-22 01:51:07,737 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (1/1) ... [2024-11-22 01:51:07,794 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-22 01:51:07,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (1/1) ... [2024-11-22 01:51:07,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (1/1) ... [2024-11-22 01:51:07,830 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (1/1) ... [2024-11-22 01:51:07,846 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (1/1) ... [2024-11-22 01:51:07,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (1/1) ... [2024-11-22 01:51:07,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (1/1) ... [2024-11-22 01:51:07,898 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:51:07,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:51:07,899 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:51:07,900 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:51:07,901 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (1/1) ... [2024-11-22 01:51:07,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:51:07,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:51:07,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 01:51:07,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 01:51:08,006 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-22 01:51:08,006 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-22 01:51:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2024-11-22 01:51:08,007 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2024-11-22 01:51:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2024-11-22 01:51:08,007 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2024-11-22 01:51:08,007 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-22 01:51:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-22 01:51:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-22 01:51:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-22 01:51:08,008 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-22 01:51:08,008 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-22 01:51:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-22 01:51:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-22 01:51:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2024-11-22 01:51:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2024-11-22 01:51:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-22 01:51:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-22 01:51:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2024-11-22 01:51:08,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2024-11-22 01:51:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-22 01:51:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-22 01:51:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-22 01:51:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-22 01:51:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-22 01:51:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-22 01:51:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2024-11-22 01:51:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2024-11-22 01:51:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2024-11-22 01:51:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2024-11-22 01:51:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-22 01:51:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-22 01:51:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-22 01:51:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-22 01:51:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-22 01:51:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-22 01:51:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2024-11-22 01:51:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2024-11-22 01:51:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-22 01:51:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-22 01:51:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-22 01:51:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-22 01:51:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-22 01:51:08,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-22 01:51:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2024-11-22 01:51:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2024-11-22 01:51:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:51:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-22 01:51:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-22 01:51:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-22 01:51:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-22 01:51:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2024-11-22 01:51:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2024-11-22 01:51:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2024-11-22 01:51:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2024-11-22 01:51:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2024-11-22 01:51:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2024-11-22 01:51:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-22 01:51:08,014 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-22 01:51:08,014 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-22 01:51:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-22 01:51:08,015 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-22 01:51:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-22 01:51:08,015 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-22 01:51:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-22 01:51:08,015 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-22 01:51:08,015 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-22 01:51:08,015 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-22 01:51:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-22 01:51:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-22 01:51:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-22 01:51:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2024-11-22 01:51:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2024-11-22 01:51:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2024-11-22 01:51:08,016 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2024-11-22 01:51:08,016 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-22 01:51:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-22 01:51:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-22 01:51:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-22 01:51:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:51:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:51:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:51:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:51:08,017 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-22 01:51:08,017 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-22 01:51:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2024-11-22 01:51:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2024-11-22 01:51:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2024-11-22 01:51:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2024-11-22 01:51:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-22 01:51:08,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-22 01:51:08,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:51:08,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:51:08,230 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:51:08,233 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:51:09,134 INFO L? ?]: Removed 623 outVars from TransFormulas that were not future-live. [2024-11-22 01:51:09,135 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:51:09,155 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:51:09,155 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:51:09,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:51:09 BoogieIcfgContainer [2024-11-22 01:51:09,155 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:51:09,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:51:09,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:51:09,159 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:51:09,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:51:06" (1/3) ... [2024-11-22 01:51:09,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa4f798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:51:09, skipping insertion in model container [2024-11-22 01:51:09,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:51:07" (2/3) ... [2024-11-22 01:51:09,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa4f798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:51:09, skipping insertion in model container [2024-11-22 01:51:09,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:51:09" (3/3) ... [2024-11-22 01:51:09,161 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_productSimulator.cil.c [2024-11-22 01:51:09,173 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:51:09,174 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:51:09,250 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:51:09,257 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;@13fdbc14, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:51:09,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:51:09,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 600 states, 446 states have (on average 1.515695067264574) internal successors, (676), 466 states have internal predecessors, (676), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-22 01:51:09,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-22 01:51:09,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:09,290 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:09,290 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:09,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:09,331 INFO L85 PathProgramCache]: Analyzing trace with hash 357466830, now seen corresponding path program 1 times [2024-11-22 01:51:09,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:09,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801784574] [2024-11-22 01:51:09,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:09,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:09,725 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-22 01:51:09,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:09,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801784574] [2024-11-22 01:51:09,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801784574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:09,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:09,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 01:51:09,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691020235] [2024-11-22 01:51:09,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:09,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 01:51:09,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:09,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 01:51:09,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 01:51:09,756 INFO L87 Difference]: Start difference. First operand has 600 states, 446 states have (on average 1.515695067264574) internal successors, (676), 466 states have internal predecessors, (676), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-22 01:51:09,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:09,826 INFO L93 Difference]: Finished difference Result 931 states and 1371 transitions. [2024-11-22 01:51:09,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 01:51:09,828 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 164 [2024-11-22 01:51:09,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:09,846 INFO L225 Difference]: With dead ends: 931 [2024-11-22 01:51:09,846 INFO L226 Difference]: Without dead ends: 593 [2024-11-22 01:51:09,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 01:51:09,854 INFO L432 NwaCegarLoop]: 890 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 890 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:09,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:09,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-22 01:51:09,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2024-11-22 01:51:09,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 440 states have (on average 1.5113636363636365) internal successors, (665), 459 states have internal predecessors, (665), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-22 01:51:09,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 882 transitions. [2024-11-22 01:51:09,941 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 882 transitions. Word has length 164 [2024-11-22 01:51:09,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:09,945 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 882 transitions. [2024-11-22 01:51:09,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-22 01:51:09,946 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 882 transitions. [2024-11-22 01:51:09,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 01:51:09,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:09,961 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:09,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 01:51:09,961 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:09,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:09,964 INFO L85 PathProgramCache]: Analyzing trace with hash -228534745, now seen corresponding path program 1 times [2024-11-22 01:51:09,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:09,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738541319] [2024-11-22 01:51:09,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:09,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-22 01:51:10,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:10,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738541319] [2024-11-22 01:51:10,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738541319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:10,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:10,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 01:51:10,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696970941] [2024-11-22 01:51:10,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:10,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 01:51:10,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:10,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 01:51:10,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:51:10,376 INFO L87 Difference]: Start difference. First operand 593 states and 882 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-22 01:51:10,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:10,539 INFO L93 Difference]: Finished difference Result 1150 states and 1708 transitions. [2024-11-22 01:51:10,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 01:51:10,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 178 [2024-11-22 01:51:10,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:10,548 INFO L225 Difference]: With dead ends: 1150 [2024-11-22 01:51:10,548 INFO L226 Difference]: Without dead ends: 593 [2024-11-22 01:51:10,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:51:10,553 INFO L432 NwaCegarLoop]: 880 mSDtfsCounter, 0 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3508 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:10,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3508 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:51:10,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-22 01:51:10,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2024-11-22 01:51:10,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 440 states have (on average 1.4954545454545454) internal successors, (658), 459 states have internal predecessors, (658), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-22 01:51:10,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 875 transitions. [2024-11-22 01:51:10,602 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 875 transitions. Word has length 178 [2024-11-22 01:51:10,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:10,602 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 