./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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-dev-84cfde4 [2024-10-11 02:41:55,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 02:41:55,468 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 02:41:55,474 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 02:41:55,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 02:41:55,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 02:41:55,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 02:41:55,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 02:41:55,504 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 02:41:55,507 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 02:41:55,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 02:41:55,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 02:41:55,508 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 02:41:55,509 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 02:41:55,509 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 02:41:55,509 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 02:41:55,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 02:41:55,509 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 02:41:55,510 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 02:41:55,510 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 02:41:55,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 02:41:55,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 02:41:55,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 02:41:55,513 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 02:41:55,513 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 02:41:55,514 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 02:41:55,514 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 02:41:55,514 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 02:41:55,514 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 02:41:55,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 02:41:55,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 02:41:55,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 02:41:55,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:41:55,515 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 02:41:55,515 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 02:41:55,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 02:41:55,516 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 02:41:55,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 02:41:55,517 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 02:41:55,517 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 02:41:55,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 02:41:55,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 02:41:55,518 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b548755c8e9cfcfe9ed8b47fb1ac823ac6821056e7770bffa975fdbf413b243 [2024-10-11 02:41:55,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 02:41:55,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 02:41:55,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 02:41:55,789 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 02:41:55,789 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 02:41:55,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2024-10-11 02:41:57,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 02:41:57,569 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 02:41:57,570 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c [2024-10-11 02:41:57,596 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/76423e82e/90e167a8447b4ae8b4ca3c265b548168/FLAG9c2f11279 [2024-10-11 02:41:57,803 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/76423e82e/90e167a8447b4ae8b4ca3c265b548168 [2024-10-11 02:41:57,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 02:41:57,808 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 02:41:57,810 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 02:41:57,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 02:41:57,814 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 02:41:57,814 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:41:57" (1/1) ... [2024-10-11 02:41:57,815 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@534752d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:57, skipping insertion in model container [2024-10-11 02:41:57,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:41:57" (1/1) ... [2024-10-11 02:41:57,871 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 02:41:58,226 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2024-10-11 02:41:58,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:41:58,509 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 02:41:58,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-10-11 02:41:58,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [168] [2024-10-11 02:41:58,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [751] [2024-10-11 02:41:58,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [768] [2024-10-11 02:41:58,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [777] [2024-10-11 02:41:58,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1848] [2024-10-11 02:41:58,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2247] [2024-10-11 02:41:58,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2608] [2024-10-11 02:41:58,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2874] [2024-10-11 02:41:58,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2893] [2024-10-11 02:41:58,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3097] [2024-10-11 02:41:58,551 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_productSimulator.cil.c[14867,14880] [2024-10-11 02:41:58,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:41:58,693 INFO L204 MainTranslator]: Completed translation [2024-10-11 02:41:58,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58 WrapperNode [2024-10-11 02:41:58,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 02:41:58,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 02:41:58,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 02:41:58,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 02:41:58,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (1/1) ... [2024-10-11 02:41:58,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (1/1) ... [2024-10-11 02:41:58,812 INFO L138 Inliner]: procedures = 151, calls = 262, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1308 [2024-10-11 02:41:58,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 02:41:58,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 02:41:58,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 02:41:58,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 02:41:58,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (1/1) ... [2024-10-11 02:41:58,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (1/1) ... [2024-10-11 02:41:58,840 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (1/1) ... [2024-10-11 02:41:58,871 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-11 02:41:58,871 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (1/1) ... [2024-10-11 02:41:58,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (1/1) ... [2024-10-11 02:41:58,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (1/1) ... [2024-10-11 02:41:58,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (1/1) ... [2024-10-11 02:41:58,922 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (1/1) ... [2024-10-11 02:41:58,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (1/1) ... [2024-10-11 02:41:58,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 02:41:58,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 02:41:58,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 02:41:58,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 02:41:58,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (1/1) ... [2024-10-11 02:41:58,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:41:58,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:41:58,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 02:41:58,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 02:41:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-10-11 02:41:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-10-11 02:41:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2024-10-11 02:41:59,033 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2024-10-11 02:41:59,033 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2024-10-11 02:41:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2024-10-11 02:41:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-10-11 02:41:59,034 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-10-11 02:41:59,034 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-11 02:41:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-11 02:41:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-10-11 02:41:59,035 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-10-11 02:41:59,035 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-11 02:41:59,036 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-11 02:41:59,036 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2024-10-11 02:41:59,036 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2024-10-11 02:41:59,037 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-11 02:41:59,037 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-11 02:41:59,038 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2024-10-11 02:41:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2024-10-11 02:41:59,038 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-11 02:41:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-11 02:41:59,038 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-11 02:41:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-11 02:41:59,038 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-11 02:41:59,038 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-11 02:41:59,038 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2024-10-11 02:41:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2024-10-11 02:41:59,039 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2024-10-11 02:41:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2024-10-11 02:41:59,039 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-11 02:41:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-11 02:41:59,039 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-11 02:41:59,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-11 02:41:59,040 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-11 02:41:59,040 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-11 02:41:59,040 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2024-10-11 02:41:59,040 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2024-10-11 02:41:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-11 02:41:59,041 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-11 02:41:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-10-11 02:41:59,041 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-10-11 02:41:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-11 02:41:59,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-11 02:41:59,041 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2024-10-11 02:41:59,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2024-10-11 02:41:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 02:41:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-11 02:41:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-11 02:41:59,042 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-11 02:41:59,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-11 02:41:59,043 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2024-10-11 02:41:59,043 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2024-10-11 02:41:59,043 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2024-10-11 02:41:59,043 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2024-10-11 02:41:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2024-10-11 02:41:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2024-10-11 02:41:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-10-11 02:41:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-10-11 02:41:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-11 