./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18d9c4eb49bcfbad00b16e4c52915ece2e20abb9b599480aaed1e3c1557875b0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:11:10,717 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:11:10,777 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:11:10,782 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:11:10,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:11:10,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:11:10,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:11:10,811 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:11:10,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:11:10,812 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:11:10,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:11:10,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:11:10,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:11:10,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:11:10,815 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:11:10,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:11:10,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:11:10,815 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:11:10,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:11:10,816 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:11:10,819 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:11:10,819 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:11:10,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:11:10,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:11:10,820 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:11:10,820 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:11:10,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:11:10,820 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:11:10,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:11:10,821 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:11:10,821 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:11:10,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:11:10,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:11:10,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:11:10,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:11:10,822 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:11:10,822 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:11:10,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:11:10,822 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:11:10,822 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:11:10,822 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:11:10,824 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:11:10,824 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18d9c4eb49bcfbad00b16e4c52915ece2e20abb9b599480aaed1e3c1557875b0 [2024-11-18 14:11:11,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:11:11,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:11:11,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:11:11,133 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:11:11,136 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:11:11,137 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c [2024-11-18 14:11:12,668 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:11:12,957 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:11:12,959 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c [2024-11-18 14:11:12,981 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9d40158/eacde86bffca4bccbc5911399e9575e5/FLAG273a7ad69 [2024-11-18 14:11:12,995 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d9d40158/eacde86bffca4bccbc5911399e9575e5 [2024-11-18 14:11:12,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:11:12,999 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:11:13,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:11:13,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:11:13,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:11:13,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:11:12" (1/1) ... [2024-11-18 14:11:13,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2902c108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13, skipping insertion in model container [2024-11-18 14:11:13,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:11:12" (1/1) ... [2024-11-18 14:11:13,072 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:11:13,325 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2024-11-18 14:11:13,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:11:13,579 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:11:13,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-18 14:11:13,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [276] [2024-11-18 14:11:13,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [386] [2024-11-18 14:11:13,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [403] [2024-11-18 14:11:13,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [412] [2024-11-18 14:11:13,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [778] [2024-11-18 14:11:13,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1356] [2024-11-18 14:11:13,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1753] [2024-11-18 14:11:13,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [2030] [2024-11-18 14:11:13,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3101] [2024-11-18 14:11:13,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [3450] [2024-11-18 14:11:13,602 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_productSimulator.cil.c[9250,9263] [2024-11-18 14:11:13,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:11:13,829 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:11:13,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13 WrapperNode [2024-11-18 14:11:13,829 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:11:13,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:11:13,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:11:13,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:11:13,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (1/1) ... [2024-11-18 14:11:13,904 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (1/1) ... [2024-11-18 14:11:14,031 INFO L138 Inliner]: procedures = 152, calls = 270, calls flagged for inlining = 67, calls inlined = 64, statements flattened = 1349 [2024-11-18 14:11:14,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:11:14,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:11:14,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:11:14,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:11:14,061 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (1/1) ... [2024-11-18 14:11:14,061 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (1/1) ... [2024-11-18 14:11:14,073 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (1/1) ... [2024-11-18 14:11:14,121 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-18 14:11:14,121 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (1/1) ... [2024-11-18 14:11:14,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (1/1) ... [2024-11-18 14:11:14,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (1/1) ... [2024-11-18 14:11:14,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (1/1) ... [2024-11-18 14:11:14,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (1/1) ... [2024-11-18 14:11:14,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (1/1) ... [2024-11-18 14:11:14,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:11:14,225 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:11:14,225 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:11:14,225 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:11:14,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (1/1) ... [2024-11-18 14:11:14,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:11:14,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:14,281 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:11:14,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:11:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-18 14:11:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-18 14:11:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2024-11-18 14:11:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2024-11-18 14:11:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2024-11-18 14:11:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2024-11-18 14:11:14,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-18 14:11:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-18 14:11:14,333 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-18 14:11:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-18 14:11:14,333 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-18 14:11:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-18 14:11:14,333 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-18 14:11:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-18 14:11:14,333 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2024-11-18 14:11:14,335 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2024-11-18 14:11:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-18 14:11:14,335 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-18 14:11:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2024-11-18 14:11:14,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2024-11-18 14:11:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-18 14:11:14,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-18 14:11:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-18 14:11:14,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-18 14:11:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-18 14:11:14,337 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-18 14:11:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2024-11-18 14:11:14,337 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2024-11-18 14:11:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2024-11-18 14:11:14,337 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2024-11-18 14:11:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-18 14:11:14,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-18 14:11:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-18 14:11:14,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-18 14:11:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-18 14:11:14,338 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-18 14:11:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2024-11-18 14:11:14,338 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2024-11-18 14:11:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-18 14:11:14,338 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-18 14:11:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-18 14:11:14,338 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-18 14:11:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-18 14:11:14,338 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-18 14:11:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2024-11-18 14:11:14,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2024-11-18 14:11:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:11:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-18 14:11:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-18 14:11:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-18 14:11:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-18 14:11:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2024-11-18 14:11:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2024-11-18 14:11:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2024-11-18 14:11:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2024-11-18 14:11:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2024-11-18 14:11:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2024-11-18 14:11:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-18 14:11:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-18 14:11:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-18 14:11:14,339 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-18 14:11:14,339 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-18 14:11:14,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-18 14:11:14,340 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-18 14:11:14,340 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-18 14:11:14,340 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-18 14:11:14,340 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-18 14:11:14,340 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-18 14:11:14,340 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-18 14:11:14,342 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-18 14:11:14,342 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-18 14:11:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-18 14:11:14,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-18 14:11:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2024-11-18 14:11:14,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2024-11-18 14:11:14,343 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2024-11-18 14:11:14,343 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2024-11-18 14:11:14,344 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-18 14:11:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-18 14:11:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-18 14:11:14,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-18 14:11:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:11:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:11:14,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:11:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:11:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-18 14:11:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-18 14:11:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2024-11-18 14:11:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2024-11-18 14:11:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2024-11-18 14:11:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2024-11-18 14:11:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-18 14:11:14,346 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-18 14:11:14,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:11:14,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:11:14,579 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:11:14,582 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:11:15,615 INFO L? ?]: Removed 