875 transitions. [2024-11-22 01:51:10,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-22 01:51:10,603 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 875 transitions. [2024-11-22 01:51:10,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-22 01:51:10,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:10,606 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:10,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 01:51:10,606 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:10,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:10,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1502135279, now seen corresponding path program 1 times [2024-11-22 01:51:10,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:10,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820359150] [2024-11-22 01:51:10,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:10,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:11,011 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-22 01:51:11,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:11,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820359150] [2024-11-22 01:51:11,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820359150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:51:11,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954473883] [2024-11-22 01:51:11,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:11,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:11,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:51:11,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:51:11,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 01:51:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:11,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-22 01:51:11,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:51:11,573 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-22 01:51:11,574 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:51:11,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954473883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:11,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:51:11,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-22 01:51:11,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255949822] [2024-11-22 01:51:11,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:11,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:11,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:11,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:11,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:51:11,576 INFO L87 Difference]: Start difference. First operand 593 states and 875 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:51:11,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:11,604 INFO L93 Difference]: Finished difference Result 921 states and 1333 transitions. [2024-11-22 01:51:11,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:11,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 190 [2024-11-22 01:51:11,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:11,609 INFO L225 Difference]: With dead ends: 921 [2024-11-22 01:51:11,610 INFO L226 Difference]: Without dead ends: 596 [2024-11-22 01:51:11,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:51:11,612 INFO L432 NwaCegarLoop]: 873 mSDtfsCounter, 1 mSDsluCounter, 871 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:11,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1744 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:11,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2024-11-22 01:51:11,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 595. [2024-11-22 01:51:11,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 442 states have (on average 1.493212669683258) internal successors, (660), 461 states have internal predecessors, (660), 109 states have call successors, (109), 43 states have call predecessors, (109), 43 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-22 01:51:11,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 877 transitions. [2024-11-22 01:51:11,639 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 877 transitions. Word has length 190 [2024-11-22 01:51:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:11,640 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 877 transitions. [2024-11-22 01:51:11,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:51:11,641 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 877 transitions. [2024-11-22 01:51:11,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-22 01:51:11,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:11,646 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:11,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 01:51:11,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:11,851 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:11,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:11,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1692418081, now seen corresponding path program 1 times [2024-11-22 01:51:11,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:11,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521159129] [2024-11-22 01:51:11,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:11,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:12,171 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-22 01:51:12,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:12,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521159129] [2024-11-22 01:51:12,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521159129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:51:12,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44621273] [2024-11-22 01:51:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:12,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:12,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:51:12,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:51:12,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 01:51:12,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:12,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 1486 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:51:12,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:51:12,791 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-22 01:51:12,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:51:12,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44621273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:12,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:51:12,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-22 01:51:12,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431887717] [2024-11-22 01:51:12,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:12,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:12,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:12,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:12,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:51:12,796 INFO L87 Difference]: Start difference. First operand 595 states and 877 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-22 01:51:12,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:12,846 INFO L93 Difference]: Finished difference Result 1448 states and 2144 transitions. [2024-11-22 01:51:12,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:12,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 190 [2024-11-22 01:51:12,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:12,854 INFO L225 Difference]: With dead ends: 1448 [2024-11-22 01:51:12,854 INFO L226 Difference]: Without dead ends: 1131 [2024-11-22 01:51:12,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:51:12,857 INFO L432 NwaCegarLoop]: 911 mSDtfsCounter, 741 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:12,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1751 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:12,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2024-11-22 01:51:12,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1129. [2024-11-22 01:51:12,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 842 states have (on average 1.5) internal successors, (1263), 876 states have internal predecessors, (1263), 200 states have call successors, (200), 86 states have call predecessors, (200), 86 states have return successors, (211), 197 states have call predecessors, (211), 198 states have call successors, (211) [2024-11-22 01:51:12,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1674 transitions. [2024-11-22 01:51:12,909 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1674 transitions. Word has length 190 [2024-11-22 01:51:12,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:12,909 INFO L471 AbstractCegarLoop]: Abstraction has 1129 states and 1674 transitions. [2024-11-22 01:51:12,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-22 01:51:12,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1674 transitions. [2024-11-22 01:51:12,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-22 01:51:12,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:12,914 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:12,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 01:51:13,118 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,SelfDestructingSolverStorable3 [2024-11-22 01:51:13,119 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:13,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:13,121 INFO L85 PathProgramCache]: Analyzing trace with hash -560818087, now seen corresponding path program 1 times [2024-11-22 01:51:13,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:13,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339943992] [2024-11-22 01:51:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:13,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:13,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-22 01:51:13,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:13,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339943992] [2024-11-22 01:51:13,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339943992] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:51:13,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275849793] [2024-11-22 01:51:13,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:13,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:13,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:51:13,483 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:51:13,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 01:51:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:13,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:51:13,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:51:13,945 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-22 01:51:13,945 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:51:13,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275849793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:13,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:51:13,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-22 01:51:13,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094144030] [2024-11-22 01:51:13,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:13,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:51:13,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:13,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:51:13,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-22 01:51:13,949 INFO L87 Difference]: Start difference. First operand 1129 states and 1674 transitions. Second operand has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 01:51:14,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:14,098 INFO L93 Difference]: Finished difference Result 2182 states and 3249 transitions. [2024-11-22 01:51:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:51:14,099 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 177 [2024-11-22 01:51:14,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:14,109 INFO L225 Difference]: With dead ends: 2182 [2024-11-22 01:51:14,110 INFO L226 Difference]: Without dead ends: 1139 [2024-11-22 01:51:14,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:51:14,117 INFO L432 NwaCegarLoop]: 863 mSDtfsCounter, 4 mSDsluCounter, 4297 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5160 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:14,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5160 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:51:14,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2024-11-22 01:51:14,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1137. [2024-11-22 01:51:14,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 846 states have (on average 1.4976359338061467) internal successors, (1267), 882 states have internal predecessors, (1267), 200 states have call successors, (200), 86 states have call predecessors, (200), 90 states have return successors, (219), 199 states have call predecessors, (219), 198 states have call successors, (219) [2024-11-22 01:51:14,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1686 transitions. [2024-11-22 01:51:14,190 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1686 transitions. Word has length 177 [2024-11-22 01:51:14,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:14,191 INFO L471 AbstractCegarLoop]: Abstraction has 1137 states and 1686 transitions. [2024-11-22 01:51:14,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 01:51:14,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1686 transitions. [2024-11-22 01:51:14,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-22 01:51:14,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:14,200 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:14,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 01:51:14,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:14,402 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:14,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:14,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1203617923, now seen corresponding path program 1 times [2024-11-22 01:51:14,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:14,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304661637] [2024-11-22 01:51:14,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:14,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:14,688 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-22 01:51:14,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:14,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304661637] [2024-11-22 01:51:14,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304661637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:14,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:14,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:51:14,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302004257] [2024-11-22 01:51:14,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:14,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:51:14,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:14,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:51:14,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:51:14,692 INFO L87 Difference]: Start difference. First operand 1137 states and 1686 transitions. Second operand has 7 states, 6 states have (on average 17.0) internal successors, (102), 7 states have internal predecessors, (102), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 01:51:14,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:14,855 INFO L93 Difference]: Finished difference Result 2154 states and 3209 transitions. [2024-11-22 01:51:14,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:51:14,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.0) internal successors, (102), 7 states have internal predecessors, (102), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 178 [2024-11-22 01:51:14,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:14,865 INFO L225 Difference]: With dead ends: 2154 [2024-11-22 01:51:14,865 INFO L226 Difference]: Without dead ends: 1143 [2024-11-22 01:51:14,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:51:14,871 