02:41:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-11 02:41:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-11 02:41:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-11 02:41:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-11 02:41:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-11 02:41:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-11 02:41:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-11 02:41:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-11 02:41:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-11 02:41:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-11 02:41:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-11 02:41:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2024-10-11 02:41:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2024-10-11 02:41:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2024-10-11 02:41:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2024-10-11 02:41:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-11 02:41:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-11 02:41:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-11 02:41:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-11 02:41:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 02:41:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 02:41:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 02:41:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 02:41:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-11 02:41:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-11 02:41:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2024-10-11 02:41:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2024-10-11 02:41:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2024-10-11 02:41:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2024-10-11 02:41:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-10-11 02:41:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-10-11 02:41:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 02:41:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 02:41:59,310 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 02:41:59,314 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 02:42:00,518 INFO L? ?]: Removed 623 outVars from TransFormulas that were not future-live. [2024-10-11 02:42:00,518 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 02:42:00,607 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 02:42:00,607 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 02:42:00,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:42:00 BoogieIcfgContainer [2024-10-11 02:42:00,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 02:42:00,609 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 02:42:00,609 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 02:42:00,614 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 02:42:00,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:41:57" (1/3) ... [2024-10-11 02:42:00,616 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e04c4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:42:00, skipping insertion in model container [2024-10-11 02:42:00,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:41:58" (2/3) ... [2024-10-11 02:42:00,617 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e04c4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:42:00, skipping insertion in model container [2024-10-11 02:42:00,617 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:42:00" (3/3) ... [2024-10-11 02:42:00,619 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_productSimulator.cil.c [2024-10-11 02:42:00,635 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 02:42:00,636 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 02:42:00,719 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 02:42:00,729 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;@3a346e1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 02:42:00,729 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 02:42:00,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 571 states, 417 states have (on average 1.5515587529976018) internal successors, (647), 437 states have internal predecessors, (647), 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) [2024-10-11 02:42:00,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-11 02:42:00,774 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:00,775 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:42:00,776 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:00,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:00,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1347415236, now seen corresponding path program 1 times [2024-10-11 02:42:00,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:00,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256173412] [2024-10-11 02:42:00,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:00,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:01,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 02:42:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:42:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 02:42:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:42:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:42:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:42:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 02:42:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 02:42:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 02:42:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 02:42:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:01,567 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-10-11 02:42:01,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:01,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256173412] [2024-10-11 02:42:01,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256173412] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:01,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:01,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 02:42:01,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697107203] [2024-10-11 02:42:01,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:01,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:42:01,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:01,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:42:01,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:42:01,606 INFO L87 Difference]: Start difference. First operand has 571 states, 417 states have (on average 1.5515587529976018) internal successors, (647), 437 states have internal predecessors, (647), 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 8 states, 8 states have (on average 9.375) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:04,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:04,904 INFO L93 Difference]: Finished difference Result 1306 states and 2063 transitions. [2024-10-11 02:42:04,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 02:42:04,908 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (30), 6 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 147 [2024-10-11 02:42:04,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:04,936 INFO L225 Difference]: With dead ends: 1306 [2024-10-11 02:42:04,936 INFO L226 Difference]: Without dead ends: 764 [2024-10-11 02:42:04,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:42:04,952 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 1366 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 2885 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 3508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 2885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:04,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 1622 Invalid, 3508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 2885 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-11 02:42:04,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-10-11 02:42:05,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 568. [2024-10-11 02:42:05,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 415 states have (on average 1.5253012048192771) internal successors, (633), 434 states have internal predecessors, (633), 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) [2024-10-11 02:42:05,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 850 transitions. [2024-10-11 02:42:05,112 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 850 transitions. Word has length 147 [2024-10-11 02:42:05,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:05,114 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 850 transitions. [2024-10-11 02:42:05,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:05,115 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 850 transitions. [2024-10-11 02:42:05,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-11 02:42:05,127 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:05,127 INFO L215 NwaCegarLoop]: trace histogram [8, 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] [2024-10-11 02:42:05,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 02:42:05,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:05,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:05,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1023817219, now seen corresponding path program 1 times [2024-10-11 02:42:05,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:05,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141236532] [2024-10-11 02:42:05,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:05,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 02:42:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 02:42:05,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 02:42:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 02:42:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 02:42:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 02:42:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 02:42:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 02:42:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 02:42:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:05,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:05,639 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-10-11 02:42:05,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:05,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141236532] [2024-10-11 02:42:05,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141236532] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:42:05,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324309731] [2024-10-11 02:42:05,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:05,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:42:05,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:42:05,645 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:42:05,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 02:42:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 02:42:06,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:42:06,055 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-11 02:42:06,055 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:42:06,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324309731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:06,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:42:06,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2024-10-11 02:42:06,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711304623] [2024-10-11 02:42:06,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:06,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:42:06,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:06,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:42:06,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:42:06,060 INFO L87 Difference]: Start difference. First operand 568 states and 850 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-11 02:42:06,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:06,165 INFO L93 Difference]: Finished difference Result 880 states and 1292 transitions. [2024-10-11 02:42:06,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:42:06,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 165 [2024-10-11 02:42:06,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:06,174 INFO L225 Difference]: With dead ends: 880 [2024-10-11 02:42:06,174 INFO L226 Difference]: Without dead ends: 570 [2024-10-11 02:42:06,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:42:06,177 INFO L432 NwaCegarLoop]: 829 mSDtfsCounter, 0 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1657 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:06,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1657 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:42:06,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-10-11 02:42:06,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2024-10-11 02:42:06,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 417 states have (on average 1.5227817745803358) internal successors, (635), 436 states have internal predecessors, (635), 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) [2024-10-11 02:42:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 852 transitions. [2024-10-11 02:42:06,276 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 852 transitions. Word has length 165 [2024-10-11 02:42:06,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:06,278 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 852 transitions. [2024-10-11 02:42:06,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-10-11 02:42:06,278 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 852 transitions. [2024-10-11 02:42:06,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-11 02:42:06,285 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:06,285 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:42:06,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 02:42:06,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:42:06,487 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:06,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:06,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1317222946, now seen corresponding path program 1 times [2024-10-11 02:42:06,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:06,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112939698] [2024-10-11 02:42:06,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:06,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:06,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:06,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 02:42:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 02:42:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 02:42:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 02:42:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 02:42:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 02:42:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 02:42:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-11 02:42:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:06,870 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-11 02:42:06,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:06,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112939698] [2024-10-11 02:42:06,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112939698] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:42:06,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650538787] [2024-10-11 02:42:06,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:06,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:42:06,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:42:06,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:42:06,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 02:42:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:07,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 1358 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 02:42:07,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:42:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-10-11 02:42:07,357 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:42:07,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650538787] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:07,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:42:07,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-10-11 02:42:07,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933981978] [2024-10-11 02:42:07,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:07,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:42:07,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:07,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:42:07,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:42:07,360 INFO L87 Difference]: Start difference. First operand 570 states and 852 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 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) [2024-10-11 02:42:07,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:07,562 INFO L93 Difference]: Finished difference Result 1092 states and 1638 transitions. [2024-10-11 02:42:07,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 02:42:07,563 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 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 159 [2024-10-11 02:42:07,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:07,567 INFO L225 Difference]: With dead ends: 1092 [2024-10-11 02:42:07,567 INFO L226 Difference]: Without dead ends: 575 [2024-10-11 02:42:07,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:42:07,570 INFO L432 NwaCegarLoop]: 817 mSDtfsCounter, 4 mSDsluCounter, 4067 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:07,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4884 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:42:07,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2024-10-11 02:42:07,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 574. [2024-10-11 02:42:07,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 419 states have (on average 1.5202863961813842) internal successors, (637), 439 states have internal predecessors, (637), 109 states have call successors, (109), 43 states have call predecessors, (109), 45 states have return successors, (112), 108 states have call predecessors, (112), 108 states have call successors, (112) [2024-10-11 02:42:07,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 858 transitions. [2024-10-11 02:42:07,615 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 858 transitions. Word has length 159 [2024-10-11 02:42:07,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:07,616 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 858 transitions. [2024-10-11 02:42:07,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 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) [2024-10-11 02:42:07,616 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 858 transitions. [2024-10-11 02:42:07,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-11 02:42:07,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:07,619 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:42:07,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 02:42:07,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:42:07,824 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:07,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:07,825 INFO L85 PathProgramCache]: Analyzing trace with hash -337691986, now seen corresponding path program 1 times [2024-10-11 02:42:07,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:07,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955718308] [2024-10-11 02:42:07,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:07,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:08,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:42:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:42:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 02:42:08,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 02:42:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 02:42:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 02:42:08,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-10-11 02:42:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:08,226 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-11 02:42:08,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:08,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955718308] [2024-10-11 02:42:08,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955718308] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:08,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:08,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 02:42:08,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365731981] [2024-10-11 02:42:08,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:08,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 02:42:08,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:08,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 02:42:08,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:42:08,229 INFO L87 Difference]: Start difference. First operand 574 states and 858 transitions. Second operand has 11 states, 10 states have (on average 9.1) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-11 02:42:11,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:11,890 INFO L93 Difference]: Finished difference Result 1274 states and 1970 transitions. [2024-10-11 02:42:11,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 02:42:11,891 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.1) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (30), 6 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 160 [2024-10-11 02:42:11,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:11,897 INFO L225 Difference]: With dead ends: 1274 [2024-10-11 02:42:11,897 INFO L226 Difference]: Without dead ends: 773 [2024-10-11 02:42:11,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2024-10-11 02:42:11,899 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 1377 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 5183 mSolverCounterSat, 631 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 5814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 5183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:11,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 2270 Invalid, 5814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 5183 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-11 02:42:11,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-10-11 02:42:11,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 576. [2024-10-11 02:42:11,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 420 states have (on average 1.519047619047619) internal successors, (638), 440 states have internal predecessors, (638), 109 states have call successors, (109), 43 states have call predecessors, (109), 46 states have return successors, (113), 109 states have call predecessors, (113), 108 states have call successors, (113) [2024-10-11 02:42:11,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 860 transitions. [2024-10-11 02:42:11,947 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 860 transitions. Word has length 160 [2024-10-11 02:42:11,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:11,947 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 860 transitions. [2024-10-11 02:42:11,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.1) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (30), 6 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2024-10-11 02:42:11,948 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 860 transitions. [2024-10-11 02:42:11,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-11 02:42:11,951 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:11,951 INFO L215 NwaCegarLoop]: trace histogram [8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:42:11,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 02:42:11,951 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:11,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:11,952 INFO L85 PathProgramCache]: Analyzing trace with hash 327764357, now seen corresponding path program 1 times [2024-10-11 02:42:11,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:11,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105186254] [2024-10-11 02:42:11,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:11,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:42:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 02:42:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 02:42:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 