633 outVars from TransFormulas that were not future-live. [2024-11-18 14:11:15,616 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:11:15,647 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:11:15,650 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:11:15,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:11:15 BoogieIcfgContainer [2024-11-18 14:11:15,651 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:11:15,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:11:15,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:11:15,658 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:11:15,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:11:12" (1/3) ... [2024-11-18 14:11:15,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d2a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:11:15, skipping insertion in model container [2024-11-18 14:11:15,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:11:13" (2/3) ... [2024-11-18 14:11:15,659 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d2a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:11:15, skipping insertion in model container [2024-11-18 14:11:15,659 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:11:15" (3/3) ... [2024-11-18 14:11:15,660 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_productSimulator.cil.c [2024-11-18 14:11:15,680 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:11:15,680 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:11:15,760 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:11:15,765 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;@5032b0ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:11:15,766 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:11:15,771 INFO L276 IsEmpty]: Start isEmpty. Operand has 614 states, 453 states have (on average 1.5121412803532008) internal successors, (685), 475 states have internal predecessors, (685), 115 states have call successors, (115), 44 states have call predecessors, (115), 44 states have return successors, (115), 113 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-18 14:11:15,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-18 14:11:15,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:15,791 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:15,791 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:15,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:15,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2009232668, now seen corresponding path program 1 times [2024-11-18 14:11:15,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:15,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055465291] [2024-11-18 14:11:15,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:15,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:16,098 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-18 14:11:16,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:16,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055465291] [2024-11-18 14:11:16,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055465291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:16,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:16,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:11:16,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767086456] [2024-11-18 14:11:16,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:16,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:11:16,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:16,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:11:16,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:11:16,128 INFO L87 Difference]: Start difference. First operand has 614 states, 453 states have (on average 1.5121412803532008) internal successors, (685), 475 states have internal predecessors, (685), 115 states have call successors, (115), 44 states have call predecessors, (115), 44 states have return successors, (115), 113 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:16,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:16,205 INFO L93 Difference]: Finished difference Result 958 states and 1411 transitions. [2024-11-18 14:11:16,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:11:16,208 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2024-11-18 14:11:16,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:16,219 INFO L225 Difference]: With dead ends: 958 [2024-11-18 14:11:16,219 INFO L226 Difference]: Without dead ends: 606 [2024-11-18 14:11:16,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:11:16,226 INFO L432 NwaCegarLoop]: 909 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:16,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:16,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-18 14:11:16,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2024-11-18 14:11:16,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 447 states have (on average 1.5078299776286352) internal successors, (674), 467 states have internal predecessors, (674), 115 states have call successors, (115), 44 states have call predecessors, (115), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-18 14:11:16,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 901 transitions. [2024-11-18 14:11:16,300 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 901 transitions. Word has length 152 [2024-11-18 14:11:16,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:16,302 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 901 transitions. [2024-11-18 14:11:16,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-18 14:11:16,302 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 901 transitions. [2024-11-18 14:11:16,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-18 14:11:16,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:16,309 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:16,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:11:16,310 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:16,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:16,311 INFO L85 PathProgramCache]: Analyzing trace with hash -231323069, now seen corresponding path program 1 times [2024-11-18 14:11:16,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:16,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464133473] [2024-11-18 14:11:16,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:16,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-18 14:11:16,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:16,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464133473] [2024-11-18 14:11:16,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464133473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:16,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:16,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:11:16,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233839301] [2024-11-18 14:11:16,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:16,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:11:16,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:16,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:11:16,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:11:16,705 INFO L87 Difference]: Start difference. First operand 606 states and 901 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-18 14:11:16,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:16,799 INFO L93 Difference]: Finished difference Result 1176 states and 1746 transitions. [2024-11-18 14:11:16,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:11:16,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 160 [2024-11-18 14:11:16,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:16,808 INFO L225 Difference]: With dead ends: 1176 [2024-11-18 14:11:16,808 INFO L226 Difference]: Without dead ends: 606 [2024-11-18 14:11:16,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:11:16,812 INFO L432 NwaCegarLoop]: 899 mSDtfsCounter, 0 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3584 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:16,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3584 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:16,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-18 14:11:16,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 606. [2024-11-18 14:11:16,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 447 states have (on average 1.4921700223713648) internal successors, (667), 467 states have internal predecessors, (667), 115 states have call successors, (115), 44 states have call predecessors, (115), 43 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-18 14:11:16,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 894 transitions. [2024-11-18 14:11:16,857 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 894 transitions. Word has length 160 [2024-11-18 14:11:16,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:16,858 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 894 transitions. [2024-11-18 14:11:16,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-18 14:11:16,858 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 894 transitions. [2024-11-18 14:11:16,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-18 14:11:16,863 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:16,864 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:16,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:11:16,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:16,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:16,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1384375514, now seen corresponding path program 1 times [2024-11-18 14:11:16,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:16,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574642333] [2024-11-18 14:11:16,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:16,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:17,021 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-18 14:11:17,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:17,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574642333] [2024-11-18 14:11:17,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574642333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:17,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:17,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:17,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023660830] [2024-11-18 14:11:17,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:17,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:17,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:17,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:17,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:17,026 INFO L87 Difference]: Start difference. First operand 606 states and 894 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-18 14:11:17,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:17,072 INFO L93 Difference]: Finished difference Result 1182 states and 1759 transitions. [2024-11-18 14:11:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:17,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 158 [2024-11-18 14:11:17,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:17,076 INFO L225 Difference]: With dead ends: 1182 [2024-11-18 14:11:17,077 INFO L226 Difference]: Without dead ends: 607 [2024-11-18 14:11:17,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:17,079 INFO L432 NwaCegarLoop]: 883 mSDtfsCounter, 858 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:17,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 901 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:17,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-18 14:11:17,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 607. [2024-11-18 14:11:17,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 449 states have (on average 1.4810690423162582) internal successors, (665), 467 states have internal predecessors, (665), 113 states have call successors, (113), 45 states have call predecessors, (113), 44 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-18 14:11:17,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 888 transitions. [2024-11-18 14:11:17,109 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 888 transitions. Word has length 158 [2024-11-18 14:11:17,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:17,110 INFO L471 AbstractCegarLoop]: Abstraction has 607 states and 888 transitions. [2024-11-18 14:11:17,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-18 14:11:17,110 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 888 transitions. [2024-11-18 14:11:17,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-18 14:11:17,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:17,113 INFO L215 NwaCegarLoop]: trace histogram [8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:17,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:11:17,114 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:17,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:17,115 INFO L85 PathProgramCache]: Analyzing trace with hash -82745420, now seen corresponding path program 1 times [2024-11-18 14:11:17,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:17,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435775298] [2024-11-18 14:11:17,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:17,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:17,226 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-18 14:11:17,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:17,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435775298] [2024-11-18 14:11:17,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435775298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:17,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:17,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:17,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304032648] [2024-11-18 14:11:17,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:17,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:17,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:17,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:17,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:17,231 INFO L87 Difference]: Start difference. First operand 607 states and 888 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:17,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:17,285 INFO L93 Difference]: Finished difference Result 1176 states and 1738 transitions. [2024-11-18 