INFO L432 NwaCegarLoop]: 863 mSDtfsCounter, 4 mSDsluCounter, 4297 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5160 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:14,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5160 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:51:14,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2024-11-22 01:51:14,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1141. [2024-11-22 01:51:14,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 848 states have (on average 1.4964622641509433) internal successors, (1269), 884 states have internal predecessors, (1269), 200 states have call successors, (200), 86 states have call predecessors, (200), 92 states have return successors, (221), 201 states have call predecessors, (221), 198 states have call successors, (221) [2024-11-22 01:51:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1690 transitions. [2024-11-22 01:51:14,927 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1690 transitions. Word has length 178 [2024-11-22 01:51:14,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:14,928 INFO L471 AbstractCegarLoop]: Abstraction has 1141 states and 1690 transitions. [2024-11-22 01:51:14,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.0) internal successors, (102), 7 states have internal predecessors, (102), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 01:51:14,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1690 transitions. [2024-11-22 01:51:14,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-22 01:51:14,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:14,935 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:14,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:51:14,936 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:14,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:14,936 INFO L85 PathProgramCache]: Analyzing trace with hash 212607187, now seen corresponding path program 2 times [2024-11-22 01:51:14,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:14,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658389611] [2024-11-22 01:51:14,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:51:14,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:14,974 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 01:51:14,975 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:51:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-22 01:51:15,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:15,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658389611] [2024-11-22 01:51:15,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658389611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:15,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:15,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:51:15,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762006816] [2024-11-22 01:51:15,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:15,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:51:15,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:15,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:51:15,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:51:15,109 INFO L87 Difference]: Start difference. First operand 1141 states and 1690 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 1 states have call successors, (30), 1 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-22 01:51:15,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:15,160 INFO L93 Difference]: Finished difference Result 1151 states and 1704 transitions. [2024-11-22 01:51:15,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:51:15,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 1 states have call successors, (30), 1 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 1 states have call successors, (23) Word has length 179 [2024-11-22 01:51:15,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:15,169 INFO L225 Difference]: With dead ends: 1151 [2024-11-22 01:51:15,170 INFO L226 Difference]: Without dead ends: 1149 [2024-11-22 01:51:15,171 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:51:15,171 INFO L432 NwaCegarLoop]: 872 mSDtfsCounter, 0 mSDsluCounter, 4351 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5223 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:15,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5223 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:15,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2024-11-22 01:51:15,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1149. [2024-11-22 01:51:15,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1149 states, 854 states have (on average 1.4929742388758782) internal successors, (1275), 890 states have internal predecessors, (1275), 200 states have call successors, (200), 86 states have call predecessors, (200), 94 states have return successors, (226), 203 states have call predecessors, (226), 198 states have call successors, (226) [2024-11-22 01:51:15,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1149 states to 1149 states and 1701 transitions. [2024-11-22 01:51:15,221 INFO L78 Accepts]: Start accepts. Automaton has 1149 states and 1701 transitions. Word has length 179 [2024-11-22 01:51:15,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:15,221 INFO L471 AbstractCegarLoop]: Abstraction has 1149 states and 1701 transitions. [2024-11-22 01:51:15,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 5 states have internal predecessors, (99), 1 states have call successors, (30), 1 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-22 01:51:15,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1149 states and 1701 transitions. [2024-11-22 01:51:15,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-22 01:51:15,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:15,228 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:15,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:51:15,229 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:15,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:15,229 INFO L85 PathProgramCache]: Analyzing trace with hash 955812898, now seen corresponding path program 1 times [2024-11-22 01:51:15,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:15,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078784710] [2024-11-22 01:51:15,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:15,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-22 01:51:15,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:15,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078784710] [2024-11-22 01:51:15,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078784710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:15,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:15,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:51:15,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995504830] [2024-11-22 01:51:15,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:15,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:51:15,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:15,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:51:15,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:51:15,471 INFO L87 Difference]: Start difference. First operand 1149 states and 1701 transitions. Second operand has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 01:51:15,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:15,599 INFO L93 Difference]: Finished difference Result 2178 states and 3243 transitions. [2024-11-22 01:51:15,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:51:15,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 182 [2024-11-22 01:51:15,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:15,609 INFO L225 Difference]: With dead ends: 2178 [2024-11-22 01:51:15,609 INFO L226 Difference]: Without dead ends: 1159 [2024-11-22 01:51:15,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:51:15,613 INFO L432 NwaCegarLoop]: 868 mSDtfsCounter, 2 mSDsluCounter, 4317 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5185 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:15,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5185 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:51:15,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2024-11-22 01:51:15,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1153. [2024-11-22 01:51:15,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 856 states have (on average 1.4918224299065421) internal successors, (1277), 894 states have internal predecessors, (1277), 200 states have call successors, (200), 86 states have call predecessors, (200), 96 states have return successors, (232), 203 states have call predecessors, (232), 198 states have call successors, (232) [2024-11-22 01:51:15,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1709 transitions. [2024-11-22 01:51:15,659 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1709 transitions. Word has length 182 [2024-11-22 01:51:15,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:15,660 INFO L471 AbstractCegarLoop]: Abstraction has 1153 states and 1709 transitions. [2024-11-22 01:51:15,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 7 states have internal predecessors, (106), 4 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-22 01:51:15,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1709 transitions. [2024-11-22 01:51:15,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-22 01:51:15,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:15,666 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:15,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:51:15,667 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:15,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:15,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1111401673, now seen corresponding path program 1 times [2024-11-22 01:51:15,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:15,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273310470] [2024-11-22 01:51:15,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:15,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:15,802 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-22 01:51:15,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:15,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273310470] [2024-11-22 01:51:15,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273310470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:51:15,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377909831] [2024-11-22 01:51:15,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:15,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:15,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:51:15,808 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:51:15,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 01:51:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:16,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:51:16,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:51:16,370 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-22 01:51:16,371 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:51:16,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377909831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:16,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:51:16,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-22 01:51:16,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515243752] [2024-11-22 01:51:16,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:16,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:16,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:16,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:16,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:51:16,373 INFO L87 Difference]: Start difference. First operand 1153 states and 1709 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 01:51:16,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:16,483 INFO L93 Difference]: Finished difference Result 3335 states and 5084 transitions. [2024-11-22 01:51:16,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:16,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 183 [2024-11-22 01:51:16,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:16,495 INFO L225 Difference]: With dead ends: 3335 [2024-11-22 01:51:16,495 INFO L226 Difference]: Without dead ends: 1140 [2024-11-22 01:51:16,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 01:51:16,506 INFO L432 NwaCegarLoop]: 922 mSDtfsCounter, 727 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:16,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1767 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:16,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2024-11-22 01:51:16,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1140. [2024-11-22 01:51:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 850 states have (on average 1.4858823529411764) internal successors, (1263), 884 states have internal predecessors, (1263), 194 states have call successors, (194), 87 states have call predecessors, (194), 95 states have return successors, (220), 195 states have call predecessors, (220), 192 states have call successors, (220) [2024-11-22 01:51:16,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1677 transitions. [2024-11-22 01:51:16,559 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1677 transitions. Word has length 183 [2024-11-22 01:51:16,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:16,559 INFO L471 AbstractCegarLoop]: Abstraction has 1140 states and 1677 transitions. [2024-11-22 01:51:16,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-22 01:51:16,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1677 transitions. [2024-11-22 01:51:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-22 01:51:16,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:16,596 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:16,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-22 01:51:16,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:16,798 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:16,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:16,799 INFO L85 PathProgramCache]: Analyzing trace with hash 608795585, now seen corresponding path program 1 times [2024-11-22 01:51:16,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:16,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700008536] [2024-11-22 01:51:16,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:16,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:16,863 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-22 01:51:16,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:16,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700008536] [2024-11-22 01:51:16,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700008536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:16,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:16,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:51:16,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131730208] [2024-11-22 01:51:16,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:16,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:16,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:16,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:16,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:16,865 INFO L87 Difference]: Start difference. First operand 1140 states and 1677 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:51:16,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:16,899 INFO L93 Difference]: Finished difference Result 2245 states and 3337 transitions. [2024-11-22 01:51:16,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:16,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 199 [2024-11-22 01:51:16,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:16,906 INFO L225 Difference]: With dead ends: 2245 [2024-11-22 01:51:16,907 INFO L226 Difference]: Without dead ends: 1138 [2024-11-22 01:51:16,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:16,910 INFO L432 NwaCegarLoop]: 