02:42:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 02:42:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 02:42:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 02:42:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-11 02:42:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-10-11 02:42:12,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:12,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105186254] [2024-10-11 02:42:12,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105186254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:12,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:12,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-11 02:42:12,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220745378] [2024-10-11 02:42:12,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:12,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 02:42:12,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:12,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 02:42:12,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:42:12,292 INFO L87 Difference]: Start difference. First operand 576 states and 860 transitions. Second operand has 11 states, 10 states have (on average 9.5) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-11 02:42:15,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:15,638 INFO L93 Difference]: Finished difference Result 1278 states and 1976 transitions. [2024-10-11 02:42:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-11 02:42:15,639 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 173 [2024-10-11 02:42:15,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:15,646 INFO L225 Difference]: With dead ends: 1278 [2024-10-11 02:42:15,646 INFO L226 Difference]: Without dead ends: 777 [2024-10-11 02:42:15,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2024-10-11 02:42:15,654 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 1370 mSDsluCounter, 1992 mSDsCounter, 0 mSdLazyCounter, 5267 mSolverCounterSat, 619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 2270 SdHoareTripleChecker+Invalid, 5886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 5267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:15,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1381 Valid, 2270 Invalid, 5886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [619 Valid, 5267 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-11 02:42:15,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-10-11 02:42:15,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 578. [2024-10-11 02:42:15,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 421 states have (on average 1.517814726840855) internal successors, (639), 442 states have internal predecessors, (639), 109 states have call successors, (109), 43 states have call predecessors, (109), 47 states have return successors, (116), 109 states have call predecessors, (116), 108 states have call successors, (116) [2024-10-11 02:42:15,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 864 transitions. [2024-10-11 02:42:15,735 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 864 transitions. Word has length 173 [2024-10-11 02:42:15,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:15,736 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 864 transitions. [2024-10-11 02:42:15,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (31), 6 states have call predecessors, (31), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-10-11 02:42:15,736 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 864 transitions. [2024-10-11 02:42:15,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-11 02:42:15,740 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:15,740 INFO L215 NwaCegarLoop]: trace histogram [8, 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] [2024-10-11 02:42:15,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 02:42:15,740 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:15,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:15,741 INFO L85 PathProgramCache]: Analyzing trace with hash 443814134, now seen corresponding path program 1 times [2024-10-11 02:42:15,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:15,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675847542] [2024-10-11 02:42:15,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:15,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:15,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:15,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:42:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 02:42:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 02:42:15,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 02:42:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 02:42:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 02:42:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-11 02:42:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-11 02:42:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:15,967 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-10-11 02:42:15,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:15,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675847542] [2024-10-11 02:42:15,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675847542] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:42:15,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33412619] [2024-10-11 02:42:15,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:15,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:42:15,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:42:15,971 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:42:15,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 02:42:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:16,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:42:16,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:42:16,409 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-10-11 02:42:16,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:42:16,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33412619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:16,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:42:16,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-11 02:42:16,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977432758] [2024-10-11 02:42:16,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:16,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:42:16,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:16,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:42:16,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:42:16,413 INFO L87 Difference]: Start difference. First operand 578 states and 864 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-10-11 02:42:16,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:16,560 INFO L93 Difference]: Finished difference Result 1404 states and 2108 transitions. [2024-10-11 02:42:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:42:16,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 174 [2024-10-11 02:42:16,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:16,569 INFO L225 Difference]: With dead ends: 1404 [2024-10-11 02:42:16,570 INFO L226 Difference]: Without dead ends: 1101 [2024-10-11 02:42:16,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:42:16,573 INFO L432 NwaCegarLoop]: 864 mSDtfsCounter, 717 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:16,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 1661 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:42:16,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1101 states. [2024-10-11 02:42:16,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1101 to 1099. [2024-10-11 02:42:16,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 804 states have (on average 1.5236318407960199) internal successors, (1225), 842 states have internal predecessors, (1225), 200 states have call successors, (200), 86 states have call predecessors, (200), 94 states have return successors, (227), 201 states have call predecessors, (227), 198 states have call successors, (227) [2024-10-11 02:42:16,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 1652 transitions. [2024-10-11 02:42:16,718 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 1652 transitions. Word has length 174 [2024-10-11 02:42:16,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:16,720 INFO L471 AbstractCegarLoop]: Abstraction has 1099 states and 1652 transitions. [2024-10-11 02:42:16,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2024-10-11 02:42:16,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 1652 transitions. [2024-10-11 02:42:16,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-11 02:42:16,725 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:16,725 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:42:16,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 02:42:16,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:42:16,926 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:16,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:16,926 INFO L85 PathProgramCache]: Analyzing trace with hash 148307849, now seen corresponding path program 1 times [2024-10-11 02:42:16,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:16,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011219540] [2024-10-11 02:42:16,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:16,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:17,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:17,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:42:17,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 02:42:17,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 02:42:17,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 02:42:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 02:42:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 02:42:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 02:42:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,126 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:17,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:17,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011219540] [2024-10-11 02:42:17,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011219540] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:42:17,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320869416] [2024-10-11 02:42:17,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:17,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:42:17,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:42:17,130 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:42:17,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 02:42:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:17,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 1361 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:42:17,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:42:17,484 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:17,487 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 02:42:17,629 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:17,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320869416] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 02:42:17,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 02:42:17,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-10-11 02:42:17,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127943160] [2024-10-11 02:42:17,631 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 02:42:17,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 02:42:17,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:17,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 02:42:17,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:42:17,633 INFO L87 Difference]: Start difference. First operand 1099 states and 1652 transitions. Second operand has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (50), 6 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-10-11 02:42:20,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:20,185 INFO L93 Difference]: Finished difference Result 2784 states and 4580 transitions. [2024-10-11 02:42:20,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-11 02:42:20,186 