14:11:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:17,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 189 [2024-11-18 14:11:17,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:17,292 INFO L225 Difference]: With dead ends: 1176 [2024-11-18 14:11:17,292 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 14:11:17,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:17,297 INFO L432 NwaCegarLoop]: 876 mSDtfsCounter, 838 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:17,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [838 Valid, 914 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:17,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 14:11:17,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2024-11-18 14:11:17,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 449 states have (on average 1.4743875278396437) internal successors, (662), 465 states have internal predecessors, (662), 111 states have call successors, (111), 45 states have call predecessors, (111), 44 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-18 14:11:17,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 881 transitions. [2024-11-18 14:11:17,339 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 881 transitions. Word has length 189 [2024-11-18 14:11:17,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:17,339 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 881 transitions. [2024-11-18 14:11:17,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:17,341 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 881 transitions. [2024-11-18 14:11:17,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-18 14:11:17,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:17,345 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:17,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:11:17,345 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:17,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:17,346 INFO L85 PathProgramCache]: Analyzing trace with hash 86796708, now seen corresponding path program 1 times [2024-11-18 14:11:17,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:17,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58736107] [2024-11-18 14:11:17,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:17,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:17,455 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-18 14:11:17,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:17,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58736107] [2024-11-18 14:11:17,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58736107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:17,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:17,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:17,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540031737] [2024-11-18 14:11:17,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:17,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:17,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:17,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:17,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:17,460 INFO L87 Difference]: Start difference. First operand 605 states and 881 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-18 14:11:17,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:17,522 INFO L93 Difference]: Finished difference Result 1167 states and 1704 transitions. [2024-11-18 14:11:17,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:17,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 176 [2024-11-18 14:11:17,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:17,526 INFO L225 Difference]: With dead ends: 1167 [2024-11-18 14:11:17,526 INFO L226 Difference]: Without dead ends: 608 [2024-11-18 14:11:17,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:17,529 INFO L432 NwaCegarLoop]: 856 mSDtfsCounter, 818 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:17,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 897 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:17,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-18 14:11:17,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 602. [2024-11-18 14:11:17,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 449 states have (on average 1.4498886414253898) internal successors, (651), 460 states have internal predecessors, (651), 108 states have call successors, (108), 45 states have call predecessors, (108), 44 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-18 14:11:17,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 864 transitions. [2024-11-18 14:11:17,563 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 864 transitions. Word has length 176 [2024-11-18 14:11:17,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:17,563 INFO L471 AbstractCegarLoop]: Abstraction has 602 states and 864 transitions. [2024-11-18 14:11:17,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-18 14:11:17,564 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 864 transitions. [2024-11-18 14:11:17,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-18 14:11:17,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:17,567 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:17,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:11:17,568 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:17,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:17,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1888580762, now seen corresponding path program 1 times [2024-11-18 14:11:17,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:17,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717752609] [2024-11-18 14:11:17,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:17,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:17,857 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-18 14:11:17,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:17,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717752609] [2024-11-18 14:11:17,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717752609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:17,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661903858] [2024-11-18 14:11:17,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:17,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:17,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:17,863 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:17,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:11:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:18,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 1515 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 14:11:18,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:18,243 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-18 14:11:18,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:11:18,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661903858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:18,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:11:18,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-18 14:11:18,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435827168] [2024-11-18 14:11:18,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:18,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:18,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:18,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:18,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:11:18,245 INFO L87 Difference]: Start difference. First operand 602 states and 864 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:18,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:18,307 INFO L93 Difference]: Finished difference Result 939 states and 1329 transitions. [2024-11-18 14:11:18,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:18,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 187 [2024-11-18 14:11:18,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:18,311 INFO L225 Difference]: With dead ends: 939 [2024-11-18 14:11:18,315 INFO L226 Difference]: Without dead ends: 605 [2024-11-18 14:11:18,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:11:18,317 INFO L432 NwaCegarLoop]: 860 mSDtfsCounter, 1 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:18,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1718 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:18,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-18 14:11:18,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 604. [2024-11-18 14:11:18,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 451 states have (on average 1.4478935698447895) internal successors, (653), 462 states have internal predecessors, (653), 108 states have call successors, (108), 45 states have call predecessors, (108), 44 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-18 14:11:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 866 transitions. [2024-11-18 14:11:18,373 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 866 transitions. Word has length 187 [2024-11-18 14:11:18,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:18,373 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 866 transitions. [2024-11-18 14:11:18,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:18,374 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 866 transitions. [2024-11-18 14:11:18,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-18 14:11:18,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:18,380 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:18,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:11:18,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-18 14:11:18,582 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:18,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:18,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1844540433, now seen corresponding path program 1 times [2024-11-18 14:11:18,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:18,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132909726] [2024-11-18 14:11:18,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:18,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-18 14:11:18,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:18,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132909726] [2024-11-18 14:11:18,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132909726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:18,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559120055] [2024-11-18 14:11:18,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:18,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:18,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:18,899 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:18,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:11:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:19,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 1559 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:11:19,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:19,400 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-18 14:11:19,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:11:19,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559120055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:19,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:11:19,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-18 14:11:19,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112814273] [2024-11-18 14:11:19,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:19,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:19,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:19,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:19,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:11:19,403 INFO L87 Difference]: Start difference. First operand 604 states and 866 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-18 14:11:19,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:19,450 INFO L93 Difference]: Finished difference Result 1228 states and 1793 transitions. [2024-11-18 14:11:19,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:19,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 202 [2024-11-18 14:11:19,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:19,455 INFO L225 Difference]: With dead ends: 1228 [2024-11-18 14:11:19,455 INFO L226 Difference]: Without dead ends: 702 [2024-11-18 14:11:19,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:11:19,458 INFO L432 NwaCegarLoop]: 876 mSDtfsCounter, 165 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:19,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 1690 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:19,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2024-11-18 14:11:19,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 694. [2024-11-18 14:11:19,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 527 states have (on average 1.462998102466793) internal successors, (771), 538 states have internal predecessors, (771), 122 states have call successors, (122), 45 states have call predecessors, (122), 44 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-18 14:11:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1012 transitions. [2024-11-18 14:11:19,490 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1012 transitions. Word has length 202 [2024-11-18 14:11:19,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:19,490 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 1012 transitions. [2024-11-18 14:11:19,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-18 14:11:19,491 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1012 transitions. [2024-11-18 14:11:19,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-18 14:11:19,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:19,493 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:19,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 14:11:19,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-18 14:11:19,698 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:19,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:19,698 INFO L85 PathProgramCache]: Analyzing trace with hash 299797991, now seen corresponding path program 1 times [2024-11-18 14:11:19,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:19,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053455210] [2024-11-18 14:11:19,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:19,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:19,910 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-18 