857 mSDtfsCounter, 827 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:16,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 886 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:16,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2024-11-22 01:51:16,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1138. [2024-11-22 01:51:16,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1138 states, 850 states have (on average 1.4823529411764707) internal successors, (1260), 882 states have internal predecessors, (1260), 192 states have call successors, (192), 87 states have call predecessors, (192), 95 states have return successors, (217), 193 states have call predecessors, (217), 190 states have call successors, (217) [2024-11-22 01:51:16,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1669 transitions. [2024-11-22 01:51:16,944 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1669 transitions. Word has length 199 [2024-11-22 01:51:16,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:16,944 INFO L471 AbstractCegarLoop]: Abstraction has 1138 states and 1669 transitions. [2024-11-22 01:51:16,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 01:51:16,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1669 transitions. [2024-11-22 01:51:16,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-22 01:51:16,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:16,949 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:16,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:51:16,950 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:16,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:16,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1564869705, now seen corresponding path program 1 times [2024-11-22 01:51:16,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:16,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142160046] [2024-11-22 01:51:16,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:16,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:17,015 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-22 01:51:17,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:17,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142160046] [2024-11-22 01:51:17,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142160046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:17,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:17,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:51:17,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741067267] [2024-11-22 01:51:17,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:17,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:17,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:17,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:17,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:17,018 INFO L87 Difference]: Start difference. First operand 1138 states and 1669 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-22 01:51:17,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:17,074 INFO L93 Difference]: Finished difference Result 2211 states and 3252 transitions. [2024-11-22 01:51:17,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:17,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 214 [2024-11-22 01:51:17,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:17,082 INFO L225 Difference]: With dead ends: 2211 [2024-11-22 01:51:17,082 INFO L226 Difference]: Without dead ends: 1132 [2024-11-22 01:51:17,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:17,086 INFO L432 NwaCegarLoop]: 830 mSDtfsCounter, 799 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:17,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 863 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:17,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2024-11-22 01:51:17,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1116. [2024-11-22 01:51:17,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 842 states have (on average 1.4608076009501187) internal successors, (1230), 860 states have internal predecessors, (1230), 186 states have call successors, (186), 87 states have call predecessors, (186), 87 states have return successors, (195), 183 states have call predecessors, (195), 184 states have call successors, (195) [2024-11-22 01:51:17,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1611 transitions. [2024-11-22 01:51:17,125 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1611 transitions. Word has length 214 [2024-11-22 01:51:17,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:17,125 INFO L471 AbstractCegarLoop]: Abstraction has 1116 states and 1611 transitions. [2024-11-22 01:51:17,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-22 01:51:17,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1611 transitions. [2024-11-22 01:51:17,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-22 01:51:17,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:17,129 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:17,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 01:51:17,130 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:17,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:17,130 INFO L85 PathProgramCache]: Analyzing trace with hash 712296959, now seen corresponding path program 1 times [2024-11-22 01:51:17,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:17,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468693574] [2024-11-22 01:51:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:17,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:17,426 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-22 01:51:17,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:17,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468693574] [2024-11-22 01:51:17,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468693574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:51:17,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537850807] [2024-11-22 01:51:17,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:17,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:17,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:51:17,429 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:51:17,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-22 01:51:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:17,750 INFO L255 TraceCheckSpWp]: Trace formula consists of 1626 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:51:17,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:51:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-22 01:51:17,774 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:51:17,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537850807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:17,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:51:17,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-22 01:51:17,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027661985] [2024-11-22 01:51:17,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:17,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:17,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:17,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:17,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:51:17,777 INFO L87 Difference]: Start difference. First operand 1116 states and 1611 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-22 01:51:17,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:17,822 INFO L93 Difference]: Finished difference Result 2305 states and 3387 transitions. [2024-11-22 01:51:17,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:17,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 223 [2024-11-22 01:51:17,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:17,831 INFO L225 Difference]: With dead ends: 2305 [2024-11-22 01:51:17,831 INFO L226 Difference]: Without dead ends: 1312 [2024-11-22 01:51:17,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:51:17,834 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 165 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:17,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1657 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:17,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2024-11-22 01:51:17,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1296. [2024-11-22 01:51:17,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 994 states have (on average 1.4748490945674044) internal successors, (1466), 1012 states have internal predecessors, (1466), 214 states have call successors, (214), 87 states have call predecessors, (214), 87 states have return successors, (223), 211 states have call predecessors, (223), 212 states have call successors, (223) [2024-11-22 01:51:17,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1903 transitions. [2024-11-22 01:51:17,884 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1903 transitions. Word has length 223 [2024-11-22 01:51:17,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:17,885 INFO L471 AbstractCegarLoop]: Abstraction has 1296 states and 1903 transitions. [2024-11-22 01:51:17,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-22 01:51:17,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1903 transitions. [2024-11-22 01:51:17,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-22 01:51:17,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:17,889 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:17,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-22 01:51:18,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-22 01:51:18,090 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:18,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:18,091 INFO L85 PathProgramCache]: Analyzing trace with hash -2014942390, now seen corresponding path program 1 times [2024-11-22 01:51:18,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:18,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362891486] [2024-11-22 01:51:18,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:18,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:18,425 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-22 01:51:18,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:18,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362891486] [2024-11-22 01:51:18,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362891486] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:51:18,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465004253] [2024-11-22 01:51:18,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:18,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:18,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:51:18,430 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:51:18,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-22 01:51:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:18,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 1661 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-22 01:51:18,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:51:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-22 01:51:18,894 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:51:18,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465004253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:18,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:51:18,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-22 01:51:18,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562032792] [2024-11-22 01:51:18,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:18,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:51:18,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:18,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:51:18,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-22 01:51:18,897 INFO L87 Difference]: Start difference. First operand 1296 states and 1903 transitions. Second operand has 8 states, 6 states have (on average 22.833333333333332) internal successors, (137), 8 states have internal predecessors, (137), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-22 01:51:19,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:19,038 INFO L93 Difference]: Finished difference Result 2519 states and 3722 transitions. [2024-11-22 01:51:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:51:19,039 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 22.833333333333332) internal successors, (137), 8 states have internal predecessors, (137), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) Word has length 231 [2024-11-22 01:51:19,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:19,051 INFO L225 Difference]: With dead ends: 2519 [2024-11-22 01:51:19,051 INFO L226 Difference]: Without dead ends: 1300 [2024-11-22 01:51:19,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-22 01:51:19,058 INFO L432 NwaCegarLoop]: 831 mSDtfsCounter, 4 mSDsluCounter, 4969 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5800 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:19,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5800 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:51:19,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2024-11-22 01:51:19,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1300. [2024-11-22 01:51:19,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 996 states have (on average 1.4738955823293172) internal successors, (1468), 1016 states have internal predecessors, (1468), 214 states have call successors, (214), 87 states have call predecessors, (214), 89 states have return successors, (227), 211 states have call predecessors, (227), 212 states have call successors, (227) [2024-11-22 01:51:19,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1909 transitions. [2024-11-22 01:51:19,119 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1909 transitions. Word has length 231 [2024-11-22 01:51:19,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:19,120 INFO L471 AbstractCegarLoop]: Abstraction has 1300 states and 1909 transitions. [2024-11-22 01:51:19,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 22.833333333333332) internal successors, (137), 8 states have internal predecessors, (137), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-22 01:51:19,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1909 transitions. [2024-11-22 01:51:19,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-22 01:51:19,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:19,124 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:19,136 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-22 01:51:19,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:19,330 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:19,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:19,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1085313930, now seen corresponding path program 1 times [2024-11-22 01:51:19,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:19,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942673937] [2024-11-22 01:51:19,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:19,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:19,832 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-22 01:51:19,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:19,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942673937] [2024-11-22 01:51:19,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942673937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:51:19,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597460959] [2024-11-22 01:51:19,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:19,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:19,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:51:19,837 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:51:19,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-22 01:51:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:20,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 01:51:20,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:51:20,367 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-22 