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (50), 6 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 162 [2024-10-11 02:42:20,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:20,201 INFO L225 Difference]: With dead ends: 2784 [2024-10-11 02:42:20,201 INFO L226 Difference]: Without dead ends: 2194 [2024-10-11 02:42:20,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:42:20,206 INFO L432 NwaCegarLoop]: 304 mSDtfsCounter, 2710 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 2819 mSolverCounterSat, 1005 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2774 SdHoareTripleChecker+Valid, 1751 SdHoareTripleChecker+Invalid, 3824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1005 IncrementalHoareTripleChecker+Valid, 2819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:20,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2774 Valid, 1751 Invalid, 3824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1005 Valid, 2819 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 02:42:20,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2024-10-11 02:42:20,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 1801. [2024-10-11 02:42:20,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1402 states have (on average 1.5984308131241085) internal successors, (2241), 1453 states have internal predecessors, (2241), 302 states have call successors, (302), 86 states have call predecessors, (302), 96 states have return successors, (332), 305 states have call predecessors, (332), 300 states have call successors, (332) [2024-10-11 02:42:20,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2875 transitions. [2024-10-11 02:42:20,345 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2875 transitions. Word has length 162 [2024-10-11 02:42:20,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:20,345 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2875 transitions. [2024-10-11 02:42:20,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 7 states have internal predecessors, (128), 2 states have call successors, (50), 6 states have call predecessors, (50), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-10-11 02:42:20,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2875 transitions. [2024-10-11 02:42:20,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-11 02:42:20,354 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:20,354 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1] [2024-10-11 02:42:20,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 02:42:20,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-11 02:42:20,555 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:20,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:20,555 INFO L85 PathProgramCache]: Analyzing trace with hash 746873936, now seen corresponding path program 1 times [2024-10-11 02:42:20,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:20,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926638224] [2024-10-11 02:42:20,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:20,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 02:42:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 02:42:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-11 02:42:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-11 02:42:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-10-11 02:42:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-10-11 02:42:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 02:42:20,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:20,730 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:20,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:20,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926638224] [2024-10-11 02:42:20,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926638224] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:20,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:20,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:42:20,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803812570] [2024-10-11 02:42:20,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:20,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:42:20,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:20,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:42:20,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:42:20,734 INFO L87 Difference]: Start difference. First operand 1801 states and 2875 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:23,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:23,054 INFO L93 Difference]: Finished difference Result 4310 states and 7169 transitions. [2024-10-11 02:42:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:42:23,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (30), 6 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 167 [2024-10-11 02:42:23,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:23,070 INFO L225 Difference]: With dead ends: 4310 [2024-10-11 02:42:23,070 INFO L226 Difference]: Without dead ends: 2700 [2024-10-11 02:42:23,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:42:23,075 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 1549 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 649 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 2763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 649 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:23,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1576 Valid, 1319 Invalid, 2763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [649 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-11 02:42:23,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2024-10-11 02:42:23,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2327. [2024-10-11 02:42:23,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 1844 states have (on average 1.61117136659436) internal successors, (2971), 1907 states have internal predecessors, (2971), 386 states have call successors, (386), 86 states have call predecessors, (386), 96 states have return successors, (416), 389 states have call predecessors, (416), 384 states have call successors, (416) [2024-10-11 02:42:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 3773 transitions. [2024-10-11 02:42:23,271 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 3773 transitions. Word has length 167 [2024-10-11 02:42:23,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:23,272 INFO L471 AbstractCegarLoop]: Abstraction has 2327 states and 3773 transitions. [2024-10-11 02:42:23,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:23,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 3773 transitions. [2024-10-11 02:42:23,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-11 02:42:23,284 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:23,285 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1] [2024-10-11 02:42:23,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 02:42:23,285 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:23,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:23,285 INFO L85 PathProgramCache]: Analyzing trace with hash -212468772, now seen corresponding path program 1 times [2024-10-11 02:42:23,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:23,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060868406] [2024-10-11 02:42:23,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:23,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:23,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 02:42:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 02:42:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 02:42:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 02:42:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-10-11 02:42:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-10-11 02:42:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-11 02:42:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:23,456 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:23,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:23,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060868406] [2024-10-11 02:42:23,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060868406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:23,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:23,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:42:23,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245574559] [2024-10-11 02:42:23,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:23,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:42:23,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:23,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:42:23,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:42:23,460 INFO L87 Difference]: Start difference. First operand 2327 states and 3773 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:25,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:25,925 INFO L93 Difference]: Finished difference Result 5774 states and 9689 transitions. [2024-10-11 02:42:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:42:25,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 6 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 168 [2024-10-11 02:42:25,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:25,948 INFO L225 Difference]: With dead ends: 5774 [2024-10-11 02:42:25,949 INFO L226 Difference]: Without dead ends: 3676 [2024-10-11 02:42:25,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:42:25,959 INFO L432 NwaCegarLoop]: 286 mSDtfsCounter, 1516 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 2747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 659 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:25,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1542 Valid, 1326 Invalid, 2747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [659 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-11 02:42:25,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3676 states. [2024-10-11 02:42:26,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3676 to 3303. [2024-10-11 02:42:26,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3303 states, 2662 states have (on average 1.6277235161532682) internal successors, (4333), 2745 states have internal predecessors, (4333), 544 states have call successors, (544), 86 states have call predecessors, (544), 96 states have return successors, (574), 547 states have call predecessors, (574), 542 states have call successors, (574) [2024-10-11 02:42:26,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3303 states to 3303 states and 5451 transitions. [2024-10-11 02:42:26,157 INFO L78 Accepts]: Start accepts. Automaton has 3303 states and 5451 transitions. Word has length 168 [2024-10-11 02:42:26,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:26,158 INFO L471 AbstractCegarLoop]: Abstraction has 3303 states and 5451 transitions. [2024-10-11 02:42:26,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:26,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3303 states and 5451 transitions. [2024-10-11 02:42:26,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-10-11 02:42:26,172 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:26,172 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1] [2024-10-11 02:42:26,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 02:42:26,173 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:26,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:26,173 INFO L85 PathProgramCache]: Analyzing trace with hash -859085882, now seen corresponding path program 1 times [2024-10-11 02:42:26,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:26,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565711937] [2024-10-11 02:42:26,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:26,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:26,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:26,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:26,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:26,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:42:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 02:42:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 02:42:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 02:42:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-11 02:42:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-11 