14:11:19,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:19,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053455210] [2024-11-18 14:11:19,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053455210] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:19,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120307983] [2024-11-18 14:11:19,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:19,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:19,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:19,913 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:19,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:11:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:20,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:11:20,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:20,425 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-18 14:11:20,426 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:11:20,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120307983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:20,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:11:20,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-18 14:11:20,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026386849] [2024-11-18 14:11:20,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:20,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:20,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:20,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:20,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:11:20,428 INFO L87 Difference]: Start difference. First operand 694 states and 1012 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-18 14:11:20,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:20,515 INFO L93 Difference]: Finished difference Result 2007 states and 2977 transitions. [2024-11-18 14:11:20,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:20,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 224 [2024-11-18 14:11:20,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:20,523 INFO L225 Difference]: With dead ends: 2007 [2024-11-18 14:11:20,523 INFO L226 Difference]: Without dead ends: 1342 [2024-11-18 14:11:20,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:11:20,526 INFO L432 NwaCegarLoop]: 903 mSDtfsCounter, 721 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:20,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [721 Valid, 1735 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:20,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2024-11-18 14:11:20,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1338. [2024-11-18 14:11:20,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1027 states have (on average 1.4673807205452776) internal successors, (1507), 1043 states have internal predecessors, (1507), 223 states have call successors, (223), 88 states have call predecessors, (223), 87 states have return successors, (235), 219 states have call predecessors, (235), 219 states have call successors, (235) [2024-11-18 14:11:20,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1965 transitions. [2024-11-18 14:11:20,597 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1965 transitions. Word has length 224 [2024-11-18 14:11:20,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:20,597 INFO L471 AbstractCegarLoop]: Abstraction has 1338 states and 1965 transitions. [2024-11-18 14:11:20,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (36), 3 states have call predecessors, (36), 3 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-11-18 14:11:20,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1965 transitions. [2024-11-18 14:11:20,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-18 14:11:20,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:20,601 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:20,617 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 14:11:20,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:20,803 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:20,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:20,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1599728290, now seen corresponding path program 1 times [2024-11-18 14:11:20,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:20,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271564681] [2024-11-18 14:11:20,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:20,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-18 14:11:20,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:20,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271564681] [2024-11-18 14:11:20,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271564681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:20,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857453642] [2024-11-18 14:11:20,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:20,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:20,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:20,988 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:20,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 14:11:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:21,292 INFO L255 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:11:21,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:21,457 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:11:21,458 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:11:21,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857453642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:21,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:11:21,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-18 14:11:21,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765908707] [2024-11-18 14:11:21,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:21,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:21,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:21,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:21,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:11:21,459 INFO L87 Difference]: Start difference. First operand 1338 states and 1965 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-18 14:11:21,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:21,548 INFO L93 Difference]: Finished difference Result 3228 states and 4751 transitions. [2024-11-18 14:11:21,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:21,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 203 [2024-11-18 14:11:21,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:21,560 INFO L225 Difference]: With dead ends: 3228 [2024-11-18 14:11:21,560 INFO L226 Difference]: Without dead ends: 2599 [2024-11-18 14:11:21,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:11:21,563 INFO L432 NwaCegarLoop]: 867 mSDtfsCounter, 723 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:21,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 1693 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:21,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2024-11-18 14:11:21,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2595. [2024-11-18 14:11:21,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2595 states, 2005 states have (on average 1.4718204488778055) internal successors, (2951), 2030 states have internal predecessors, (2951), 420 states have call successors, (420), 170 states have call predecessors, (420), 169 states have return successors, (468), 414 states have call predecessors, (468), 414 states have call successors, (468) [2024-11-18 14:11:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2595 states to 2595 states and 3839 transitions. [2024-11-18 14:11:21,660 INFO L78 Accepts]: Start accepts. Automaton has 2595 states and 3839 transitions. Word has length 203 [2024-11-18 14:11:21,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:21,661 INFO L471 AbstractCegarLoop]: Abstraction has 2595 states and 3839 transitions. [2024-11-18 14:11:21,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-18 14:11:21,661 INFO L276 IsEmpty]: Start isEmpty. Operand 2595 states and 3839 transitions. [2024-11-18 14:11:21,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-18 14:11:21,669 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:21,670 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:21,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 14:11:21,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:21,871 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:21,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:21,871 INFO L85 PathProgramCache]: Analyzing trace with hash 324828887, now seen corresponding path program 1 times [2024-11-18 14:11:21,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:21,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142578454] [2024-11-18 14:11:21,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:21,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:22,054 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-18 14:11:22,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:22,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142578454] [2024-11-18 14:11:22,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142578454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:22,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635556996] [2024-11-18 14:11:22,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:22,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:22,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:22,057 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:22,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 14:11:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:22,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 1534 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-18 14:11:22,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:22,467 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-18 14:11:22,467 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:11:22,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635556996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:22,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:11:22,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-18 14:11:22,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628923682] [2024-11-18 14:11:22,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:22,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:11:22,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:22,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:11:22,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:11:22,470 INFO L87 Difference]: Start difference. First operand 2595 states and 3839 transitions. Second operand has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-18 14:11:22,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:22,618 INFO L93 Difference]: Finished difference Result 5067 states and 7542 transitions. [2024-11-18 14:11:22,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:11:22,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 196 [2024-11-18 14:11:22,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:22,630 INFO L225 Difference]: With dead ends: 5067 [2024-11-18 14:11:22,630 INFO L226 Difference]: Without dead ends: 2603 [2024-11-18 14:11:22,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-18 14:11:22,636 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 4 mSDsluCounter, 5089 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5940 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:22,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5940 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:22,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2024-11-18 14:11:22,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2603. [2024-11-18 14:11:22,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2009 states have (on average 1.4708810353409656) internal successors, (2955), 2038 states have internal predecessors, (2955), 420 states have call successors, (420), 170 states have call predecessors, (420), 173 states have return successors, (476), 414 states have call predecessors, (476), 414 states have call successors, (476) [2024-11-18 14:11:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 3851 transitions. [2024-11-18 14:11:22,720 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 3851 transitions. Word has length 196 [2024-11-18 14:11:22,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:22,721 INFO L471 AbstractCegarLoop]: Abstraction has 2603 states and 3851 transitions. [2024-11-18 14:11:22,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-18 14:11:22,722 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 3851 transitions. [2024-11-18 14:11:22,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-18 14:11:22,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:22,727 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:22,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-18 14:11:22,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-18 14:11:22,928 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:22,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:22,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1880372696, now seen corresponding path program 1 times [2024-11-18 14:11:22,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:22,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862255277] [2024-11-18 14:11:22,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:22,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:23,097 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-18 14:11:23,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:23,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862255277] [2024-11-18 14:11:23,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862255277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:23,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160775491] [2024-11-18 14:11:23,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:23,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:23,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:23,100 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:23,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 14:11:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:23,500 INFO L255 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:11:23,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-18 14:11:23,560 