01:51:20,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 01:51:20,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597460959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:20,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 01:51:20,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-22 01:51:20,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520974771] [2024-11-22 01:51:20,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:20,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:51:20,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:20,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:51:20,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:51:20,370 INFO L87 Difference]: Start difference. First operand 1300 states and 1909 transitions. Second operand has 6 states, 5 states have (on average 27.8) internal successors, (139), 6 states have internal predecessors, (139), 3 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 01:51:20,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:20,473 INFO L93 Difference]: Finished difference Result 2521 states and 3730 transitions. [2024-11-22 01:51:20,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:51:20,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.8) internal successors, (139), 6 states have internal predecessors, (139), 3 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 232 [2024-11-22 01:51:20,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:20,485 INFO L225 Difference]: With dead ends: 2521 [2024-11-22 01:51:20,485 INFO L226 Difference]: Without dead ends: 1304 [2024-11-22 01:51:20,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-22 01:51:20,491 INFO L432 NwaCegarLoop]: 831 mSDtfsCounter, 2 mSDsluCounter, 3307 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4138 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:20,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4138 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:20,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2024-11-22 01:51:20,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1304. [2024-11-22 01:51:20,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 998 states have (on average 1.4729458917835672) internal successors, (1470), 1020 states have internal predecessors, (1470), 214 states have call successors, (214), 87 states have call predecessors, (214), 91 states have return successors, (237), 211 states have call predecessors, (237), 212 states have call successors, (237) [2024-11-22 01:51:20,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1921 transitions. [2024-11-22 01:51:20,561 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1921 transitions. Word has length 232 [2024-11-22 01:51:20,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:20,562 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 1921 transitions. [2024-11-22 01:51:20,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.8) internal successors, (139), 6 states have internal predecessors, (139), 3 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-22 01:51:20,565 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1921 transitions. [2024-11-22 01:51:20,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-22 01:51:20,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:20,576 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:20,590 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-22 01:51:20,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:20,777 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:20,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:20,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1432511391, now seen corresponding path program 1 times [2024-11-22 01:51:20,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:20,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877745320] [2024-11-22 01:51:20,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:20,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:21,121 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-22 01:51:21,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:21,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877745320] [2024-11-22 01:51:21,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877745320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:21,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:21,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:51:21,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715714074] [2024-11-22 01:51:21,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:21,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:51:21,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:21,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:51:21,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:51:21,125 INFO L87 Difference]: Start difference. First operand 1304 states and 1921 transitions. Second operand has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-22 01:51:21,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:21,295 INFO L93 Difference]: Finished difference Result 2497 states and 3704 transitions. [2024-11-22 01:51:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:51:21,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 226 [2024-11-22 01:51:21,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:21,303 INFO L225 Difference]: With dead ends: 2497 [2024-11-22 01:51:21,303 INFO L226 Difference]: Without dead ends: 1304 [2024-11-22 01:51:21,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:51:21,308 INFO L432 NwaCegarLoop]: 832 mSDtfsCounter, 4 mSDsluCounter, 4975 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5807 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:21,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5807 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:51:21,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1304 states. [2024-11-22 01:51:21,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304 to 1304. [2024-11-22 01:51:21,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1304 states, 998 states have (on average 1.4729458917835672) internal successors, (1470), 1020 states have internal predecessors, (1470), 214 states have call successors, (214), 87 states have call predecessors, (214), 91 states have return successors, (235), 211 states have call predecessors, (235), 212 states have call successors, (235) [2024-11-22 01:51:21,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1919 transitions. [2024-11-22 01:51:21,356 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1919 transitions. Word has length 226 [2024-11-22 01:51:21,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:21,356 INFO L471 AbstractCegarLoop]: Abstraction has 1304 states and 1919 transitions. [2024-11-22 01:51:21,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-22 01:51:21,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1919 transitions. [2024-11-22 01:51:21,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2024-11-22 01:51:21,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:21,361 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:21,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:51:21,361 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:21,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:21,362 INFO L85 PathProgramCache]: Analyzing trace with hash -572248347, now seen corresponding path program 2 times [2024-11-22 01:51:21,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:21,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535624031] [2024-11-22 01:51:21,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 01:51:21,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:21,396 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 01:51:21,396 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 01:51:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-22 01:51:21,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:21,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535624031] [2024-11-22 01:51:21,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535624031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:21,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:21,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:51:21,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727173246] [2024-11-22 01:51:21,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:21,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:51:21,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:21,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:51:21,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:51:21,569 INFO L87 Difference]: Start difference. First operand 1304 states and 1919 transitions. Second operand has 8 states, 8 states have (on average 16.25) internal successors, (130), 7 states have internal predecessors, (130), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-22 01:51:22,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:22,033 INFO L93 Difference]: Finished difference Result 2743 states and 4146 transitions. [2024-11-22 01:51:22,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 01:51:22,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 7 states have internal predecessors, (130), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) Word has length 227 [2024-11-22 01:51:22,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:22,043 INFO L225 Difference]: With dead ends: 2743 [2024-11-22 01:51:22,043 INFO L226 Difference]: Without dead ends: 2150 [2024-11-22 01:51:22,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-22 01:51:22,046 INFO L432 NwaCegarLoop]: 840 mSDtfsCounter, 756 mSDsluCounter, 4394 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:22,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 5234 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 01:51:22,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2024-11-22 01:51:22,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2130. [2024-11-22 01:51:22,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 1676 states have (on average 1.5190930787589498) internal successors, (2546), 1706 states have internal predecessors, (2546), 324 states have call successors, (324), 133 states have call predecessors, (324), 129 states have return successors, (371), 307 states have call predecessors, (371), 322 states have call successors, (371) [2024-11-22 01:51:22,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 3241 transitions. [2024-11-22 01:51:22,116 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 3241 transitions. Word has length 227 [2024-11-22 01:51:22,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:22,116 INFO L471 AbstractCegarLoop]: Abstraction has 2130 states and 3241 transitions. [2024-11-22 01:51:22,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 7 states have internal predecessors, (130), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (29), 4 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-22 01:51:22,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 3241 transitions. [2024-11-22 01:51:22,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2024-11-22 01:51:22,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:22,123 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:22,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:51:22,124 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:22,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:22,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1325063074, now seen corresponding path program 1 times [2024-11-22 01:51:22,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:22,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703106321] [2024-11-22 01:51:22,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:22,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:22,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-22 01:51:22,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:22,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703106321] [2024-11-22 01:51:22,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703106321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:22,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:22,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:51:22,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112665740] [2024-11-22 01:51:22,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:22,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:51:22,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:22,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:51:22,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:51:22,398 INFO L87 Difference]: Start difference. First operand 2130 states and 3241 transitions. Second operand has 8 states, 6 states have (on average 22.833333333333332) internal successors, (137), 8 states have internal predecessors, (137), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-22 01:51:22,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:22,524 INFO L93 Difference]: Finished difference Result 4153 states and 6354 transitions. [2024-11-22 01:51:22,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:51:22,525 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 22.833333333333332) internal successors, (137), 8 states have internal predecessors, (137), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) Word has length 235 [2024-11-22 01:51:22,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:22,534 INFO L225 Difference]: With dead ends: 4153 [2024-11-22 01:51:22,535 INFO L226 Difference]: Without dead ends: 2134 [2024-11-22 01:51:22,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:51:22,540 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 3 mSDsluCounter, 4980 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5813 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:22,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5813 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:22,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2024-11-22 01:51:22,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2134. [2024-11-22 01:51:22,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2134 states, 1678 states have (on average 1.5184743742550655) internal successors, (2548), 1710 states have internal predecessors, (2548), 324 states have call successors, (324), 133 states have call predecessors, (324), 131 states have return successors, (375), 307 states have call predecessors, (375), 322 states have call successors, (375) [2024-11-22 01:51:22,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2134 states to 2134 states and 3247 transitions. [2024-11-22 01:51:22,598 INFO L78 Accepts]: Start accepts. Automaton has 2134 states and 3247 transitions. Word has length 235 [2024-11-22 01:51:22,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:22,599 INFO L471 AbstractCegarLoop]: Abstraction has 2134 states and 3247 transitions. [2024-11-22 01:51:22,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 22.833333333333332) internal successors, (137), 8 states have internal predecessors, (137), 4 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (30), 3 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-22 01:51:22,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2134 states and 3247 transitions. [2024-11-22 01:51:22,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-22 01:51:22,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:22,606 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:22,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:51:22,606 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:22,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:22,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1663456949, now seen corresponding path program 1 times [2024-11-22 01:51:22,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:22,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817691098] [2024-11-22 01:51:22,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:22,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:22,760 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-22 