02:42:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-11 02:42:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:26,327 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:26,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:26,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565711937] [2024-10-11 02:42:26,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565711937] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:26,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:26,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:42:26,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108385613] [2024-10-11 02:42:26,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:26,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:42:26,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:26,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:42:26,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:42:26,332 INFO L87 Difference]: Start difference. First operand 3303 states and 5451 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:28,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:28,371 INFO L93 Difference]: Finished difference Result 8196 states and 13867 transitions. [2024-10-11 02:42:28,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:42:28,372 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (30), 6 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 169 [2024-10-11 02:42:28,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:28,402 INFO L225 Difference]: With dead ends: 8196 [2024-10-11 02:42:28,402 INFO L226 Difference]: Without dead ends: 5242 [2024-10-11 02:42:28,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:42:28,414 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 1918 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2014 mSolverCounterSat, 829 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 2843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 829 IncrementalHoareTripleChecker+Valid, 2014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:28,414 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 1142 Invalid, 2843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [829 Valid, 2014 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 02:42:28,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5242 states. [2024-10-11 02:42:28,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5242 to 4869. [2024-10-11 02:42:28,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 3990 states have (on average 1.6408521303258146) internal successors, (6547), 4105 states have internal predecessors, (6547), 782 states have call successors, (782), 86 states have call predecessors, (782), 96 states have return successors, (812), 785 states have call predecessors, (812), 780 states have call successors, (812) [2024-10-11 02:42:28,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 8141 transitions. [2024-10-11 02:42:28,675 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 8141 transitions. Word has length 169 [2024-10-11 02:42:28,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:28,676 INFO L471 AbstractCegarLoop]: Abstraction has 4869 states and 8141 transitions. [2024-10-11 02:42:28,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:28,676 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 8141 transitions. [2024-10-11 02:42:28,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-11 02:42:28,699 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:28,699 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1] [2024-10-11 02:42:28,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 02:42:28,700 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:28,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:28,700 INFO L85 PathProgramCache]: Analyzing trace with hash -31596843, now seen corresponding path program 1 times [2024-10-11 02:42:28,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:28,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420154149] [2024-10-11 02:42:28,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:28,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:28,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 02:42:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 02:42:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-11 02:42:28,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 02:42:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-11 02:42:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-11 02:42:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 02:42:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:28,856 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:28,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:28,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420154149] [2024-10-11 02:42:28,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420154149] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:28,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:28,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:42:28,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360417931] [2024-10-11 02:42:28,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:28,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:42:28,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:28,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:42:28,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:42:28,860 INFO L87 Difference]: Start difference. First operand 4869 states and 8141 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:31,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:31,013 INFO L93 Difference]: Finished difference Result 11872 states and 20209 transitions. [2024-10-11 02:42:31,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:42:31,014 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (30), 6 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 170 [2024-10-11 02:42:31,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:31,076 INFO L225 Difference]: With dead ends: 11872 [2024-10-11 02:42:31,077 INFO L226 Difference]: Without dead ends: 7652 [2024-10-11 02:42:31,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:42:31,093 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 1522 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 2124 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 2772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 2124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:31,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 1343 Invalid, 2772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [648 Valid, 2124 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 02:42:31,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7652 states. [2024-10-11 02:42:31,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7652 to 7279. [2024-10-11 02:42:31,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7279 states, 6076 states have (on average 1.651250822909809) internal successors, (10033), 6243 states have internal predecessors, (10033), 1106 states have call successors, (1106), 86 states have call predecessors, (1106), 96 states have return successors, (1136), 1109 states have call predecessors, (1136), 1104 states have call successors, (1136) [2024-10-11 02:42:31,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7279 states to 7279 states and 12275 transitions. [2024-10-11 02:42:31,440 INFO L78 Accepts]: Start accepts. Automaton has 7279 states and 12275 transitions. Word has length 170 [2024-10-11 02:42:31,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:31,441 INFO L471 AbstractCegarLoop]: Abstraction has 7279 states and 12275 transitions. [2024-10-11 02:42:31,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:31,441 INFO L276 IsEmpty]: Start isEmpty. Operand 7279 states and 12275 transitions. [2024-10-11 02:42:31,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-11 02:42:31,477 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:31,477 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1] [2024-10-11 02:42:31,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 02:42:31,477 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:31,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:31,479 INFO L85 PathProgramCache]: Analyzing trace with hash 199907390, now seen corresponding path program 1 times [2024-10-11 02:42:31,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:31,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970592905] [2024-10-11 02:42:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:31,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:42:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 02:42:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-11 02:42:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-11 02:42:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 02:42:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-10-11 02:42:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-11 02:42:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:31,617 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:31,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:31,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970592905] [2024-10-11 02:42:31,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970592905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:31,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:31,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:42:31,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312954546] [2024-10-11 02:42:31,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:31,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:42:31,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:31,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:42:31,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:42:31,622 INFO L87 Difference]: Start difference. First operand 7279 states and 12275 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:33,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:33,652 INFO L93 Difference]: Finished difference Result 17672 states and 30219 transitions. [2024-10-11 02:42:33,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:42:33,653 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (30), 6 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 171 [2024-10-11 02:42:33,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:33,696 INFO L225 Difference]: With dead ends: 17672 [2024-10-11 02:42:33,697 INFO L226 Difference]: Without dead ends: 11540 [2024-10-11 02:42:33,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:42:33,715 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 1929 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 838 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 2814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 838 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:33,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 1131 Invalid, 2814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [838 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 02:42:33,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11540 states. [2024-10-11 02:42:34,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11540 to 11167. [2024-10-11 02:42:34,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11167 states, 9474 states have (on average 1.6591724720287102) internal successors, (15719), 9729 states have internal predecessors, (15719), 1596 states have call successors, (1596), 86 states have call predecessors, (1596), 96 states have return successors, (1626), 1599 states have call predecessors, (1626), 1594 states have call successors, (1626) [2024-10-11 02:42:34,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11167 states to 11167 states and 18941 transitions. [2024-10-11 02:42:34,247 INFO L78 Accepts]: Start accepts. Automaton has 11167 states and 18941 transitions. Word has length 171 [2024-10-11 02:42:34,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:34,248 INFO L471 AbstractCegarLoop]: Abstraction has 11167 states and 18941 transitions. [2024-10-11 02:42:34,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:34,248 INFO L276 IsEmpty]: Start isEmpty. Operand 11167 states and 18941 transitions. [2024-10-11 02:42:34,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-11 