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:11:23,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160775491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:23,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:11:23,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-11-18 14:11:23,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745280001] [2024-11-18 14:11:23,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:23,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:11:23,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:23,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:11:23,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:11:23,563 INFO L87 Difference]: Start difference. First operand 2603 states and 3851 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-18 14:11:23,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:23,694 INFO L93 Difference]: Finished difference Result 5071 states and 7558 transitions. [2024-11-18 14:11:23,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:11:23,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 197 [2024-11-18 14:11:23,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:23,706 INFO L225 Difference]: With dead ends: 5071 [2024-11-18 14:11:23,706 INFO L226 Difference]: Without dead ends: 2611 [2024-11-18 14:11:23,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:11:23,713 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 2 mSDsluCounter, 3387 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4238 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:23,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4238 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:23,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2024-11-18 14:11:23,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2024-11-18 14:11:23,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2013 states have (on average 1.469945355191257) internal successors, (2959), 2046 states have internal predecessors, (2959), 420 states have call successors, (420), 170 states have call predecessors, (420), 177 states have return successors, (496), 414 states have call predecessors, (496), 414 states have call successors, (496) [2024-11-18 14:11:23,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3875 transitions. [2024-11-18 14:11:23,790 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3875 transitions. Word has length 197 [2024-11-18 14:11:23,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:23,791 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 3875 transitions. [2024-11-18 14:11:23,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-18 14:11:23,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3875 transitions. [2024-11-18 14:11:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-18 14:11:23,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:23,796 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:23,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-18 14:11:24,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:24,001 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:24,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:24,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1306528101, now seen corresponding path program 1 times [2024-11-18 14:11:24,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:24,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942344433] [2024-11-18 14:11:24,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:24,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-18 14:11:24,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:24,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942344433] [2024-11-18 14:11:24,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942344433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:24,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:24,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:11:24,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295097738] [2024-11-18 14:11:24,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:24,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:11:24,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:24,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:11:24,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:11:24,217 INFO L87 Difference]: Start difference. First operand 2611 states and 3875 transitions. Second operand has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-18 14:11:24,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:24,382 INFO L93 Difference]: Finished difference Result 5023 states and 7506 transitions. [2024-11-18 14:11:24,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:11:24,383 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 198 [2024-11-18 14:11:24,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:24,396 INFO L225 Difference]: With dead ends: 5023 [2024-11-18 14:11:24,397 INFO L226 Difference]: Without dead ends: 2611 [2024-11-18 14:11:24,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:11:24,404 INFO L432 NwaCegarLoop]: 852 mSDtfsCounter, 4 mSDsluCounter, 5095 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:24,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5947 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:24,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2024-11-18 14:11:24,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2024-11-18 14:11:24,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2013 states have (on average 1.469945355191257) internal successors, (2959), 2046 states have internal predecessors, (2959), 420 states have call successors, (420), 170 states have call predecessors, (420), 177 states have return successors, (492), 414 states have call predecessors, (492), 414 states have call successors, (492) [2024-11-18 14:11:24,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3871 transitions. [2024-11-18 14:11:24,524 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3871 transitions. Word has length 198 [2024-11-18 14:11:24,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:24,525 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 3871 transitions. [2024-11-18 14:11:24,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.333333333333332) internal successors, (116), 8 states have internal predecessors, (116), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-18 14:11:24,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3871 transitions. [2024-11-18 14:11:24,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-18 14:11:24,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:24,530 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:24,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:11:24,531 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:24,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:24,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1187164808, now seen corresponding path program 2 times [2024-11-18 14:11:24,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:24,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621005714] [2024-11-18 14:11:24,531 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-18 14:11:24,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:24,561 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-18 14:11:24,561 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:11:24,682 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-18 14:11:24,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:24,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621005714] [2024-11-18 14:11:24,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621005714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:24,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:24,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:11:24,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992070488] [2024-11-18 14:11:24,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:24,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:11:24,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:24,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:11:24,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:11:24,686 INFO L87 Difference]: Start difference. First operand 2611 states and 3871 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-18 14:11:24,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:24,783 INFO L93 Difference]: Finished difference Result 5011 states and 7482 transitions. [2024-11-18 14:11:24,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:11:24,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 199 [2024-11-18 14:11:24,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:24,803 INFO L225 Difference]: With dead ends: 5011 [2024-11-18 14:11:24,804 INFO L226 Difference]: Without dead ends: 2611 [2024-11-18 14:11:24,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:11:24,811 INFO L432 NwaCegarLoop]: 852 mSDtfsCounter, 2 mSDsluCounter, 3391 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4243 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:24,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4243 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:24,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2024-11-18 14:11:24,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2024-11-18 14:11:24,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2013 states have (on average 1.469945355191257) internal successors, (2959), 2046 states have internal predecessors, (2959), 420 states have call successors, (420), 170 states have call predecessors, (420), 177 states have return successors, (488), 414 states have call predecessors, (488), 414 states have call successors, (488) [2024-11-18 14:11:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3867 transitions. [2024-11-18 14:11:24,954 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3867 transitions. Word has length 199 [2024-11-18 14:11:24,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:24,955 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 3867 transitions. [2024-11-18 14:11:24,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2024-11-18 14:11:24,955 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3867 transitions. [2024-11-18 14:11:24,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-18 14:11:24,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:24,961 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:24,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:11:24,962 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:24,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:24,962 INFO L85 PathProgramCache]: Analyzing trace with hash 529111111, now seen corresponding path program 3 times [2024-11-18 14:11:24,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:24,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832795060] [2024-11-18 14:11:24,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-18 14:11:24,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:24,992 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-18 14:11:24,992 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-18 14:11:25,143 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-18 14:11:25,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:25,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832795060] [2024-11-18 14:11:25,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832795060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:25,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:25,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:11:25,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206956175] [2024-11-18 14:11:25,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:25,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:11:25,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:25,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:11:25,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:11:25,149 INFO L87 Difference]: Start difference. First operand 2611 states and 3867 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-18 14:11:25,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:25,743 INFO L93 Difference]: Finished difference Result 6593 states and 9766 transitions. [2024-11-18 14:11:25,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:11:25,743 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) Word has length 200 [2024-11-18 14:11:25,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:25,769 INFO L225 Difference]: With dead ends: 6593 [2024-11-18 14:11:25,770 INFO L226 Difference]: Without dead ends: 5381 [2024-11-18 14:11:25,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:11:25,775 INFO L432 NwaCegarLoop]: 1173 mSDtfsCounter, 1352 mSDsluCounter, 3836 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 5009 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:25,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 5009 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:11:25,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5381 states. [2024-11-18 14:11:25,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5381 to 5349. [2024-11-18 14:11:25,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5349 states, 4005 states have (on average 1.4414481897627964) internal successors, (5773), 4100 states have internal predecessors, (5773), 892 states have call successors, (892), 440 states have call predecessors, (892), 451 states have return successors, (1152), 870 states have call predecessors, (1152), 854 states have call successors, (1152) [2024-11-18 14:11:25,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5349 states to 5349 states and 7817 transitions. [2024-11-18 14:11:25,988 INFO L78 Accepts]: Start accepts. Automaton has 5349 states and 7817 transitions. Word has length 200 [2024-11-18 14:11:25,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:25,988 INFO L471 AbstractCegarLoop]: Abstraction has 5349 states and 7817 transitions. [2024-11-18 14:11:25,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 5 states have internal predecessors, (113), 4 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (25), 5 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-18 14:11:25,989 INFO L276 IsEmpty]: Start isEmpty. Operand 5349 states and 7817 transitions. [2024-11-18 14:11:25,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-18 14:11:25,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:25,996 