01:51:22,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:22,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817691098] [2024-11-22 01:51:22,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817691098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:22,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:22,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 01:51:22,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122397474] [2024-11-22 01:51:22,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:22,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 01:51:22,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:22,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 01:51:22,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:51:22,762 INFO L87 Difference]: Start difference. First operand 2134 states and 3247 transitions. Second operand has 9 states, 7 states have (on average 20.142857142857142) internal successors, (141), 8 states have internal predecessors, (141), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-22 01:51:22,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:22,939 INFO L93 Difference]: Finished difference Result 3535 states and 5354 transitions. [2024-11-22 01:51:22,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:51:22,940 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 20.142857142857142) internal successors, (141), 8 states have internal predecessors, (141), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 236 [2024-11-22 01:51:22,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:22,947 INFO L225 Difference]: With dead ends: 3535 [2024-11-22 01:51:22,947 INFO L226 Difference]: Without dead ends: 1532 [2024-11-22 01:51:22,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:51:22,951 INFO L432 NwaCegarLoop]: 825 mSDtfsCounter, 7 mSDsluCounter, 5745 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6570 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:22,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6570 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:51:22,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2024-11-22 01:51:22,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1532. [2024-11-22 01:51:22,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1172 states have (on average 1.4863481228668942) internal successors, (1742), 1204 states have internal predecessors, (1742), 246 states have call successors, (246), 113 states have call predecessors, (246), 113 states have return successors, (267), 231 states have call predecessors, (267), 236 states have call successors, (267) [2024-11-22 01:51:22,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 2255 transitions. [2024-11-22 01:51:22,996 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 2255 transitions. Word has length 236 [2024-11-22 01:51:22,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:22,997 INFO L471 AbstractCegarLoop]: Abstraction has 1532 states and 2255 transitions. [2024-11-22 01:51:22,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 20.142857142857142) internal successors, (141), 8 states have internal predecessors, (141), 4 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2024-11-22 01:51:22,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 2255 transitions. [2024-11-22 01:51:23,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-22 01:51:23,000 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:23,000 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:23,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:51:23,001 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:23,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:23,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1503413770, now seen corresponding path program 1 times [2024-11-22 01:51:23,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:23,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502949663] [2024-11-22 01:51:23,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:23,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:23,134 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-22 01:51:23,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:23,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502949663] [2024-11-22 01:51:23,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502949663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:23,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:23,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 01:51:23,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340641873] [2024-11-22 01:51:23,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:23,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 01:51:23,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:23,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 01:51:23,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:51:23,139 INFO L87 Difference]: Start difference. First operand 1532 states and 2255 transitions. Second operand has 9 states, 7 states have (on average 19.571428571428573) internal successors, (137), 8 states have internal predecessors, (137), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-22 01:51:23,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:23,277 INFO L93 Difference]: Finished difference Result 2947 states and 4374 transitions. [2024-11-22 01:51:23,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:51:23,278 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 19.571428571428573) internal successors, (137), 8 states have internal predecessors, (137), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 230 [2024-11-22 01:51:23,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:23,286 INFO L225 Difference]: With dead ends: 2947 [2024-11-22 01:51:23,286 INFO L226 Difference]: Without dead ends: 1536 [2024-11-22 01:51:23,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:51:23,290 INFO L432 NwaCegarLoop]: 827 mSDtfsCounter, 4 mSDsluCounter, 5759 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:23,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6586 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:51:23,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2024-11-22 01:51:23,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1536. [2024-11-22 01:51:23,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1174 states have (on average 1.485519591141397) internal successors, (1744), 1208 states have internal predecessors, (1744), 246 states have call successors, (246), 113 states have call predecessors, (246), 115 states have return successors, (277), 231 states have call predecessors, (277), 236 states have call successors, (277) [2024-11-22 01:51:23,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 2267 transitions. [2024-11-22 01:51:23,356 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 2267 transitions. Word has length 230 [2024-11-22 01:51:23,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:23,357 INFO L471 AbstractCegarLoop]: Abstraction has 1536 states and 2267 transitions. [2024-11-22 01:51:23,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 19.571428571428573) internal successors, (137), 8 states have internal predecessors, (137), 4 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2024-11-22 01:51:23,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 2267 transitions. [2024-11-22 01:51:23,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-22 01:51:23,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:23,363 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:23,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:51:23,363 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:23,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:23,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1090870458, now seen corresponding path program 1 times [2024-11-22 01:51:23,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:23,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790662264] [2024-11-22 01:51:23,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:23,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:23,471 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:23,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:23,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790662264] [2024-11-22 01:51:23,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790662264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 01:51:23,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125667971] [2024-11-22 01:51:23,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:23,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:23,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:51:23,473 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 01:51:23,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-22 01:51:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:23,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 1668 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-22 01:51:23,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 01:51:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:23,980 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 01:51:24,111 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:24,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125667971] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 01:51:24,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 01:51:24,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-22 01:51:24,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023294115] [2024-11-22 01:51:24,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 01:51:24,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:51:24,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:24,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:51:24,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:51:24,117 INFO L87 Difference]: Start difference. First operand 1536 states and 2267 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-22 01:51:24,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:24,305 INFO L93 Difference]: Finished difference Result 3495 states and 5295 transitions. [2024-11-22 01:51:24,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:51:24,306 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 238 [2024-11-22 01:51:24,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:24,318 INFO L225 Difference]: With dead ends: 3495 [2024-11-22 01:51:24,318 INFO L226 Difference]: Without dead ends: 2662 [2024-11-22 01:51:24,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:51:24,322 INFO L432 NwaCegarLoop]: 885 mSDtfsCounter, 762 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:24,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 2279 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:51:24,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2024-11-22 01:51:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2614. [2024-11-22 01:51:24,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2614 states, 2094 states have (on average 1.524355300859599) internal successors, (3192), 2128 states have internal predecessors, (3192), 404 states have call successors, (404), 113 states have call predecessors, (404), 115 states have return successors, (455), 389 states have call predecessors, (455), 394 states have call successors, (455) [2024-11-22 01:51:24,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2614 states to 2614 states and 4051 transitions. [2024-11-22 01:51:24,405 INFO L78 Accepts]: Start accepts. Automaton has 2614 states and 4051 transitions. Word has length 238 [2024-11-22 01:51:24,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:24,405 INFO L471 AbstractCegarLoop]: Abstraction has 2614 states and 4051 transitions. [2024-11-22 01:51:24,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 7 states have internal predecessors, (189), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-22 01:51:24,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2614 states and 4051 transitions. [2024-11-22 01:51:24,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-22 01:51:24,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:24,414 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:24,426 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-22 01:51:24,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 01:51:24,616 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:24,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:24,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1681324580, now seen corresponding path program 1 times [2024-11-22 01:51:24,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:24,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145978729] [2024-11-22 01:51:24,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:24,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:24,693 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:24,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:24,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145978729] [2024-11-22 01:51:24,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145978729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:24,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:24,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:51:24,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920127310] [2024-11-22 01:51:24,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:24,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:24,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:24,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:24,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:24,695 INFO L87 Difference]: Start difference. First operand 2614 states and 4051 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-22 01:51:24,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:24,766 INFO L93 Difference]: Finished difference Result 6009 states and 9443 transitions. [2024-11-22 01:51:24,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:24,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 242 [2024-11-22 01:51:24,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:24,792 INFO L225 Difference]: With dead ends: 6009 [2024-11-22 01:51:24,792 INFO L226 Difference]: Without dead ends: 3632 [2024-11-22 01:51:24,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:24,799 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 163 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:24,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1688 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:24,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2024-11-22 01:51:24,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3616. [2024-11-22 01:51:24,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3616 states, 2938 states have (on average 1.5330156569094622) internal successors, (4504), 2972 states have internal predecessors, (4504), 562 states have call successors, (562), 113 states have call predecessors, (562), 115 states have return successors, (633), 547 states have call predecessors, (633), 552 states have call successors, (633) [2024-11-22 01:51:24,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 5699 transitions. [2024-11-22 01:51:24,922 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 5699 transitions. Word has length 242 [2024-11-22 01:51:24,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:24,922 INFO L471 AbstractCegarLoop]: Abstraction has 3616 states and 5699 transitions. [2024-11-22 01:51:24,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-22 01:51:24,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 5699 transitions. [2024-11-22 01:51:24,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-22 01:51:24,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:24,936 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:24,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 01:51:24,937 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:24,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:24,937 INFO L85 PathProgramCache]: Analyzing trace with hash 2044325645, now seen