02:42:34,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:34,293 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1] [2024-10-11 02:42:34,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 02:42:34,293 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:34,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:34,294 INFO L85 PathProgramCache]: Analyzing trace with hash -811987232, now seen corresponding path program 1 times [2024-10-11 02:42:34,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:34,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702172020] [2024-10-11 02:42:34,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:34,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:34,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 02:42:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 02:42:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-11 02:42:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-11 02:42:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-10-11 02:42:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-10-11 02:42:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-10-11 02:42:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:34,427 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:34,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:34,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702172020] [2024-10-11 02:42:34,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702172020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:34,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:34,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:42:34,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176163801] [2024-10-11 02:42:34,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:34,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:42:34,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:34,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:42:34,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:42:34,431 INFO L87 Difference]: Start difference. First operand 11167 states and 18941 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:36,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:36,726 INFO L93 Difference]: Finished difference Result 27410 states and 46961 transitions. [2024-10-11 02:42:36,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:42:36,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (30), 6 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 172 [2024-10-11 02:42:36,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:36,802 INFO L225 Difference]: With dead ends: 27410 [2024-10-11 02:42:36,802 INFO L226 Difference]: Without dead ends: 18124 [2024-10-11 02:42:36,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:42:36,835 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 1914 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1940 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 2827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:36,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1940 Valid, 1130 Invalid, 2827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 02:42:36,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18124 states. [2024-10-11 02:42:37,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18124 to 17751. [2024-10-11 02:42:37,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17751 states, 15072 states have (on average 1.6579750530785562) internal successors, (24989), 15483 states have internal predecessors, (24989), 2582 states have call successors, (2582), 86 states have call predecessors, (2582), 96 states have return successors, (2612), 2585 states have call predecessors, (2612), 2580 states have call successors, (2612) [2024-10-11 02:42:37,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17751 states to 17751 states and 30183 transitions. [2024-10-11 02:42:37,809 INFO L78 Accepts]: Start accepts. Automaton has 17751 states and 30183 transitions. Word has length 172 [2024-10-11 02:42:37,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:37,811 INFO L471 AbstractCegarLoop]: Abstraction has 17751 states and 30183 transitions. [2024-10-11 02:42:37,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:37,811 INFO L276 IsEmpty]: Start isEmpty. Operand 17751 states and 30183 transitions. [2024-10-11 02:42:37,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-11 02:42:37,880 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:37,880 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:42:37,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 02:42:37,880 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:37,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:37,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1914871859, now seen corresponding path program 1 times [2024-10-11 02:42:37,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:37,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430809234] [2024-10-11 02:42:37,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:37,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:37,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:37,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:37,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:37,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:37,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:37,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 02:42:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:38,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 02:42:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:38,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-11 02:42:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:38,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 02:42:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:38,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-10-11 02:42:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:38,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:38,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:38,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-10-11 02:42:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:38,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-10-11 02:42:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:38,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:38,037 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:38,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:38,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430809234] [2024-10-11 02:42:38,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430809234] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:38,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:38,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:42:38,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810770095] [2024-10-11 02:42:38,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:38,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:42:38,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:38,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:42:38,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:42:38,042 INFO L87 Difference]: Start difference. First operand 17751 states and 30183 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:40,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:40,640 INFO L93 Difference]: Finished difference Result 44804 states and 76903 transitions. [2024-10-11 02:42:40,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:42:40,641 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (30), 6 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 173 [2024-10-11 02:42:40,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:40,768 INFO L225 Difference]: With dead ends: 44804 [2024-10-11 02:42:40,768 INFO L226 Difference]: Without dead ends: 29894 [2024-10-11 02:42:40,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:42:40,808 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 1917 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 839 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1943 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 2808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 839 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:40,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1943 Valid, 1135 Invalid, 2808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [839 Valid, 1969 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 02:42:40,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29894 states. [2024-10-11 02:42:41,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29894 to 29521. [2024-10-11 02:42:42,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29521 states, 25198 states have (on average 1.6612032701008017) internal successors, (41859), 25897 states have internal predecessors, (41859), 4226 states have call successors, (4226), 86 states have call predecessors, (4226), 96 states have return successors, (4256), 4229 states have call predecessors, (4256), 4224 states have call successors, (4256) [2024-10-11 02:42:42,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29521 states to 29521 states and 50341 transitions. [2024-10-11 02:42:42,119 INFO L78 Accepts]: Start accepts. Automaton has 29521 states and 50341 transitions. Word has length 173 [2024-10-11 02:42:42,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:42,120 INFO L471 AbstractCegarLoop]: Abstraction has 29521 states and 50341 transitions. [2024-10-11 02:42:42,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:42,120 INFO L276 IsEmpty]: Start isEmpty. Operand 29521 states and 50341 transitions. [2024-10-11 02:42:42,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-11 02:42:42,245 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:42,245 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:42:42,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 02:42:42,246 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:42,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:42,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1408703623, now seen corresponding path program 1 times [2024-10-11 02:42:42,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:42,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652640686] [2024-10-11 02:42:42,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:42,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:42,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 02:42:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 02:42:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-11 02:42:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-10-11 02:42:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-11 02:42:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-10-11 02:42:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-11 02:42:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:42,389 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:42,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:42,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652640686] [2024-10-11 02:42:42,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652640686] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:42,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:42,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:42:42,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844225566] [2024-10-11 02:42:42,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:42,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:42:42,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:42,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:42:42,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:42:42,393 INFO L87 Difference]: Start difference. First operand 29521 states and 50341 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:45,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:45,519 INFO L93 Difference]: Finished difference Result 71388 states and 121893 transitions. [2024-10-11 02:42:45,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:42:45,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (30), 6 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 174 [2024-10-11 02:42:45,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:45,719 INFO