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:25,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:11:25,997 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:25,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:25,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1598499737, now seen corresponding path program 1 times [2024-11-18 14:11:25,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:25,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27001235] [2024-11-18 14:11:25,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:25,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:26,225 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-18 14:11:26,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:26,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27001235] [2024-11-18 14:11:26,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27001235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:26,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:26,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:11:26,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591151795] [2024-11-18 14:11:26,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:26,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:11:26,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:26,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:11:26,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:11:26,228 INFO L87 Difference]: Start difference. First operand 5349 states and 7817 transitions. Second operand has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-18 14:11:26,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:26,584 INFO L93 Difference]: Finished difference Result 10507 states and 15410 transitions. [2024-11-18 14:11:26,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:11:26,589 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) Word has length 201 [2024-11-18 14:11:26,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:26,629 INFO L225 Difference]: With dead ends: 10507 [2024-11-18 14:11:26,629 INFO L226 Difference]: Without dead ends: 5357 [2024-11-18 14:11:26,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:11:26,643 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 3 mSDsluCounter, 5100 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5953 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:26,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5953 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:11:26,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5357 states. [2024-11-18 14:11:26,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5357 to 5357. [2024-11-18 14:11:26,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5357 states, 4009 states have (on average 1.4410077326016464) internal successors, (5777), 4108 states have internal predecessors, (5777), 892 states have call successors, (892), 440 states have call predecessors, (892), 455 states have return successors, (1160), 870 states have call predecessors, (1160), 854 states have call successors, (1160) [2024-11-18 14:11:26,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5357 states to 5357 states and 7829 transitions. [2024-11-18 14:11:26,822 INFO L78 Accepts]: Start accepts. Automaton has 5357 states and 7829 transitions. Word has length 201 [2024-11-18 14:11:26,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:26,823 INFO L471 AbstractCegarLoop]: Abstraction has 5357 states and 7829 transitions. [2024-11-18 14:11:26,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.666666666666668) internal successors, (118), 8 states have internal predecessors, (118), 4 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-18 14:11:26,823 INFO L276 IsEmpty]: Start isEmpty. Operand 5357 states and 7829 transitions. [2024-11-18 14:11:26,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-18 14:11:26,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:26,830 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:26,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:11:26,831 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:26,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:26,831 INFO L85 PathProgramCache]: Analyzing trace with hash 2043603845, now seen corresponding path program 1 times [2024-11-18 14:11:26,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:26,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41652848] [2024-11-18 14:11:26,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:26,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:27,067 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-18 14:11:27,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:27,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41652848] [2024-11-18 14:11:27,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41652848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:27,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:27,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:11:27,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790329232] [2024-11-18 14:11:27,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:27,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 14:11:27,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:27,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 14:11:27,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:11:27,070 INFO L87 Difference]: Start difference. First operand 5357 states and 7829 transitions. Second operand has 9 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-18 14:11:27,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:27,500 INFO L93 Difference]: Finished difference Result 10503 states and 15418 transitions. [2024-11-18 14:11:27,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:11:27,501 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 202 [2024-11-18 14:11:27,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:27,526 INFO L225 Difference]: With dead ends: 10503 [2024-11-18 14:11:27,527 INFO L226 Difference]: Without dead ends: 5365 [2024-11-18 14:11:27,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:11:27,544 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 4 mSDsluCounter, 5899 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6746 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:27,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6746 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:11:27,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5365 states. [2024-11-18 14:11:27,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5365 to 5365. [2024-11-18 14:11:27,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 4013 states have (on average 1.4405681535011214) internal successors, (5781), 4116 states have internal predecessors, (5781), 892 states have call successors, (892), 440 states have call predecessors, (892), 459 states have return successors, (1180), 870 states have call predecessors, (1180), 854 states have call successors, (1180) [2024-11-18 14:11:27,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 7853 transitions. [2024-11-18 14:11:27,785 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 7853 transitions. Word has length 202 [2024-11-18 14:11:27,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:27,786 INFO L471 AbstractCegarLoop]: Abstraction has 5365 states and 7853 transitions. [2024-11-18 14:11:27,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 17.571428571428573) internal successors, (123), 8 states have internal predecessors, (123), 4 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-18 14:11:27,786 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 7853 transitions. [2024-11-18 14:11:27,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-18 14:11:27,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:27,794 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:27,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:11:27,794 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:27,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:27,795 INFO L85 PathProgramCache]: Analyzing trace with hash -41191885, now seen corresponding path program 1 times [2024-11-18 14:11:27,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:27,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033949579] [2024-11-18 14:11:27,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:27,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:27,937 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:11:27,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:27,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033949579] [2024-11-18 14:11:27,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033949579] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:11:27,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387762654] [2024-11-18 14:11:27,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:27,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:27,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:11:27,942 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:11:27,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-18 14:11:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:28,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 14:11:28,256 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:11:28,273 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:11:28,273 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:11:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:11:28,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387762654] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:11:28,372 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:11:28,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-18 14:11:28,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499973631] [2024-11-18 14:11:28,373 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:11:28,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:11:28,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:28,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:11:28,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:11:28,374 INFO L87 Difference]: Start difference. First operand 5365 states and 7853 transitions. Second operand has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-18 14:11:28,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:28,661 INFO L93 Difference]: Finished difference Result 11743 states and 17467 transitions. [2024-11-18 14:11:28,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:11:28,662 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 203 [2024-11-18 14:11:28,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:28,692 INFO L225 Difference]: With dead ends: 11743 [2024-11-18 14:11:28,693 INFO L226 Difference]: Without dead ends: 7761 [2024-11-18 14:11:28,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 403 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:11:28,707 INFO L432 NwaCegarLoop]: 909 mSDtfsCounter, 634 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 3699 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:28,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 3699 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:11:28,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7761 states. [2024-11-18 14:11:28,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7761 to 7521. [2024-11-18 14:11:28,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7521 states, 5853 states have (on average 1.4824876131898173) internal successors, (8677), 5956 states have internal predecessors, (8677), 1208 states have call successors, (1208), 440 states have call predecessors, (1208), 459 states have return successors, (1536), 1186 states have call predecessors, (1536), 1170 states have call successors, (1536) [2024-11-18 14:11:28,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7521 states to 7521 states and 11421 transitions. [2024-11-18 14:11:28,913 INFO L78 Accepts]: Start accepts. Automaton has 7521 states and 11421 transitions. Word has length 203 [2024-11-18 14:11:28,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:28,915 INFO L471 AbstractCegarLoop]: Abstraction has 7521 states and 11421 transitions. [2024-11-18 14:11:28,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-18 14:11:28,915 INFO L276 IsEmpty]: Start isEmpty. Operand 7521 states and 11421 transitions. [2024-11-18 14:11:28,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-18 14:11:28,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:28,928 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:28,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-18 14:11:29,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:11:29,131 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:29,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:29,131 INFO L85 PathProgramCache]: Analyzing trace with hash 848627089, now seen corresponding path program 1 times [2024-11-18 14:11:29,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:29,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238750362] [2024-11-18 14:11:29,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:29,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:29,195 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:11:29,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:29,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238750362] [2024-11-18 14:11:29,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238750362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:29,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:29,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:29,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544782500] [2024-11-18 14:11:29,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:29,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:29,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:29,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:29,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:29,197 INFO L87 Difference]: Start difference. First operand 7521 states and 11421 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:29,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:29,488 INFO L93 Difference]: Finished difference Result 16675 states and 25625 transitions. [2024-11-18 14:11:29,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:29,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 207 [2024-11-18 14:11:29,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:29,553 INFO L225 Difference]: With dead ends: 16675 [2024-11-18 14:11:29,557 INFO L226 Difference]: Without dead ends: 9605 [2024-11-18 14:11:29,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:29,589 INFO L432 NwaCegarLoop]: 872 mSDtfsCounter, 163 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:29,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1720 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:29,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9605 states. [2024-11-18 14:11:30,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9605 to 9525. [2024-11-18 14:11:30,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9525 states, 7541 states have (on average 1.4986076117225833) internal successors, (11301), 7644 states have internal predecessors, (11301), 1524 states have call successors, (1524), 440 states have call predecessors, (1524), 459 states have return successors, (1892), 1502 states have call predecessors, (1892), 1486 states have call successors, (1892) [2024-11-18 14:11:30,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9525 states to 9525 states and 14717 transitions. [2024-11-18 14:11:30,162 INFO L78 Accepts]: Start accepts. Automaton has 9525 states and 14717 transitions. Word has length 207 [2024-11-18 14:11:30,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:30,166 INFO L471 AbstractCegarLoop]: Abstraction has 9525 states and 14717 transitions. [2024-11-18 14:11:30,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:30,167 INFO L276 IsEmpty]: Start isEmpty. Operand 9525 states and 14717 transitions. [2024-11-18 14:11:30,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-18 14:11:30,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:30,213 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:30,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:11:30,214 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:30,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:30,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2136309204, now seen corresponding path program 1 times [2024-11-18 14:11:30,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:30,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52840765] [2024-11-18 14:11:30,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:30,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:30,351 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:11:30,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:30,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52840765] [2024-11-18 14:11:30,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52840765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:30,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:30,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:30,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525677614] [2024-11-18 14:11:30,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:30,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:30,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:30,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:30,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:30,360 INFO L87 Difference]: Start difference. First operand 9525 states and 14717 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:30,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:30,745 INFO L93 Difference]: Finished difference Result 21663 states and 33789 transitions. [2024-11-18 14:11:30,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:30,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 208 [2024-11-18 14:11:30,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:30,804 INFO L225 Difference]: With dead ends: 21663 [2024-11-18 14:11:30,805 INFO L226 Difference]: Without dead ends: 12841 [2024-11-18 14:11:30,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:30,830 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 161 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:30,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 1718 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:30,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12841 states. [2024-11-18 14:11:31,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12841 to 12761. [2024-11-18 14:11:31,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12761 states, 10301 states have (on average 1.516454713134647) internal successors, (15621), 10404 states have internal predecessors, (15621), 2000 states have call successors, (2000), 440 states have call predecessors, (2000), 459 states have return successors, (2368), 1978 states have call predecessors, (2368), 1962 states have call successors, (2368) [2024-11-18 14:11:31,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12761 states to 12761 states and 19989 transitions. [2024-11-18 14:11:31,462 INFO L78 Accepts]: Start accepts. Automaton has 12761 states and 19989 transitions. Word has length 208 [2024-11-18 14:11:31,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:31,463 INFO L471 AbstractCegarLoop]: Abstraction has 12761 states and 19989 transitions. [2024-11-18 14:11:31,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:31,463 INFO L276 IsEmpty]: Start isEmpty. Operand 12761 states and 19989 transitions. [2024-11-18 14:11:31,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-18 14:11:31,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:31,492 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:31,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:11:31,492 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:31,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:31,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1910890328, now seen corresponding path program 1 times [2024-11-18 14:11:31,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:31,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963525760] [2024-11-18 14:11:31,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:31,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:31,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:31,575 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:11:31,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:31,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963525760] [2024-11-18 14:11:31,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963525760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:31,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:31,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:31,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201279328] [2024-11-18 14:11:31,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:31,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:31,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:31,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:31,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:31,577 INFO L87 Difference]: Start difference. First operand 12761 states and 19989 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:32,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:32,115 INFO L93 Difference]: Finished difference Result 29259 states and 46281 transitions. [2024-11-18 14:11:32,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:32,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 209 [2024-11-18 14:11:32,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:32,176 INFO L225 Difference]: With dead ends: 29259 [2024-11-18 14:11:32,176 INFO L226 Difference]: Without dead ends: 17829 [2024-11-18 14:11:32,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:32,205 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 159 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:32,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1711 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:32,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17829 states. [2024-11-18 14:11:32,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17829 to 17749. [2024-11-18 14:11:32,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17749 states, 14641 states have (on average 1.532477289802609) internal successors, (22437), 14744 states have internal predecessors, (22437), 2648 states have call successors, (2648), 440 states have call predecessors, (2648), 459 states have return successors, (3080), 2626 states have call predecessors, (3080), 2610 states have call successors, (3080) [2024-11-18 14:11:32,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17749 states to 17749 states and 28165 transitions. [2024-11-18 14:11:32,947 INFO L78 Accepts]: Start accepts. Automaton has 17749 states and 28165 transitions. Word has length 209 [2024-11-18 14:11:32,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:32,947 INFO L471 AbstractCegarLoop]: Abstraction has 17749 states and 28165 transitions. [2024-11-18 14:11:32,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:32,948 INFO L276 IsEmpty]: Start isEmpty. Operand 17749 states and 28165 transitions. [2024-11-18 14:11:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-18 14:11:32,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:32,982 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:32,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:11:32,982 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:32,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:32,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1451519676, now seen corresponding path program 1 times [2024-11-18 14:11:32,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:32,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956901932] [2024-11-18 14:11:32,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:32,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:11:33,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:33,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956901932] [2024-11-18 14:11:33,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956901932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:33,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:33,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:33,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318776912] [2024-11-18 14:11:33,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:33,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:33,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:33,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:33,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:33,046 INFO L87 Difference]: Start difference. First operand 17749 states and 28165 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:33,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:33,613 INFO L93 Difference]: Finished difference Result 41267 states and 66089 transitions. [2024-11-18 14:11:33,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:33,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 210 [2024-11-18 14:11:33,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:33,710 INFO L225 Difference]: With dead ends: 41267 [2024-11-18 14:11:33,711 INFO L226 Difference]: Without dead ends: 25885 [2024-11-18 14:11:33,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:33,751 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 157 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:33,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1711 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:33,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25885 states. [2024-11-18 14:11:34,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25885 to 25805. [2024-11-18 14:11:34,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25805 states, 21717 states have (on average 1.5463001335359396) internal successors, (33581), 21820 states have internal predecessors, (33581), 3628 states have call successors, (3628), 440 states have call predecessors, (3628), 459 states have return successors, (4164), 3606 states have call predecessors, (4164), 3590 states have call successors, (4164) [2024-11-18 14:11:35,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25805 states to 25805 states and 41373 transitions. [2024-11-18 14:11:35,019 INFO L78 Accepts]: Start accepts. Automaton has 25805 states and 41373 transitions. Word has length 210 [2024-11-18 14:11:35,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:35,020 INFO L471 AbstractCegarLoop]: Abstraction has 25805 states and 41373 transitions. [2024-11-18 14:11:35,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:35,020 INFO L276 IsEmpty]: Start isEmpty. Operand 25805 states and 41373 transitions. [2024-11-18 14:11:35,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-18 14:11:35,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:35,069 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:35,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 14:11:35,070 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:35,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:35,070 INFO L85 PathProgramCache]: Analyzing trace with hash -345299379, now seen corresponding path program 1 times [2024-11-18 14:11:35,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:35,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118068408] [2024-11-18 14:11:35,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:35,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:11:35,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:35,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118068408] [2024-11-18 14:11:35,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118068408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:35,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:35,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:35,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148806327] [2024-11-18 14:11:35,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:35,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:35,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:35,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:35,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:35,145 INFO L87 Difference]: Start difference. First operand 25805 states and 41373 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:36,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:36,352 INFO L93 Difference]: Finished difference Result 61239 states and 98881 transitions. [2024-11-18 14:11:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:36,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 211 [2024-11-18 14:11:36,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:36,499 INFO L225 Difference]: With dead ends: 61239 [2024-11-18 14:11:36,499 INFO L226 Difference]: Without dead ends: 39385 [2024-11-18 14:11:36,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:36,542 INFO L432 NwaCegarLoop]: 866 mSDtfsCounter, 155 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:36,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1713 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:36,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39385 states. [2024-11-18 14:11:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39385 to 39305. [2024-11-18 14:11:37,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39305 states, 33245 states have (on average 1.5484132952323657) internal successors, (51477), 33348 states have internal predecessors, (51477), 5600 states have call successors, (5600), 440 states have call predecessors, (5600), 459 states have return successors, (6312), 5578 states have call predecessors, (6312), 5562 states have call successors, (6312) [2024-11-18 14:11:38,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39305 states to 39305 states and 63389 transitions. [2024-11-18 14:11:38,246 INFO L78 Accepts]: Start accepts. Automaton has 39305 states and 63389 transitions. Word has length 211 [2024-11-18 14:11:38,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:38,247 INFO L471 AbstractCegarLoop]: Abstraction has 39305 states and 63389 transitions. [2024-11-18 14:11:38,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:38,247 INFO L276 IsEmpty]: Start isEmpty. Operand 39305 states and 63389 transitions. [2024-11-18 14:11:38,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-18 14:11:38,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:38,310 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:38,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 14:11:38,310 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:38,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:38,311 INFO L85 PathProgramCache]: Analyzing trace with hash 189293511, now seen corresponding path program 1 times [2024-11-18 14:11:38,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:38,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954236699] [2024-11-18 14:11:38,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:38,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:38,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:38,368 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:11:38,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:38,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954236699] [2024-11-18 14:11:38,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954236699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:38,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:38,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:38,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384806356] [2024-11-18 14:11:38,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:38,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:38,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:38,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:38,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:38,370 INFO L87 Difference]: Start difference. First operand 39305 states and 63389 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:40,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:40,133 INFO L93 Difference]: Finished difference Result 97051 states and 157941 transitions. [2024-11-18 14:11:40,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:40,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 212 [2024-11-18 14:11:40,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:40,308 INFO L225 Difference]: With dead ends: 97051 [2024-11-18 14:11:40,308 INFO L226 Difference]: Without dead ends: 63681 [2024-11-18 14:11:40,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:40,363 INFO L432 NwaCegarLoop]: 863 mSDtfsCounter, 153 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:40,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1716 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:40,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63681 states. [2024-11-18 14:11:42,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63681 to 63601. [2024-11-18 14:11:42,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63601 states, 54253 states have (on average 1.55724107422631) internal successors, (84485), 54356 states have internal predecessors, (84485), 8888 states have call successors, (8888), 440 states have call predecessors, (8888), 459 states have return successors, (9912), 8866 states have call predecessors, (9912), 8850 states have call successors, (9912) [2024-11-18 14:11:42,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63601 states to 63601 states and 103285 transitions. [2024-11-18 14:11:42,975 INFO L78 Accepts]: Start accepts. Automaton has 63601 states and 103285 transitions. Word has length 212 [2024-11-18 14:11:42,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:42,976 INFO L471 AbstractCegarLoop]: Abstraction has 63601 states and 103285 transitions. [2024-11-18 14:11:42,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:42,977 INFO L276 IsEmpty]: Start isEmpty. Operand 63601 states and 103285 transitions. [2024-11-18 14:11:43,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-18 14:11:43,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:43,097 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:43,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 14:11:43,097 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:43,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:43,098 INFO L85 PathProgramCache]: Analyzing trace with hash -951356812, now seen corresponding path program 1 times [2024-11-18 14:11:43,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:43,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854524132] [2024-11-18 14:11:43,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:43,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:11:43,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:43,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854524132] [2024-11-18 14:11:43,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854524132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:43,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:43,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:43,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008724019] [2024-11-18 14:11:43,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:43,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:43,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:43,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:43,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:43,202 INFO L87 Difference]: Start difference. First operand 63601 states and 103285 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:45,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:45,831 INFO L93 Difference]: Finished difference Result 152287 states and 246353 transitions. [2024-11-18 14:11:45,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:45,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 213 [2024-11-18 14:11:45,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:46,180 INFO L225 Difference]: With dead ends: 152287 [2024-11-18 14:11:46,180 INFO L226 Difference]: Without dead ends: 99157 [2024-11-18 14:11:46,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:46,284 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 151 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:46,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1699 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:46,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99157 states. [2024-11-18 14:11:50,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99157 to 99077. [2024-11-18 14:11:50,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99077 states, 84917 states have (on average 1.5327555142079914) internal successors, (130157), 85020 states have internal predecessors, (130157), 13700 states have call successors, (13700), 440 states have call predecessors, (13700), 459 states have return successors, (15300), 13678 states have call predecessors, (15300), 13662 states have call successors, (15300) [2024-11-18 14:11:50,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99077 states to 99077 states and 159157 transitions. [2024-11-18 14:11:50,493 INFO L78 Accepts]: Start accepts. Automaton has 99077 states and 159157 transitions. Word has length 213 [2024-11-18 14:11:50,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:11:50,494 INFO L471 AbstractCegarLoop]: Abstraction has 99077 states and 159157 transitions. [2024-11-18 14:11:50,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:50,494 INFO L276 IsEmpty]: Start isEmpty. Operand 99077 states and 159157 transitions. [2024-11-18 14:11:50,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-18 14:11:50,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:11:50,628 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:11:50,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 14:11:50,628 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:11:50,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:11:50,629 INFO L85 PathProgramCache]: Analyzing trace with hash -137531953, now seen corresponding path program 1 times [2024-11-18 14:11:50,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:11:50,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038046031] [2024-11-18 14:11:50,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:11:50,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:11:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:11:51,091 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:11:51,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:11:51,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038046031] [2024-11-18 14:11:51,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038046031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:11:51,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:11:51,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:11:51,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214416874] [2024-11-18 14:11:51,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:11:51,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:11:51,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:11:51,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:11:51,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:51,092 INFO L87 Difference]: Start difference. First operand 99077 states and 159157 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:11:55,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:11:55,925 INFO L93 Difference]: Finished difference Result 259699 states and 418945 transitions. [2024-11-18 14:11:55,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:11:55,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 214 [2024-11-18 14:11:55,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:11:56,572 INFO L225 Difference]: With dead ends: 259699 [2024-11-18 14:11:56,576 INFO L226 Difference]: Without dead ends: 174341 [2024-11-18 14:11:56,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:11:56,738 INFO L432 NwaCegarLoop]: 861 mSDtfsCounter, 149 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:11:56,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 1715 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:11:56,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174341 states. [2024-11-18 14:12:02,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174341 to 174261. [2024-11-18 14:12:02,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174261 states, 150301 states have (on average 1.5339685032035715) internal successors, (230557), 150404 states have internal predecessors, (230557), 23500 states have call successors, (23500), 440 states have call predecessors, (23500), 459 states have return successors, (26196), 23478 states have call predecessors, (26196), 23462 states have call successors, (26196) [2024-11-18 14:12:03,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174261 states to 174261 states and 280253 transitions. [2024-11-18 14:12:03,563 INFO L78 Accepts]: Start accepts. Automaton has 174261 states and 280253 transitions. Word has length 214 [2024-11-18 14:12:03,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:12:03,564 INFO L471 AbstractCegarLoop]: Abstraction has 174261 states and 280253 transitions. [2024-11-18 14:12:03,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-18 14:12:03,565 INFO L276 IsEmpty]: Start isEmpty. Operand 174261 states and 280253 transitions. [2024-11-18 14:12:03,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-18 14:12:03,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:12:03,813 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:12:03,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-18 14:12:03,814 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:12:03,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:12:03,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1062016711, now seen corresponding path program 1 times [2024-11-18 14:12:03,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:12:03,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252692251] [2024-11-18 14:12:03,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:12:03,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:12:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:12:03,884 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-18 14:12:03,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:12:03,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252692251] [2024-11-18 14:12:03,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252692251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:12:03,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:12:03,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:12:03,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468752995] [2024-11-18 14:12:03,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:12:03,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:12:03,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:12:03,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:12:03,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:12:03,886 INFO L87 Difference]: Start difference. First operand 174261 states and 280253 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)