corresponding path program 1 times [2024-11-22 01:51:24,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:24,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431077239] [2024-11-22 01:51:24,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:24,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:25,088 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:25,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:25,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431077239] [2024-11-22 01:51:25,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431077239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:25,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:25,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:51:25,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315169968] [2024-11-22 01:51:25,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:25,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:25,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:25,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:25,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:25,091 INFO L87 Difference]: Start difference. First operand 3616 states and 5699 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-22 01:51:25,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:25,193 INFO L93 Difference]: Finished difference Result 8503 states and 13525 transitions. [2024-11-22 01:51:25,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:25,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 236 [2024-11-22 01:51:25,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:25,213 INFO L225 Difference]: With dead ends: 8503 [2024-11-22 01:51:25,213 INFO L226 Difference]: Without dead ends: 5250 [2024-11-22 01:51:25,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:25,225 INFO L432 NwaCegarLoop]: 845 mSDtfsCounter, 161 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:25,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1678 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:25,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5250 states. [2024-11-22 01:51:25,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5250 to 5234. [2024-11-22 01:51:25,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5234 states, 4318 states have (on average 1.5433070866141732) internal successors, (6664), 4352 states have internal predecessors, (6664), 800 states have call successors, (800), 113 states have call predecessors, (800), 115 states have return successors, (871), 785 states have call predecessors, (871), 790 states have call successors, (871) [2024-11-22 01:51:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5234 states to 5234 states and 8335 transitions. [2024-11-22 01:51:25,395 INFO L78 Accepts]: Start accepts. Automaton has 5234 states and 8335 transitions. Word has length 236 [2024-11-22 01:51:25,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:25,395 INFO L471 AbstractCegarLoop]: Abstraction has 5234 states and 8335 transitions. [2024-11-22 01:51:25,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-22 01:51:25,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5234 states and 8335 transitions. [2024-11-22 01:51:25,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2024-11-22 01:51:25,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:25,422 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:25,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 01:51:25,422 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:25,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:25,423 INFO L85 PathProgramCache]: Analyzing trace with hash -2012080811, now seen corresponding path program 1 times [2024-11-22 01:51:25,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:25,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674782207] [2024-11-22 01:51:25,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:25,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:25,512 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:25,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:25,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674782207] [2024-11-22 01:51:25,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674782207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:25,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:25,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:51:25,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023810708] [2024-11-22 01:51:25,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:25,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:25,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:25,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:25,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:25,515 INFO L87 Difference]: Start difference. First operand 5234 states and 8335 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-22 01:51:25,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:25,803 INFO L93 Difference]: Finished difference Result 12301 states and 19771 transitions. [2024-11-22 01:51:25,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:25,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 244 [2024-11-22 01:51:25,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:25,840 INFO L225 Difference]: With dead ends: 12301 [2024-11-22 01:51:25,840 INFO L226 Difference]: Without dead ends: 7744 [2024-11-22 01:51:25,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:25,860 INFO L432 NwaCegarLoop]: 841 mSDtfsCounter, 159 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:25,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1671 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:25,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7744 states. [2024-11-22 01:51:26,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7744 to 7728. [2024-11-22 01:51:26,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7728 states, 6488 states have (on average 1.5524044389642417) internal successors, (10072), 6522 states have internal predecessors, (10072), 1124 states have call successors, (1124), 113 states have call predecessors, (1124), 115 states have return successors, (1227), 1109 states have call predecessors, (1227), 1114 states have call successors, (1227) [2024-11-22 01:51:26,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7728 states to 7728 states and 12423 transitions. [2024-11-22 01:51:26,240 INFO L78 Accepts]: Start accepts. Automaton has 7728 states and 12423 transitions. Word has length 244 [2024-11-22 01:51:26,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:26,241 INFO L471 AbstractCegarLoop]: Abstraction has 7728 states and 12423 transitions. [2024-11-22 01:51:26,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-22 01:51:26,241 INFO L276 IsEmpty]: Start isEmpty. Operand 7728 states and 12423 transitions. [2024-11-22 01:51:26,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-22 01:51:26,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:26,268 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:26,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 01:51:26,270 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:26,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:26,271 INFO L85 PathProgramCache]: Analyzing trace with hash -293002603, now seen corresponding path program 1 times [2024-11-22 01:51:26,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:26,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303965453] [2024-11-22 01:51:26,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:26,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:26,381 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:26,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:26,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303965453] [2024-11-22 01:51:26,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303965453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:26,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:26,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:51:26,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729981146] [2024-11-22 01:51:26,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:26,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:26,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:26,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:26,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:26,385 INFO L87 Difference]: Start difference. First operand 7728 states and 12423 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-22 01:51:26,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:26,717 INFO L93 Difference]: Finished difference Result 18305 states and 29675 transitions. [2024-11-22 01:51:26,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:26,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 238 [2024-11-22 01:51:26,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:26,822 INFO L225 Difference]: With dead ends: 18305 [2024-11-22 01:51:26,825 INFO L226 Difference]: Without dead ends: 11772 [2024-11-22 01:51:26,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:26,877 INFO L432 NwaCegarLoop]: 841 mSDtfsCounter, 157 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:26,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1671 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:26,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11772 states. [2024-11-22 01:51:27,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11772 to 11756. [2024-11-22 01:51:27,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11756 states, 10026 states have (on average 1.5603431079194094) internal successors, (15644), 10060 states have internal predecessors, (15644), 1614 states have call successors, (1614), 113 states have call predecessors, (1614), 115 states have return successors, (1769), 1599 states have call predecessors, (1769), 1604 states have call successors, (1769) [2024-11-22 01:51:27,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11756 states to 11756 states and 19027 transitions. [2024-11-22 01:51:27,489 INFO L78 Accepts]: Start accepts. Automaton has 11756 states and 19027 transitions. Word has length 238 [2024-11-22 01:51:27,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:27,490 INFO L471 AbstractCegarLoop]: Abstraction has 11756 states and 19027 transitions. [2024-11-22 01:51:27,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-22 01:51:27,490 INFO L276 IsEmpty]: Start isEmpty. Operand 11756 states and 19027 transitions. [2024-11-22 01:51:27,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-22 01:51:27,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:27,522 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:27,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 01:51:27,523 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:27,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:27,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2146472160, now seen corresponding path program 1 times [2024-11-22 01:51:27,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:27,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650895829] [2024-11-22 01:51:27,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:27,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:27,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:27,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650895829] [2024-11-22 01:51:27,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650895829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:27,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:27,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:51:27,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905053614] [2024-11-22 01:51:27,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:27,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:27,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:27,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:27,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:27,608 INFO L87 Difference]: Start difference. First operand 11756 states and 19027 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-22 01:51:28,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:28,135 INFO L93 Difference]: Finished difference Result 28291 states and 46071 transitions. [2024-11-22 01:51:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:28,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 246 [2024-11-22 01:51:28,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:28,197 INFO L225 Difference]: With dead ends: 28291 [2024-11-22 01:51:28,197 INFO L226 Difference]: Without dead ends: 18522 [2024-11-22 01:51:28,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:28,220 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 155 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:28,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1687 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:28,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18522 states. [2024-11-22 01:51:28,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18522 to 18506. [2024-11-22 01:51:28,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18506 states, 15790 states have (on average 1.5574414186193795) internal successors, (24592), 15824 states have internal predecessors, (24592), 2600 states have call successors, (2600), 113 states have call predecessors, (2600), 115 states have return successors, (2843), 2585 states have call predecessors, (2843), 2590 states have call successors, (2843) [2024-11-22 01:51:29,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18506 states to 18506 states and 30035 transitions. [2024-11-22 01:51:29,085 INFO L78 Accepts]: Start accepts. Automaton has 18506 states and 30035 transitions. Word has length 246 [2024-11-22 01:51:29,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:29,086 INFO L471 AbstractCegarLoop]: Abstraction has 18506 states and 30035 transitions. [2024-11-22 01:51:29,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-22 01:51:29,087 INFO L276 IsEmpty]: Start isEmpty. Operand 18506 states and 30035 transitions. [2024-11-22 01:51:29,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-22 01:51:29,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:29,227 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:29,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 01:51:29,228 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:29,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:29,228 INFO L85 PathProgramCache]: Analyzing trace with hash 995134555, now seen corresponding path program 1 times [2024-11-22 01:51:29,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:29,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98591842] [2024-11-22 01:51:29,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:29,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:29,414 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:29,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:29,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98591842] [2024-11-22 01:51:29,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98591842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:29,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:29,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:51:29,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560796455] [2024-11-22 01:51:29,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:29,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:29,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:29,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:29,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:29,421 INFO L87 Difference]: Start difference. First operand 18506 states and 30035 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-22 01:51:30,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:30,694 INFO L93 Difference]: Finished difference Result 46197 states and 75601 transitions. [2024-11-22 01:51:30,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:30,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 247 [2024-11-22 01:51:30,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:30,837 INFO L225 Difference]: With dead ends: 46197 [2024-11-22 01:51:30,837 INFO L226 Difference]: Without dead ends: 30670 [2024-11-22 01:51:30,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:30,890 INFO L432 NwaCegarLoop]: 843 mSDtfsCounter, 153 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1676 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:30,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1676 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:30,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30670 states. [2024-11-22 01:51:32,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30670 to 30654. [2024-11-22 01:51:32,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30654 states, 26294 states have (on average 1.5629421160721078) internal successors, (41096), 26328 states have internal predecessors, (41096), 4244 states have call successors, (4244), 113 states have call predecessors, (4244), 115 states have return successors, (4643), 4229 states have call predecessors, (4643), 4234 states have call successors, (4643) [2024-11-22 01:51:32,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30654 states to 30654 states and 49983 transitions. [2024-11-22 01:51:32,523 INFO L78 Accepts]: Start accepts. Automaton has 30654 states and 49983 transitions. Word has length 247 [2024-11-22 01:51:32,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:32,524 INFO L471 AbstractCegarLoop]: Abstraction has 30654 states and 49983 transitions. [2024-11-22 01:51:32,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-22 01:51:32,524 INFO L276 IsEmpty]: Start isEmpty. Operand 30654 states and 49983 transitions. [2024-11-22 01:51:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2024-11-22 01:51:32,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:32,586 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:32,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 01:51:32,587 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:32,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:32,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1472016354, now seen corresponding path program 1 times [2024-11-22 01:51:32,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:32,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423999094] [2024-11-22 01:51:32,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:32,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:32,642 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:32,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:32,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423999094] [2024-11-22 01:51:32,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423999094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:32,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:32,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:51:32,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986568055] [2024-11-22 01:51:32,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:32,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:32,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:32,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:32,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:32,643 INFO L87 Difference]: Start difference. First operand 30654 states and 49983 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-22 01:51:33,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:33,865 INFO L93 Difference]: Finished difference Result 73815 states and 119807 transitions. [2024-11-22 01:51:33,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:33,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 241 [2024-11-22 01:51:33,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:34,025 INFO L225 Difference]: With dead ends: 73815 [2024-11-22 01:51:34,025 INFO L226 Difference]: Without dead ends: 48408 [2024-11-22 01:51:34,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:34,082 INFO L432 NwaCegarLoop]: 848 mSDtfsCounter, 151 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:34,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1652 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:34,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48408 states. [2024-11-22 01:51:35,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48408 to 48392. [2024-11-22 01:51:35,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48392 states, 41626 states have (on average 1.5358670061980493) internal successors, (63932), 41660 states have internal predecessors, (63932), 6650 states have call successors, (6650), 113 states have call predecessors, (6650), 115 states have return successors, (7337), 6635 states have call predecessors, (7337), 6640 states have call successors, (7337) [2024-11-22 01:51:36,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48392 states to 48392 states and 77919 transitions. [2024-11-22 01:51:36,059 INFO L78 Accepts]: Start accepts. Automaton has 48392 states and 77919 transitions. Word has length 241 [2024-11-22 01:51:36,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:36,062 INFO L471 AbstractCegarLoop]: Abstraction has 48392 states and 77919 transitions. [2024-11-22 01:51:36,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-22 01:51:36,062 INFO L276 IsEmpty]: Start isEmpty. Operand 48392 states and 77919 transitions. [2024-11-22 01:51:36,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-22 01:51:36,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:36,198 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:36,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 01:51:36,198 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:36,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:36,199 INFO L85 PathProgramCache]: Analyzing trace with hash 790000307, now seen corresponding path program 1 times [2024-11-22 01:51:36,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:36,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33049056] [2024-11-22 01:51:36,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:36,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:36,293 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:36,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:36,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33049056] [2024-11-22 01:51:36,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33049056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:36,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:36,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:51:36,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064671185] [2024-11-22 01:51:36,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:36,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:36,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:36,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:36,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:36,295 INFO L87 Difference]: Start difference. First operand 48392 states and 77919 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-22 01:51:38,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:38,925 INFO L93 Difference]: Finished difference Result 127521 states and 206103 transitions. [2024-11-22 01:51:38,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:38,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 249 [2024-11-22 01:51:38,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:39,306 INFO L225 Difference]: With dead ends: 127521 [2024-11-22 01:51:39,307 INFO L226 Difference]: Without dead ends: 86000 [2024-11-22 01:51:39,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:39,414 INFO L432 NwaCegarLoop]: 841 mSDtfsCounter, 149 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:39,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1675 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:39,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86000 states. [2024-11-22 01:51:42,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86000 to 85984. [2024-11-22 01:51:42,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85984 states, 74318 states have (on average 1.535724858042466) internal successors, (114132), 74352 states have internal predecessors, (114132), 11550 states have call successors, (11550), 113 states have call predecessors, (11550), 115 states have return successors, (12785), 11535 states have call predecessors, (12785), 11540 states have call successors, (12785) [2024-11-22 01:51:43,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85984 states to 85984 states and 138467 transitions. [2024-11-22 01:51:43,307 INFO L78 Accepts]: Start accepts. Automaton has 85984 states and 138467 transitions. Word has length 249 [2024-11-22 01:51:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:43,310 INFO L471 AbstractCegarLoop]: Abstraction has 85984 states and 138467 transitions. [2024-11-22 01:51:43,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-22 01:51:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand 85984 states and 138467 transitions. [2024-11-22 01:51:43,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-11-22 01:51:43,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:43,521 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:43,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 01:51:43,522 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:43,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:43,522 INFO L85 PathProgramCache]: Analyzing trace with hash -465903851, now seen corresponding path program 1 times [2024-11-22 01:51:43,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:43,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512236256] [2024-11-22 01:51:43,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:43,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:43,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:43,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512236256] [2024-11-22 01:51:43,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512236256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:43,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:43,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:51:43,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795351413] [2024-11-22 01:51:43,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:43,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:43,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:43,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:43,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:43,673 INFO L87 Difference]: Start difference. First operand 85984 states and 138467 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-22 01:51:47,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:51:47,589 INFO L93 Difference]: Finished difference Result 232845 states and 376947 transitions. [2024-11-22 01:51:47,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:51:47,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 243 [2024-11-22 01:51:47,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:51:48,174 INFO L225 Difference]: With dead ends: 232845 [2024-11-22 01:51:48,174 INFO L226 Difference]: Without dead ends: 156084 [2024-11-22 01:51:48,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:48,318 INFO L432 NwaCegarLoop]: 844 mSDtfsCounter, 147 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1677 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:51:48,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1677 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:51:48,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156084 states. [2024-11-22 01:51:53,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156084 to 156068. [2024-11-22 01:51:54,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156068 states, 135376 states have (on average 1.539238860654769) internal successors, (208376), 135410 states have internal predecessors, (208376), 20576 states have call successors, (20576), 113 states have call predecessors, (20576), 115 states have return successors, (22875), 20561 states have call predecessors, (22875), 20566 states have call successors, (22875) [2024-11-22 01:51:54,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156068 states to 156068 states and 251827 transitions. [2024-11-22 01:51:54,914 INFO L78 Accepts]: Start accepts. Automaton has 156068 states and 251827 transitions. Word has length 243 [2024-11-22 01:51:54,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:51:54,915 INFO L471 AbstractCegarLoop]: Abstraction has 156068 states and 251827 transitions. [2024-11-22 01:51:54,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-11-22 01:51:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 156068 states and 251827 transitions. [2024-11-22 01:51:55,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-22 01:51:55,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:51:55,476 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:51:55,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 01:51:55,476 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:51:55,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:51:55,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1640284947, now seen corresponding path program 1 times [2024-11-22 01:51:55,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:51:55,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265630135] [2024-11-22 01:51:55,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:51:55,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:51:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:51:56,268 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-22 01:51:56,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:51:56,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265630135] [2024-11-22 01:51:56,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265630135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:51:56,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:51:56,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 01:51:56,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280669202] [2024-11-22 01:51:56,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:51:56,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 01:51:56,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:51:56,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 01:51:56,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:51:56,270 INFO L87 Difference]: Start difference. First operand 156068 states and 251827 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-22 01:52:02,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:52:02,650 INFO L93 Difference]: Finished difference Result 291767 states and 472331 transitions. [2024-11-22 01:52:02,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 01:52:02,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 251 [2024-11-22 01:52:02,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:52:04,674 INFO L225 Difference]: With dead ends: 291767 [2024-11-22 01:52:04,675 INFO L226 Difference]: Without dead ends: 290934 [2024-11-22 01:52:04,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 01:52:04,788 INFO L432 NwaCegarLoop]: 850 mSDtfsCounter, 141 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 01:52:04,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1690 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 01:52:04,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290934 states. [2024-11-22 01:52:15,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290934 to 290918. [2024-11-22 01:52:16,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290918 states, 253490 states have (on average 1.5382776440885242) internal successors, (389938), 253524 states have internal predecessors, (389938), 37312 states have call successors, (37312), 113 states have call predecessors, (37312), 115 states have return successors, (41703), 37297 states have call predecessors, (41703), 37302 states have call successors, (41703) [2024-11-22 01:52:17,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290918 states to 290918 states and 468953 transitions.