L225 Difference]: With dead ends: 71388 [2024-10-11 02:42:45,720 INFO L226 Difference]: Without dead ends: 46926 [2024-10-11 02:42:45,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:42:45,792 INFO L432 NwaCegarLoop]: 285 mSDtfsCounter, 1515 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:45,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1544 Valid, 1299 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [654 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-11 02:42:45,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46926 states. [2024-10-11 02:42:47,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46926 to 46553. [2024-10-11 02:42:47,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46553 states, 39824 states have (on average 1.6455152671755726) internal successors, (65531), 41071 states have internal predecessors, (65531), 6632 states have call successors, (6632), 86 states have call predecessors, (6632), 96 states have return successors, (6662), 6635 states have call predecessors, (6662), 6630 states have call successors, (6662) [2024-10-11 02:42:47,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46553 states to 46553 states and 78825 transitions. [2024-10-11 02:42:47,818 INFO L78 Accepts]: Start accepts. Automaton has 46553 states and 78825 transitions. Word has length 174 [2024-10-11 02:42:47,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:47,819 INFO L471 AbstractCegarLoop]: Abstraction has 46553 states and 78825 transitions. [2024-10-11 02:42:47,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:47,820 INFO L276 IsEmpty]: Start isEmpty. Operand 46553 states and 78825 transitions. [2024-10-11 02:42:48,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-11 02:42:48,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:48,400 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:42:48,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 02:42:48,400 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:48,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:48,401 INFO L85 PathProgramCache]: Analyzing trace with hash -2133088373, now seen corresponding path program 1 times [2024-10-11 02:42:48,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:48,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445115118] [2024-10-11 02:42:48,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:48,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 02:42:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 02:42:48,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-11 02:42:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-10-11 02:42:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-10-11 02:42:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-11 02:42:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-11 02:42:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:48,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:48,590 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:48,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:48,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445115118] [2024-10-11 02:42:48,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445115118] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:48,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:48,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:42:48,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383680774] [2024-10-11 02:42:48,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:48,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:42:48,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:48,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:42:48,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:42:48,594 INFO L87 Difference]: Start difference. First operand 46553 states and 78825 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:52,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:42:52,315 INFO L93 Difference]: Finished difference Result 123092 states and 209211 transitions. [2024-10-11 02:42:52,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:42:52,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (30), 6 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 175 [2024-10-11 02:42:52,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:42:52,700 INFO L225 Difference]: With dead ends: 123092 [2024-10-11 02:42:52,700 INFO L226 Difference]: Without dead ends: 83164 [2024-10-11 02:42:52,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:42:52,772 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 1514 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 1359 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 02:42:52,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 1359 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [654 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 02:42:52,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83164 states. [2024-10-11 02:42:55,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83164 to 82791. [2024-10-11 02:42:55,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82791 states, 71162 states have (on average 1.6414800033725865) internal successors, (116811), 72941 states have internal predecessors, (116811), 11532 states have call successors, (11532), 86 states have call predecessors, (11532), 96 states have return successors, (11562), 11535 states have call predecessors, (11562), 11530 states have call successors, (11562) [2024-10-11 02:42:55,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82791 states to 82791 states and 139905 transitions. [2024-10-11 02:42:55,765 INFO L78 Accepts]: Start accepts. Automaton has 82791 states and 139905 transitions. Word has length 175 [2024-10-11 02:42:55,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:42:55,766 INFO L471 AbstractCegarLoop]: Abstraction has 82791 states and 139905 transitions. [2024-10-11 02:42:55,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:42:55,766 INFO L276 IsEmpty]: Start isEmpty. Operand 82791 states and 139905 transitions. [2024-10-11 02:42:56,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-11 02:42:56,009 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:42:56,009 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:42:56,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 02:42:56,010 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:42:56,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:42:56,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1949646234, now seen corresponding path program 1 times [2024-10-11 02:42:56,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:42:56,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773371531] [2024-10-11 02:42:56,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:42:56,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:42:56,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-11 02:42:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:42:56,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:42:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 02:42:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:42:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-11 02:42:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 02:42:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:42:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:42:56,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:42:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:42:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 02:42:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 02:42:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-11 02:42:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-11 02:42:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-11 02:42:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-11 02:42:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-11 02:42:56,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:42:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:42:56,153 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-10-11 02:42:56,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:42:56,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773371531] [2024-10-11 02:42:56,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773371531] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:42:56,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:42:56,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:42:56,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190937533] [2024-10-11 02:42:56,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:42:56,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:42:56,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:42:56,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:42:56,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:42:56,155 INFO L87 Difference]: Start difference. First operand 82791 states and 139905 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:43:01,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:43:01,651 INFO L93 Difference]: Finished difference Result 224486 states and 381045 transitions. [2024-10-11 02:43:01,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:43:01,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (30), 6 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 176 [2024-10-11 02:43:01,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:43:02,340 INFO L225 Difference]: With dead ends: 224486 [2024-10-11 02:43:02,340 INFO L226 Difference]: Without dead ends: 150606 [2024-10-11 02:43:02,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:43:02,471 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 1491 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 2180 mSolverCounterSat, 641 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 2821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 641 IncrementalHoareTripleChecker+Valid, 2180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 02:43:02,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1331 Invalid, 2821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [641 Valid, 2180 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 02:43:02,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150606 states. [2024-10-11 02:43:06,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150606 to 150233. [2024-10-11 02:43:07,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150233 states, 129578 states have (on average 1.6411041997870008) internal successors, (212651), 132935 states have internal predecessors, (212651), 20558 states have call successors, (20558), 86 states have call predecessors, (20558), 96 states have return successors, (20588), 20561 states have call predecessors, (20588), 20556 states have call successors, (20588) [2024-10-11 02:43:08,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150233 states to 150233 states and 253797 transitions. [2024-10-11 02:43:08,179 INFO L78 Accepts]: Start accepts. Automaton has 150233 states and 253797 transitions. Word has length 176 [2024-10-11 02:43:08,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:43:08,179 INFO L471 AbstractCegarLoop]: Abstraction has 150233 states and 253797 transitions. [2024-10-11 02:43:08,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-10-11 02:43:08,180 INFO L276 IsEmpty]: Start isEmpty. Operand 150233 states and 253797 transitions. [2024-10-11 02:43:08,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-11 02:43:08,543 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:43:08,543 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:43:08,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 02:43:08,544 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION === [incoming__before__VerifyErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:43:08,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:43:08,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1525703739, now seen corresponding path program 1 times [2024-10-11 02:43:08,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:43:08,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37781419] [2024-10-11 02:43:08,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:43:08,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:43:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat