./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.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 aa31ba7b6b6c5a20100c4ed7bd6bb53a6560ae9fc8557479e094a44cc1bad058 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:01:43,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:01:43,277 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:01:43,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:01:43,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:01:43,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:01:43,297 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:01:43,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:01:43,297 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:01:43,298 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:01:43,298 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:01:43,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:01:43,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:01:43,308 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:01:43,308 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:01:43,308 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:01:43,309 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:01:43,309 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:01:43,309 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:01:43,309 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:01:43,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:01:43,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:01:43,311 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:01:43,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:01:43,311 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:01:43,311 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:01:43,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:01:43,312 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:01:43,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:01:43,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:01:43,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:01:43,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:01:43,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:01:43,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:01:43,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:01:43,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:01:43,315 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:01:43,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:01:43,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:01:43,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:01:43,315 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:01:43,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:01:43,316 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa31ba7b6b6c5a20100c4ed7bd6bb53a6560ae9fc8557479e094a44cc1bad058 [2024-11-19 22:01:43,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:01:43,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:01:43,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:01:43,523 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:01:43,523 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:01:43,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.cil.c [2024-11-19 22:01:44,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:01:45,187 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:01:45,188 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.cil.c [2024-11-19 22:01:45,216 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e54f9733/b9bc81d66f0044c0a4c844ec5c0da449/FLAG57eda10d1 [2024-11-19 22:01:45,388 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e54f9733/b9bc81d66f0044c0a4c844ec5c0da449 [2024-11-19 22:01:45,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:01:45,395 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:01:45,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:01:45,399 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:01:45,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:01:45,405 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:01:45" (1/1) ... [2024-11-19 22:01:45,406 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1f867b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:45, skipping insertion in model container [2024-11-19 22:01:45,406 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:01:45" (1/1) ... [2024-11-19 22:01:45,462 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:01:45,815 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_spec8_product31.cil.c[36672,36685] [2024-11-19 22:01:45,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:01:45,961 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:01:45,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-11-19 22:01:45,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1128] [2024-11-19 22:01:45,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1494] [2024-11-19 22:01:45,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1503] [2024-11-19 22:01:45,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1521] [2024-11-19 22:01:45,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1680] [2024-11-19 22:01:45,971 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2082] [2024-11-19 22:01:45,971 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2120] [2024-11-19 22:01:45,971 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2484] [2024-11-19 22:01:45,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2769] [2024-11-19 22:01:45,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [2985] [2024-11-19 22:01:46,019 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_spec8_product31.cil.c[36672,36685] [2024-11-19 22:01:46,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:01:46,086 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:01:46,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46 WrapperNode [2024-11-19 22:01:46,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:01:46,088 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:01:46,088 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:01:46,088 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:01:46,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (1/1) ... [2024-11-19 22:01:46,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (1/1) ... [2024-11-19 22:01:46,174 INFO L138 Inliner]: procedures = 132, calls = 207, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 1043 [2024-11-19 22:01:46,174 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:01:46,175 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:01:46,175 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:01:46,175 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:01:46,185 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (1/1) ... [2024-11-19 22:01:46,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (1/1) ... [2024-11-19 22:01:46,192 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (1/1) ... [2024-11-19 22:01:46,220 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]. [2024-11-19 22:01:46,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (1/1) ... [2024-11-19 22:01:46,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (1/1) ... [2024-11-19 22:01:46,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (1/1) ... [2024-11-19 22:01:46,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (1/1) ... [2024-11-19 22:01:46,239 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (1/1) ... [2024-11-19 22:01:46,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (1/1) ... [2024-11-19 22:01:46,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:01:46,247 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:01:46,247 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:01:46,247 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:01:46,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (1/1) ... [2024-11-19 22:01:46,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:01:46,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:01:46,290 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) [2024-11-19 22:01:46,292 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 [2024-11-19 22:01:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-19 22:01:46,328 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-19 22:01:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-19 22:01:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-19 22:01:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-19 22:01:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-19 22:01:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-19 22:01:46,329 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-19 22:01:46,329 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-19 22:01:46,330 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-19 22:01:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-19 22:01:46,330 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-19 22:01:46,330 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-19 22:01:46,330 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-19 22:01:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-19 22:01:46,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-19 22:01:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-19 22:01:46,331 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-19 22:01:46,331 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-19 22:01:46,332 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-19 22:01:46,332 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-19 22:01:46,333 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-19 22:01:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-19 22:01:46,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-19 22:01:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:01:46,333 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-19 22:01:46,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-19 22:01:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-19 22:01:46,334 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-19 22:01:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-19 22:01:46,334 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-19 22:01:46,334 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-19 22:01:46,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-19 22:01:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-19 22:01:46,335 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-19 22:01:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-19 22:01:46,335 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-19 22:01:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-19 22:01:46,335 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-19 22:01:46,335 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-19 22:01:46,336 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-19 22:01:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-19 22:01:46,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-19 22:01:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-19 22:01:46,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-19 22:01:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:01:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 22:01:46,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 22:01:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 22:01:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-19 22:01:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-19 22:01:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:01:46,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:01:46,518 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:01:46,520 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:01:47,340 INFO L? ?]: Removed 479 outVars from TransFormulas that were not future-live. [2024-11-19 22:01:47,341 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:01:47,367 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:01:47,368 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 22:01:47,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:01:47 BoogieIcfgContainer [2024-11-19 22:01:47,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:01:47,373 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:01:47,373 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:01:47,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:01:47,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:01:45" (1/3) ... [2024-11-19 22:01:47,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285bf601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:01:47, skipping insertion in model container [2024-11-19 22:01:47,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:01:46" (2/3) ... [2024-11-19 22:01:47,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285bf601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:01:47, skipping insertion in model container [2024-11-19 22:01:47,380 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:01:47" (3/3) ... [2024-11-19 22:01:47,381 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product31.cil.c [2024-11-19 22:01:47,404 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:01:47,404 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:01:47,475 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:01:47,481 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;@11793e2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:01:47,481 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:01:47,489 INFO L276 IsEmpty]: Start isEmpty. Operand has 370 states, 286 states have (on average 1.5) internal successors, (429), 290 states have internal predecessors, (429), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-19 22:01:47,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-19 22:01:47,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:01:47,508 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:01:47,508 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:01:47,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:01:47,513 INFO L85 PathProgramCache]: Analyzing trace with hash -873528409, now seen corresponding path program 1 times [2024-11-19 22:01:47,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:01:47,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594186621] [2024-11-19 22:01:47,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:47,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:01:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:01:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:01:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:01:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:01:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 22:01:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 22:01:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-19 22:01:48,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 22:01:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 22:01:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 22:01:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 22:01:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-19 22:01:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-19 22:01:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 22:01:48,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:01:48,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594186621] [2024-11-19 22:01:48,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594186621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:01:48,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102220118] [2024-11-19 22:01:48,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:48,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:01:48,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:01:48,194 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) [2024-11-19 22:01:48,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 22:01:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:48,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 22:01:48,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:01:48,528 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 22:01:48,528 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:01:48,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102220118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:01:48,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:01:48,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-19 22:01:48,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713562765] [2024-11-19 22:01:48,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:01:48,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 22:01:48,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:01:48,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 22:01:48,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:01:48,551 INFO L87 Difference]: Start difference. First operand has 370 states, 286 states have (on average 1.5) internal successors, (429), 290 states have internal predecessors, (429), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:01:48,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:01:48,598 INFO L93 Difference]: Finished difference Result 586 states and 848 transitions. [2024-11-19 22:01:48,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 22:01:48,600 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-19 22:01:48,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:01:48,613 INFO L225 Difference]: With dead ends: 586 [2024-11-19 22:01:48,613 INFO L226 Difference]: Without dead ends: 363 [2024-11-19 22:01:48,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:01:48,619 INFO L432 NwaCegarLoop]: 543 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, 543 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 [2024-11-19 22:01:48,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:01:48,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-19 22:01:48,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-19 22:01:48,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 280 states have (on average 1.4928571428571429) internal successors, (418), 283 states have internal predecessors, (418), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-19 22:01:48,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 535 transitions. [2024-11-19 22:01:48,706 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 535 transitions. Word has length 101 [2024-11-19 22:01:48,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:01:48,707 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 535 transitions. [2024-11-19 22:01:48,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:01:48,707 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 535 transitions. [2024-11-19 22:01:48,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-19 22:01:48,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:01:48,711 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:01:48,719 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 22:01:48,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 22:01:48,916 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:01:48,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:01:48,916 INFO L85 PathProgramCache]: Analyzing trace with hash -238493020, now seen corresponding path program 1 times [2024-11-19 22:01:48,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:01:48,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863705702] [2024-11-19 22:01:48,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:48,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:01:48,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:01:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:01:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:01:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:01:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 22:01:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 22:01:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 22:01:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-19 22:01:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 22:01:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-19 22:01:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 22:01:49,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 22:01:49,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-19 22:01:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,242 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 22:01:49,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:01:49,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863705702] [2024-11-19 22:01:49,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863705702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:01:49,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147040938] [2024-11-19 22:01:49,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:49,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:01:49,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:01:49,245 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) [2024-11-19 22:01:49,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 22:01:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:49,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 22:01:49,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:01:49,554 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 22:01:49,554 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:01:49,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147040938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:01:49,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:01:49,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-19 22:01:49,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90995116] [2024-11-19 22:01:49,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:01:49,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:01:49,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:01:49,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:01:49,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 22:01:49,557 INFO L87 Difference]: Start difference. First operand 363 states and 535 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:01:49,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:01:49,595 INFO L93 Difference]: Finished difference Result 576 states and 829 transitions. [2024-11-19 22:01:49,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:01:49,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2024-11-19 22:01:49,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:01:49,600 INFO L225 Difference]: With dead ends: 576 [2024-11-19 22:01:49,600 INFO L226 Difference]: Without dead ends: 366 [2024-11-19 22:01:49,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 22:01:49,602 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 1 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1064 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 [2024-11-19 22:01:49,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1064 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:01:49,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2024-11-19 22:01:49,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 365. [2024-11-19 22:01:49,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 282 states have (on average 1.4893617021276595) internal successors, (420), 285 states have internal predecessors, (420), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-19 22:01:49,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 537 transitions. [2024-11-19 22:01:49,624 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 537 transitions. Word has length 102 [2024-11-19 22:01:49,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:01:49,624 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 537 transitions. [2024-11-19 22:01:49,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:01:49,624 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 537 transitions. [2024-11-19 22:01:49,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 22:01:49,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:01:49,627 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:01:49,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 22:01:49,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-19 22:01:49,832 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:01:49,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:01:49,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1960641683, now seen corresponding path program 1 times [2024-11-19 22:01:49,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:01:49,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727171133] [2024-11-19 22:01:49,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:49,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:01:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:01:50,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:01:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:01:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:01:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 22:01:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 22:01:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-19 22:01:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-19 22:01:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-19 22:01:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 22:01:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 22:01:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-19 22:01:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-19 22:01:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,189 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 22:01:50,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:01:50,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727171133] [2024-11-19 22:01:50,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727171133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:01:50,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623542186] [2024-11-19 22:01:50,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:50,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:01:50,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:01:50,196 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) [2024-11-19 22:01:50,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 22:01:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 22:01:50,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:01:50,449 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-19 22:01:50,450 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:01:50,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623542186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:01:50,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:01:50,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-19 22:01:50,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955597602] [2024-11-19 22:01:50,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:01:50,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:01:50,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:01:50,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:01:50,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 22:01:50,453 INFO L87 Difference]: Start difference. First operand 365 states and 537 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:01:50,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:01:50,484 INFO L93 Difference]: Finished difference Result 760 states and 1133 transitions. [2024-11-19 22:01:50,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:01:50,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-11-19 22:01:50,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:01:50,487 INFO L225 Difference]: With dead ends: 760 [2024-11-19 22:01:50,487 INFO L226 Difference]: Without dead ends: 422 [2024-11-19 22:01:50,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-19 22:01:50,490 INFO L432 NwaCegarLoop]: 542 mSDtfsCounter, 107 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1029 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 [2024-11-19 22:01:50,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1029 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:01:50,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-19 22:01:50,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 414. [2024-11-19 22:01:50,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 320 states have (on average 1.50625) internal successors, (482), 323 states have internal predecessors, (482), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-19 22:01:50,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 621 transitions. [2024-11-19 22:01:50,517 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 621 transitions. Word has length 108 [2024-11-19 22:01:50,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:01:50,518 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 621 transitions. [2024-11-19 22:01:50,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:01:50,518 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 621 transitions. [2024-11-19 22:01:50,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-19 22:01:50,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:01:50,522 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:01:50,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 22:01:50,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:01:50,724 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:01:50,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:01:50,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1642716370, now seen corresponding path program 1 times [2024-11-19 22:01:50,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:01:50,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923618480] [2024-11-19 22:01:50,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:50,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:01:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:01:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:01:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:01:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 22:01:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 22:01:50,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 22:01:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-19 22:01:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-19 22:01:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 22:01:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 22:01:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 22:01:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-19 22:01:50,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-19 22:01:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:50,890 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 22:01:50,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:01:50,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923618480] [2024-11-19 22:01:50,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923618480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:01:50,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807943092] [2024-11-19 22:01:50,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:50,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:01:50,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:01:50,893 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) [2024-11-19 22:01:50,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 22:01:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 22:01:51,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:01:51,192 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 22:01:51,192 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:01:51,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807943092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:01:51,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:01:51,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-19 22:01:51,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753477224] [2024-11-19 22:01:51,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:01:51,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:01:51,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:01:51,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:01:51,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:01:51,194 INFO L87 Difference]: Start difference. First operand 414 states and 621 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 22:01:51,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:01:51,268 INFO L93 Difference]: Finished difference Result 819 states and 1232 transitions. [2024-11-19 22:01:51,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:01:51,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 109 [2024-11-19 22:01:51,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:01:51,271 INFO L225 Difference]: With dead ends: 819 [2024-11-19 22:01:51,271 INFO L226 Difference]: Without dead ends: 416 [2024-11-19 22:01:51,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:01:51,273 INFO L432 NwaCegarLoop]: 527 mSDtfsCounter, 2 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2097 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:01:51,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2097 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:01:51,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-19 22:01:51,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2024-11-19 22:01:51,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 321 states have (on average 1.5046728971962617) internal successors, (483), 325 states have internal predecessors, (483), 70 states have call successors, (70), 23 states have call predecessors, (70), 24 states have return successors, (71), 69 states have call predecessors, (71), 69 states have call successors, (71) [2024-11-19 22:01:51,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 624 transitions. [2024-11-19 22:01:51,293 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 624 transitions. Word has length 109 [2024-11-19 22:01:51,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:01:51,295 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 624 transitions. [2024-11-19 22:01:51,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 22:01:51,295 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 624 transitions. [2024-11-19 22:01:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 22:01:51,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:01:51,296 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:01:51,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 22:01:51,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:01:51,497 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:01:51,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:01:51,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1181584103, now seen corresponding path program 1 times [2024-11-19 22:01:51,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:01:51,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592270401] [2024-11-19 22:01:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:51,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:01:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:01:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:01:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:01:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:01:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 22:01:51,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 22:01:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-19 22:01:51,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 22:01:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-19 22:01:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 22:01:51,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-19 22:01:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-19 22:01:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-19 22:01:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:51,803 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 22:01:51,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:01:51,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592270401] [2024-11-19 22:01:51,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592270401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:01:51,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202908597] [2024-11-19 22:01:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:51,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:01:51,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:01:51,805 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) [2024-11-19 22:01:51,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 22:01:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 22:01:52,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:01:52,068 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-19 22:01:52,069 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 22:01:52,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202908597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:01:52,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 22:01:52,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-19 22:01:52,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750928958] [2024-11-19 22:01:52,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:01:52,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:01:52,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:01:52,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:01:52,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:01:52,070 INFO L87 Difference]: Start difference. First operand 416 states and 624 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 22:01:52,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:01:52,118 INFO L93 Difference]: Finished difference Result 821 states and 1237 transitions. [2024-11-19 22:01:52,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:01:52,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-11-19 22:01:52,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:01:52,120 INFO L225 Difference]: With dead ends: 821 [2024-11-19 22:01:52,120 INFO L226 Difference]: Without dead ends: 418 [2024-11-19 22:01:52,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-19 22:01:52,122 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 2 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:01:52,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2083 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:01:52,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-19 22:01:52,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2024-11-19 22:01:52,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 322 states have (on average 1.5031055900621118) internal successors, (484), 327 states have internal predecessors, (484), 70 states have call successors, (70), 23 states have call predecessors, (70), 25 states have return successors, (76), 69 states have call predecessors, (76), 69 states have call successors, (76) [2024-11-19 22:01:52,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 630 transitions. [2024-11-19 22:01:52,137 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 630 transitions. Word has length 110 [2024-11-19 22:01:52,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:01:52,137 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 630 transitions. [2024-11-19 22:01:52,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 22:01:52,138 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 630 transitions. [2024-11-19 22:01:52,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-19 22:01:52,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:01:52,139 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:01:52,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 22:01:52,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:01:52,344 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:01:52,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:01:52,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1225166785, now seen corresponding path program 1 times [2024-11-19 22:01:52,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:01:52,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318729570] [2024-11-19 22:01:52,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:52,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:01:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:01:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:01:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:01:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:01:52,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:01:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-19 22:01:52,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 22:01:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-19 22:01:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-19 22:01:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-19 22:01:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-19 22:01:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-19 22:01:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 22:01:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:52,512 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 22:01:52,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:01:52,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318729570] [2024-11-19 22:01:52,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318729570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:01:52,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:01:52,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:01:52,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610222093] [2024-11-19 22:01:52,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:01:52,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:01:52,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:01:52,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:01:52,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:01:52,514 INFO L87 Difference]: Start difference. First operand 418 states and 630 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 22:01:54,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:01:54,322 INFO L93 Difference]: Finished difference Result 999 states and 1504 transitions. [2024-11-19 22:01:54,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 22:01:54,323 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2024-11-19 22:01:54,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:01:54,326 INFO L225 Difference]: With dead ends: 999 [2024-11-19 22:01:54,326 INFO L226 Difference]: Without dead ends: 604 [2024-11-19 22:01:54,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:01:54,328 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1306 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2661 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 3088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 2661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 22:01:54,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 1108 Invalid, 3088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 2661 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 22:01:54,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-19 22:01:54,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 418. [2024-11-19 22:01:54,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 322 states have (on average 1.5031055900621118) internal successors, (484), 327 states have internal predecessors, (484), 70 states have call successors, (70), 23 states have call predecessors, (70), 25 states have return successors, (75), 69 states have call predecessors, (75), 69 states have call successors, (75) [2024-11-19 22:01:54,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 629 transitions. [2024-11-19 22:01:54,353 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 629 transitions. Word has length 111 [2024-11-19 22:01:54,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:01:54,353 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 629 transitions. [2024-11-19 22:01:54,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 22:01:54,353 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 629 transitions. [2024-11-19 22:01:54,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-19 22:01:54,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:01:54,355 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:01:54,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:01:54,355 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:01:54,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:01:54,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1394398968, now seen corresponding path program 2 times [2024-11-19 22:01:54,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:01:54,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462901557] [2024-11-19 22:01:54,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:54,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:01:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:01:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:01:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:01:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:01:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:01:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-19 22:01:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-19 22:01:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-19 22:01:54,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 22:01:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 22:01:54,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-19 22:01:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-19 22:01:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-19 22:01:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:54,545 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-19 22:01:54,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:01:54,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462901557] [2024-11-19 22:01:54,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462901557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:01:54,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:01:54,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 22:01:54,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14896976] [2024-11-19 22:01:54,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:01:54,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 22:01:54,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:01:54,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 22:01:54,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-19 22:01:54,547 INFO L87 Difference]: Start difference. First operand 418 states and 629 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 22:01:56,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:01:56,287 INFO L93 Difference]: Finished difference Result 1001 states and 1507 transitions. [2024-11-19 22:01:56,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 22:01:56,287 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2024-11-19 22:01:56,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:01:56,290 INFO L225 Difference]: With dead ends: 1001 [2024-11-19 22:01:56,290 INFO L226 Difference]: Without dead ends: 606 [2024-11-19 22:01:56,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:01:56,292 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1247 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2733 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 2733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 22:01:56,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 1108 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 2733 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 22:01:56,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-19 22:01:56,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 420. [2024-11-19 22:01:56,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 323 states have (on average 1.501547987616099) internal successors, (485), 329 states have internal predecessors, (485), 70 states have call successors, (70), 23 states have call predecessors, (70), 26 states have return successors, (77), 69 states have call predecessors, (77), 69 states have call successors, (77) [2024-11-19 22:01:56,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 632 transitions. [2024-11-19 22:01:56,315 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 632 transitions. Word has length 112 [2024-11-19 22:01:56,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:01:56,316 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 632 transitions. [2024-11-19 22:01:56,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-19 22:01:56,316 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 632 transitions. [2024-11-19 22:01:56,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-19 22:01:56,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:01:56,317 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:01:56,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:01:56,318 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:01:56,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:01:56,318 INFO L85 PathProgramCache]: Analyzing trace with hash 2017001956, now seen corresponding path program 1 times [2024-11-19 22:01:56,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:01:56,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718247748] [2024-11-19 22:01:56,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:56,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:01:56,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:01:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:01:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:01:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:01:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:01:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:01:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-19 22:01:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-19 22:01:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-19 22:01:56,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 22:01:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 22:01:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-19 22:01:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 22:01:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 22:01:56,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:01:56,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718247748] [2024-11-19 22:01:56,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718247748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:01:56,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:01:56,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 22:01:56,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776457179] [2024-11-19 22:01:56,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:01:56,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 22:01:56,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:01:56,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 22:01:56,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:01:56,480 INFO L87 Difference]: Start difference. First operand 420 states and 632 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-19 22:01:58,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:01:58,577 INFO L93 Difference]: Finished difference Result 999 states and 1502 transitions. [2024-11-19 22:01:58,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:01:58,578 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 113 [2024-11-19 22:01:58,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:01:58,582 INFO L225 Difference]: With dead ends: 999 [2024-11-19 22:01:58,582 INFO L226 Difference]: Without dead ends: 606 [2024-11-19 22:01:58,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-19 22:01:58,585 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1368 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4092 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 4555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 4092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-19 22:01:58,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 1535 Invalid, 4555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 4092 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-19 22:01:58,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-19 22:01:58,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 420. [2024-11-19 22:01:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 323 states have (on average 1.501547987616099) internal successors, (485), 329 states have internal predecessors, (485), 70 states have call successors, (70), 23 states have call predecessors, (70), 26 states have return successors, (76), 69 states have call predecessors, (76), 69 states have call successors, (76) [2024-11-19 22:01:58,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 631 transitions. [2024-11-19 22:01:58,610 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 631 transitions. Word has length 113 [2024-11-19 22:01:58,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:01:58,611 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 631 transitions. [2024-11-19 22:01:58,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-19 22:01:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 631 transitions. [2024-11-19 22:01:58,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-19 22:01:58,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:01:58,612 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:01:58,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:01:58,612 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:01:58,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:01:58,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1618188784, now seen corresponding path program 2 times [2024-11-19 22:01:58,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:01:58,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817594367] [2024-11-19 22:01:58,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:01:58,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:01:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:01:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:01:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:01:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:01:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:01:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:01:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-19 22:01:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-19 22:01:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 22:01:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 22:01:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-19 22:01:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-19 22:01:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-19 22:01:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:01:58,857 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-19 22:01:58,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:01:58,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817594367] [2024-11-19 22:01:58,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817594367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:01:58,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:01:58,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 22:01:58,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716312380] [2024-11-19 22:01:58,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:01:58,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 22:01:58,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:01:58,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 22:01:58,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:01:58,860 INFO L87 Difference]: Start difference. First operand 420 states and 631 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-19 22:02:01,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:01,546 INFO L93 Difference]: Finished difference Result 1001 states and 1508 transitions. [2024-11-19 22:02:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 22:02:01,547 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 114 [2024-11-19 22:02:01,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:01,563 INFO L225 Difference]: With dead ends: 1001 [2024-11-19 22:02:01,564 INFO L226 Difference]: Without dead ends: 608 [2024-11-19 22:02:01,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-19 22:02:01,567 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1251 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4589 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 5007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 4589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:01,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 1536 Invalid, 5007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 4589 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-19 22:02:01,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-19 22:02:01,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 422. [2024-11-19 22:02:01,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 324 states have (on average 1.5) internal successors, (486), 331 states have internal predecessors, (486), 70 states have call successors, (70), 23 states have call predecessors, (70), 27 states have return successors, (81), 69 states have call predecessors, (81), 69 states have call successors, (81) [2024-11-19 22:02:01,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 637 transitions. [2024-11-19 22:02:01,642 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 637 transitions. Word has length 114 [2024-11-19 22:02:01,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:01,643 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 637 transitions. [2024-11-19 22:02:01,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-19 22:02:01,643 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 637 transitions. [2024-11-19 22:02:01,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 22:02:01,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:01,649 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:01,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 22:02:01,649 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:01,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:01,649 INFO L85 PathProgramCache]: Analyzing trace with hash -278494295, now seen corresponding path program 1 times [2024-11-19 22:02:01,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:01,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220147285] [2024-11-19 22:02:01,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:01,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-19 22:02:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-19 22:02:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 22:02:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 22:02:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-19 22:02:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-19 22:02:01,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-19 22:02:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:01,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:01,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220147285] [2024-11-19 22:02:01,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220147285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:02:01,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862322939] [2024-11-19 22:02:01,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:01,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:02:01,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:02:01,938 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) [2024-11-19 22:02:01,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 22:02:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:02,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 22:02:02,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:02:02,187 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:02,189 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:02:02,273 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:02,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862322939] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:02:02,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:02:02,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-11-19 22:02:02,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857003131] [2024-11-19 22:02:02,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:02:02,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 22:02:02,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:02,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 22:02:02,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-19 22:02:02,277 INFO L87 Difference]: Start difference. First operand 422 states and 637 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-19 22:02:03,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:03,834 INFO L93 Difference]: Finished difference Result 1170 states and 1836 transitions. [2024-11-19 22:02:03,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 22:02:03,834 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 115 [2024-11-19 22:02:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:03,839 INFO L225 Difference]: With dead ends: 1170 [2024-11-19 22:02:03,839 INFO L226 Difference]: Without dead ends: 960 [2024-11-19 22:02:03,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:02:03,841 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 1859 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 1716 mSolverCounterSat, 582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1904 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 2298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 1716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:03,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1904 Valid, 1313 Invalid, 2298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 1716 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 22:02:03,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-11-19 22:02:03,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 750. [2024-11-19 22:02:03,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 588 states have (on average 1.5714285714285714) internal successors, (924), 595 states have internal predecessors, (924), 134 states have call successors, (134), 23 states have call predecessors, (134), 27 states have return successors, (155), 133 states have call predecessors, (155), 133 states have call successors, (155) [2024-11-19 22:02:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1213 transitions. [2024-11-19 22:02:03,872 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1213 transitions. Word has length 115 [2024-11-19 22:02:03,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:03,872 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 1213 transitions. [2024-11-19 22:02:03,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 7 states have internal predecessors, (111), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-19 22:02:03,873 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1213 transitions. [2024-11-19 22:02:03,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-19 22:02:03,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:03,875 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:03,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 22:02:04,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:02:04,076 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:04,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:04,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2073879302, now seen corresponding path program 1 times [2024-11-19 22:02:04,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:04,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176083525] [2024-11-19 22:02:04,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:04,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:04,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-19 22:02:04,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 22:02:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 22:02:04,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-19 22:02:04,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-19 22:02:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-19 22:02:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:02:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:04,165 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:04,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:04,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176083525] [2024-11-19 22:02:04,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176083525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:04,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:04,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:02:04,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467546284] [2024-11-19 22:02:04,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:04,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:02:04,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:04,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:02:04,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:02:04,166 INFO L87 Difference]: Start difference. First operand 750 states and 1213 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:05,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:05,620 INFO L93 Difference]: Finished difference Result 1951 states and 3207 transitions. [2024-11-19 22:02:05,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:02:05,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2024-11-19 22:02:05,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:05,627 INFO L225 Difference]: With dead ends: 1951 [2024-11-19 22:02:05,628 INFO L226 Difference]: Without dead ends: 1269 [2024-11-19 22:02:05,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:02:05,630 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 1369 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 2022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:05,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 870 Invalid, 2022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 22:02:05,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-11-19 22:02:05,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1075. [2024-11-19 22:02:05,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 849 states have (on average 1.5889281507656066) internal successors, (1349), 856 states have internal predecessors, (1349), 198 states have call successors, (198), 23 states have call predecessors, (198), 27 states have return successors, (229), 197 states have call predecessors, (229), 197 states have call successors, (229) [2024-11-19 22:02:05,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 1776 transitions. [2024-11-19 22:02:05,678 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 1776 transitions. Word has length 121 [2024-11-19 22:02:05,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:05,678 INFO L471 AbstractCegarLoop]: Abstraction has 1075 states and 1776 transitions. [2024-11-19 22:02:05,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:05,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 1776 transitions. [2024-11-19 22:02:05,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-19 22:02:05,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:05,683 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:05,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 22:02:05,683 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:05,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:05,683 INFO L85 PathProgramCache]: Analyzing trace with hash -337144750, now seen corresponding path program 1 times [2024-11-19 22:02:05,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:05,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803139130] [2024-11-19 22:02:05,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:05,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-19 22:02:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-19 22:02:05,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 22:02:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-19 22:02:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-19 22:02:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-19 22:02:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-19 22:02:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:05,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:05,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803139130] [2024-11-19 22:02:05,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803139130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:05,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:05,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:02:05,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123879694] [2024-11-19 22:02:05,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:05,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:02:05,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:05,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:02:05,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:02:05,812 INFO L87 Difference]: Start difference. First operand 1075 states and 1776 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:07,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:07,208 INFO L93 Difference]: Finished difference Result 2731 states and 4556 transitions. [2024-11-19 22:02:07,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:02:07,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-11-19 22:02:07,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:07,219 INFO L225 Difference]: With dead ends: 2731 [2024-11-19 22:02:07,219 INFO L226 Difference]: Without dead ends: 1777 [2024-11-19 22:02:07,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:02:07,223 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 1395 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 1497 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 856 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 1497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:07,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1410 Valid, 856 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 1497 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 22:02:07,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2024-11-19 22:02:07,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1583. [2024-11-19 22:02:07,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1262 states have (on average 1.6006339144215531) internal successors, (2020), 1269 states have internal predecessors, (2020), 293 states have call successors, (293), 23 states have call predecessors, (293), 27 states have return successors, (324), 292 states have call predecessors, (324), 292 states have call successors, (324) [2024-11-19 22:02:07,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2637 transitions. [2024-11-19 22:02:07,279 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2637 transitions. Word has length 122 [2024-11-19 22:02:07,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:07,280 INFO L471 AbstractCegarLoop]: Abstraction has 1583 states and 2637 transitions. [2024-11-19 22:02:07,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:07,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2637 transitions. [2024-11-19 22:02:07,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-19 22:02:07,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:07,285 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:07,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 22:02:07,286 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:07,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:07,286 INFO L85 PathProgramCache]: Analyzing trace with hash 740211048, now seen corresponding path program 1 times [2024-11-19 22:02:07,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:07,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937079404] [2024-11-19 22:02:07,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:07,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-19 22:02:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 22:02:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-19 22:02:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-19 22:02:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-19 22:02:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-19 22:02:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-19 22:02:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:07,375 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:07,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:07,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937079404] [2024-11-19 22:02:07,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937079404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:07,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:07,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:02:07,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230409131] [2024-11-19 22:02:07,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:07,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:02:07,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:07,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:02:07,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:02:07,377 INFO L87 Difference]: Start difference. First operand 1583 states and 2637 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:08,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:08,770 INFO L93 Difference]: Finished difference Result 3883 states and 6565 transitions. [2024-11-19 22:02:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:02:08,770 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-11-19 22:02:08,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:08,781 INFO L225 Difference]: With dead ends: 3883 [2024-11-19 22:02:08,781 INFO L226 Difference]: Without dead ends: 2546 [2024-11-19 22:02:08,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:02:08,785 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 1387 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1402 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:08,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1402 Valid, 814 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 22:02:08,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2024-11-19 22:02:08,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 2352. [2024-11-19 22:02:08,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 1908 states have (on average 1.609538784067086) internal successors, (3071), 1915 states have internal predecessors, (3071), 416 states have call successors, (416), 23 states have call predecessors, (416), 27 states have return successors, (463), 415 states have call predecessors, (463), 415 states have call successors, (463) [2024-11-19 22:02:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3950 transitions. [2024-11-19 22:02:08,859 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3950 transitions. Word has length 123 [2024-11-19 22:02:08,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:08,860 INFO L471 AbstractCegarLoop]: Abstraction has 2352 states and 3950 transitions. [2024-11-19 22:02:08,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:08,860 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3950 transitions. [2024-11-19 22:02:08,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 22:02:08,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:08,868 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:08,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 22:02:08,868 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:08,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:08,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1646975283, now seen corresponding path program 1 times [2024-11-19 22:02:08,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:08,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443376661] [2024-11-19 22:02:08,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:08,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:08,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:08,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-19 22:02:08,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 22:02:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-19 22:02:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-19 22:02:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-19 22:02:08,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-19 22:02:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 22:02:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:08,962 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:08,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:08,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443376661] [2024-11-19 22:02:08,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443376661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:08,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:08,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:02:08,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010583953] [2024-11-19 22:02:08,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:08,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:02:08,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:08,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:02:08,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:02:08,965 INFO L87 Difference]: Start difference. First operand 2352 states and 3950 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:10,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:10,453 INFO L93 Difference]: Finished difference Result 5677 states and 9699 transitions. [2024-11-19 22:02:10,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:02:10,454 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-11-19 22:02:10,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:10,475 INFO L225 Difference]: With dead ends: 5677 [2024-11-19 22:02:10,476 INFO L226 Difference]: Without dead ends: 3775 [2024-11-19 22:02:10,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:02:10,484 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 1326 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1568 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 1568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:10,484 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1341 Valid, 814 Invalid, 2056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 1568 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 22:02:10,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3775 states. [2024-11-19 22:02:10,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3775 to 3581. [2024-11-19 22:02:10,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3581 states, 2958 states have (on average 1.6152805949966194) internal successors, (4778), 2965 states have internal predecessors, (4778), 595 states have call successors, (595), 23 states have call predecessors, (595), 27 states have return successors, (668), 594 states have call predecessors, (668), 594 states have call successors, (668) [2024-11-19 22:02:10,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3581 states to 3581 states and 6041 transitions. [2024-11-19 22:02:10,632 INFO L78 Accepts]: Start accepts. Automaton has 3581 states and 6041 transitions. Word has length 124 [2024-11-19 22:02:10,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:10,633 INFO L471 AbstractCegarLoop]: Abstraction has 3581 states and 6041 transitions. [2024-11-19 22:02:10,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:10,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3581 states and 6041 transitions. [2024-11-19 22:02:10,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-19 22:02:10,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:10,645 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:10,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 22:02:10,645 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:10,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:10,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1632985316, now seen corresponding path program 1 times [2024-11-19 22:02:10,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:10,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868347352] [2024-11-19 22:02:10,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:10,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-19 22:02:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 22:02:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-19 22:02:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-19 22:02:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-19 22:02:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-19 22:02:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-19 22:02:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:10,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:10,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868347352] [2024-11-19 22:02:10,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868347352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:10,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:10,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:02:10,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174420235] [2024-11-19 22:02:10,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:10,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:02:10,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:10,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:02:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:02:10,776 INFO L87 Difference]: Start difference. First operand 3581 states and 6041 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:12,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:12,228 INFO L93 Difference]: Finished difference Result 8625 states and 14846 transitions. [2024-11-19 22:02:12,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:02:12,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-11-19 22:02:12,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:12,250 INFO L225 Difference]: With dead ends: 8625 [2024-11-19 22:02:12,250 INFO L226 Difference]: Without dead ends: 5806 [2024-11-19 22:02:12,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:02:12,258 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 1355 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 2010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:12,258 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 847 Invalid, 2010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 22:02:12,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5806 states. [2024-11-19 22:02:12,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5806 to 5612. [2024-11-19 22:02:12,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5612 states, 4613 states have (on average 1.6106655105137655) internal successors, (7430), 4620 states have internal predecessors, (7430), 971 states have call successors, (971), 23 states have call predecessors, (971), 27 states have return successors, (1088), 970 states have call predecessors, (1088), 970 states have call successors, (1088) [2024-11-19 22:02:12,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5612 states to 5612 states and 9489 transitions. [2024-11-19 22:02:12,468 INFO L78 Accepts]: Start accepts. Automaton has 5612 states and 9489 transitions. Word has length 125 [2024-11-19 22:02:12,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:12,468 INFO L471 AbstractCegarLoop]: Abstraction has 5612 states and 9489 transitions. [2024-11-19 22:02:12,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:12,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5612 states and 9489 transitions. [2024-11-19 22:02:12,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-19 22:02:12,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:12,480 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:12,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 22:02:12,480 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:12,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:12,481 INFO L85 PathProgramCache]: Analyzing trace with hash 569175479, now seen corresponding path program 1 times [2024-11-19 22:02:12,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:12,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483911228] [2024-11-19 22:02:12,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:12,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-19 22:02:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 22:02:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-19 22:02:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-19 22:02:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-19 22:02:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-19 22:02:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-19 22:02:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:12,563 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:12,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:12,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483911228] [2024-11-19 22:02:12,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483911228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:12,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:12,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:02:12,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312733222] [2024-11-19 22:02:12,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:12,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:02:12,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:12,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:02:12,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:02:12,564 INFO L87 Difference]: Start difference. First operand 5612 states and 9489 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:13,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:13,934 INFO L93 Difference]: Finished difference Result 13962 states and 24067 transitions. [2024-11-19 22:02:13,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:02:13,939 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2024-11-19 22:02:13,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:13,968 INFO L225 Difference]: With dead ends: 13962 [2024-11-19 22:02:13,968 INFO L226 Difference]: Without dead ends: 9489 [2024-11-19 22:02:13,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:02:13,978 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1299 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:13,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 849 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 22:02:13,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9489 states. [2024-11-19 22:02:14,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9489 to 9295. [2024-11-19 22:02:14,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9295 states, 7690 states have (on average 1.6093628088426528) internal successors, (12376), 7697 states have internal predecessors, (12376), 1577 states have call successors, (1577), 23 states have call predecessors, (1577), 27 states have return successors, (1772), 1576 states have call predecessors, (1772), 1576 states have call successors, (1772) [2024-11-19 22:02:14,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9295 states to 9295 states and 15725 transitions. [2024-11-19 22:02:14,299 INFO L78 Accepts]: Start accepts. Automaton has 9295 states and 15725 transitions. Word has length 126 [2024-11-19 22:02:14,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:14,299 INFO L471 AbstractCegarLoop]: Abstraction has 9295 states and 15725 transitions. [2024-11-19 22:02:14,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:14,300 INFO L276 IsEmpty]: Start isEmpty. Operand 9295 states and 15725 transitions. [2024-11-19 22:02:14,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 22:02:14,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:14,320 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:14,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 22:02:14,320 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:14,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:14,320 INFO L85 PathProgramCache]: Analyzing trace with hash 856995474, now seen corresponding path program 1 times [2024-11-19 22:02:14,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:14,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610755883] [2024-11-19 22:02:14,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:14,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:14,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-19 22:02:14,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-19 22:02:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-19 22:02:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-19 22:02:14,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-19 22:02:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-19 22:02:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-19 22:02:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:14,406 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:14,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:14,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610755883] [2024-11-19 22:02:14,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610755883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:14,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:14,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:02:14,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448369291] [2024-11-19 22:02:14,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:14,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:02:14,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:14,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:02:14,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:02:14,408 INFO L87 Difference]: Start difference. First operand 9295 states and 15725 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:15,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:15,907 INFO L93 Difference]: Finished difference Result 24146 states and 41613 transitions. [2024-11-19 22:02:15,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:02:15,908 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-11-19 22:02:15,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:15,953 INFO L225 Difference]: With dead ends: 24146 [2024-11-19 22:02:15,953 INFO L226 Difference]: Without dead ends: 16442 [2024-11-19 22:02:15,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:02:15,975 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1331 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 2065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:15,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 877 Invalid, 2065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 1596 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 22:02:15,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16442 states. [2024-11-19 22:02:16,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16442 to 16248. [2024-11-19 22:02:16,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16248 states, 13440 states have (on average 1.6010416666666667) internal successors, (21518), 13447 states have internal predecessors, (21518), 2780 states have call successors, (2780), 23 states have call predecessors, (2780), 27 states have return successors, (3119), 2779 states have call predecessors, (3119), 2779 states have call successors, (3119) [2024-11-19 22:02:16,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16248 states to 16248 states and 27417 transitions. [2024-11-19 22:02:16,446 INFO L78 Accepts]: Start accepts. Automaton has 16248 states and 27417 transitions. Word has length 127 [2024-11-19 22:02:16,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:16,446 INFO L471 AbstractCegarLoop]: Abstraction has 16248 states and 27417 transitions. [2024-11-19 22:02:16,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 16248 states and 27417 transitions. [2024-11-19 22:02:16,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-19 22:02:16,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:16,470 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:16,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 22:02:16,470 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:16,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:16,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1671109704, now seen corresponding path program 1 times [2024-11-19 22:02:16,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:16,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135043901] [2024-11-19 22:02:16,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:16,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:16,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-19 22:02:16,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-19 22:02:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-19 22:02:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-19 22:02:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-19 22:02:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-19 22:02:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-19 22:02:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:16,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:16,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135043901] [2024-11-19 22:02:16,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135043901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:16,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:16,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:02:16,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290215049] [2024-11-19 22:02:16,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:16,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:02:16,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:16,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:02:16,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:02:16,554 INFO L87 Difference]: Start difference. First operand 16248 states and 27417 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:18,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:18,392 INFO L93 Difference]: Finished difference Result 43112 states and 74212 transitions. [2024-11-19 22:02:18,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:02:18,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2024-11-19 22:02:18,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:18,505 INFO L225 Difference]: With dead ends: 43112 [2024-11-19 22:02:18,506 INFO L226 Difference]: Without dead ends: 29097 [2024-11-19 22:02:18,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:02:18,547 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 1401 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:18,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 815 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 22:02:18,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29097 states. [2024-11-19 22:02:19,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29097 to 28903. [2024-11-19 22:02:19,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28903 states, 24056 states have (on average 1.5971898902560693) internal successors, (38422), 24063 states have internal predecessors, (38422), 4819 states have call successors, (4819), 23 states have call predecessors, (4819), 27 states have return successors, (5432), 4818 states have call predecessors, (5432), 4818 states have call successors, (5432) [2024-11-19 22:02:19,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28903 states to 28903 states and 48673 transitions. [2024-11-19 22:02:19,487 INFO L78 Accepts]: Start accepts. Automaton has 28903 states and 48673 transitions. Word has length 128 [2024-11-19 22:02:19,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:19,488 INFO L471 AbstractCegarLoop]: Abstraction has 28903 states and 48673 transitions. [2024-11-19 22:02:19,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:19,488 INFO L276 IsEmpty]: Start isEmpty. Operand 28903 states and 48673 transitions. [2024-11-19 22:02:19,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-19 22:02:19,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:19,510 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:19,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 22:02:19,511 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:19,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:19,511 INFO L85 PathProgramCache]: Analyzing trace with hash 104454580, now seen corresponding path program 1 times [2024-11-19 22:02:19,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:19,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070550022] [2024-11-19 22:02:19,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:19,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:19,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:19,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-19 22:02:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-19 22:02:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-19 22:02:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-19 22:02:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-19 22:02:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-19 22:02:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-19 22:02:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:19,602 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:19,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:19,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070550022] [2024-11-19 22:02:19,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070550022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:19,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:19,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:02:19,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528071684] [2024-11-19 22:02:19,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:19,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:02:19,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:19,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:02:19,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:02:19,604 INFO L87 Difference]: Start difference. First operand 28903 states and 48673 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:22,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:22,021 INFO L93 Difference]: Finished difference Result 78874 states and 134971 transitions. [2024-11-19 22:02:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:02:22,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2024-11-19 22:02:22,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:22,218 INFO L225 Difference]: With dead ends: 78874 [2024-11-19 22:02:22,218 INFO L226 Difference]: Without dead ends: 52976 [2024-11-19 22:02:22,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:02:22,292 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 1422 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:22,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1437 Valid, 819 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 22:02:22,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52976 states. [2024-11-19 22:02:24,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52976 to 52782. [2024-11-19 22:02:24,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52782 states, 44220 states have (on average 1.5918362731795568) internal successors, (70391), 44227 states have internal predecessors, (70391), 8534 states have call successors, (8534), 23 states have call predecessors, (8534), 27 states have return successors, (9679), 8533 states have call predecessors, (9679), 8533 states have call successors, (9679) [2024-11-19 22:02:24,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52782 states to 52782 states and 88604 transitions. [2024-11-19 22:02:24,284 INFO L78 Accepts]: Start accepts. Automaton has 52782 states and 88604 transitions. Word has length 129 [2024-11-19 22:02:24,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:24,285 INFO L471 AbstractCegarLoop]: Abstraction has 52782 states and 88604 transitions. [2024-11-19 22:02:24,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:24,285 INFO L276 IsEmpty]: Start isEmpty. Operand 52782 states and 88604 transitions. [2024-11-19 22:02:24,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-19 22:02:24,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:24,315 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:24,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 22:02:24,315 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:24,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:24,315 INFO L85 PathProgramCache]: Analyzing trace with hash 395645336, now seen corresponding path program 1 times [2024-11-19 22:02:24,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:24,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087513457] [2024-11-19 22:02:24,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:24,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:24,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:24,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:24,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-19 22:02:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-19 22:02:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-19 22:02:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-19 22:02:24,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-19 22:02:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-19 22:02:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-19 22:02:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:24,451 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:24,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:24,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087513457] [2024-11-19 22:02:24,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087513457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:24,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:24,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 22:02:24,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741088478] [2024-11-19 22:02:24,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:24,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 22:02:24,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:24,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 22:02:24,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 22:02:24,454 INFO L87 Difference]: Start difference. First operand 52782 states and 88604 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:27,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:27,600 INFO L93 Difference]: Finished difference Result 98645 states and 169158 transitions. [2024-11-19 22:02:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 22:02:27,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2024-11-19 22:02:27,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:28,013 INFO L225 Difference]: With dead ends: 98645 [2024-11-19 22:02:28,013 INFO L226 Difference]: Without dead ends: 98435 [2024-11-19 22:02:28,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:02:28,043 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1277 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:28,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 821 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 22:02:28,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98435 states. [2024-11-19 22:02:30,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98435 to 98241. [2024-11-19 22:02:30,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98241 states, 82880 states have (on average 1.5849541505791507) internal successors, (131361), 82887 states have internal predecessors, (131361), 15333 states have call successors, (15333), 23 states have call predecessors, (15333), 27 states have return successors, (17524), 15332 states have call predecessors, (17524), 15332 states have call successors, (17524) [2024-11-19 22:02:31,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98241 states to 98241 states and 164218 transitions. [2024-11-19 22:02:31,504 INFO L78 Accepts]: Start accepts. Automaton has 98241 states and 164218 transitions. Word has length 130 [2024-11-19 22:02:31,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:31,504 INFO L471 AbstractCegarLoop]: Abstraction has 98241 states and 164218 transitions. [2024-11-19 22:02:31,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 22:02:31,505 INFO L276 IsEmpty]: Start isEmpty. Operand 98241 states and 164218 transitions. [2024-11-19 22:02:31,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-19 22:02:31,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:31,539 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:31,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 22:02:31,540 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:31,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:31,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1107027763, now seen corresponding path program 1 times [2024-11-19 22:02:31,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:31,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372136332] [2024-11-19 22:02:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:31,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 22:02:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 22:02:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-19 22:02:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-19 22:02:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 22:02:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-19 22:02:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 22:02:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:31,903 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:31,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:31,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372136332] [2024-11-19 22:02:31,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372136332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:31,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:31,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-19 22:02:31,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193485445] [2024-11-19 22:02:31,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:31,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 22:02:31,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:31,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 22:02:31,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2024-11-19 22:02:31,905 INFO L87 Difference]: Start difference. First operand 98241 states and 164218 transitions. Second operand has 18 states, 16 states have (on average 5.625) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-19 22:02:41,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:41,863 INFO L93 Difference]: Finished difference Result 196793 states and 340735 transitions. [2024-11-19 22:02:41,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-19 22:02:41,864 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.625) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 131 [2024-11-19 22:02:41,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:42,686 INFO L225 Difference]: With dead ends: 196793 [2024-11-19 22:02:42,686 INFO L226 Difference]: Without dead ends: 196589 [2024-11-19 22:02:42,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1385 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=900, Invalid=4070, Unknown=0, NotChecked=0, Total=4970 [2024-11-19 22:02:42,764 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 5267 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 9351 mSolverCounterSat, 1897 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5267 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 11248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1897 IncrementalHoareTripleChecker+Valid, 9351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:42,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5267 Valid, 2996 Invalid, 11248 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1897 Valid, 9351 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-19 22:02:42,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196589 states. [2024-11-19 22:02:48,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196589 to 195733. [2024-11-19 22:02:48,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195733 states, 165185 states have (on average 1.585652450283016) internal successors, (261926), 165090 states have internal predecessors, (261926), 30476 states have call successors, (30476), 62 states have call predecessors, (30476), 71 states have return successors, (38135), 30586 states have call predecessors, (38135), 30473 states have call successors, (38135) [2024-11-19 22:02:49,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195733 states to 195733 states and 330537 transitions. [2024-11-19 22:02:50,031 INFO L78 Accepts]: Start accepts. Automaton has 195733 states and 330537 transitions. Word has length 131 [2024-11-19 22:02:50,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:02:50,032 INFO L471 AbstractCegarLoop]: Abstraction has 195733 states and 330537 transitions. [2024-11-19 22:02:50,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 5.625) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-19 22:02:50,032 INFO L276 IsEmpty]: Start isEmpty. Operand 195733 states and 330537 transitions. [2024-11-19 22:02:50,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-19 22:02:50,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:02:50,080 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:02:50,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 22:02:50,081 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:02:50,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:02:50,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1288288394, now seen corresponding path program 1 times [2024-11-19 22:02:50,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:02:50,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821466400] [2024-11-19 22:02:50,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:02:50,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:02:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-19 22:02:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 22:02:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-19 22:02:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 22:02:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 22:02:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-19 22:02:50,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-19 22:02:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-19 22:02:50,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-19 22:02:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-19 22:02:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-19 22:02:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-19 22:02:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-19 22:02:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:02:50,280 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-19 22:02:50,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:02:50,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821466400] [2024-11-19 22:02:50,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821466400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:02:50,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:02:50,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 22:02:50,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705554530] [2024-11-19 22:02:50,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:02:50,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 22:02:50,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:02:50,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 22:02:50,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-19 22:02:50,281 INFO L87 Difference]: Start difference. First operand 195733 states and 330537 transitions. Second operand has 14 states, 14 states have (on average 6.5) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-19 22:02:57,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:02:57,869 INFO L93 Difference]: Finished difference Result 197704 states and 339896 transitions. [2024-11-19 22:02:57,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-19 22:02:57,870 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.5) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 132 [2024-11-19 22:02:57,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:02:58,615 INFO L225 Difference]: With dead ends: 197704 [2024-11-19 22:02:58,615 INFO L226 Difference]: Without dead ends: 196349 [2024-11-19 22:02:58,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 22:02:58,684 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 2593 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 4679 mSolverCounterSat, 929 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2608 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 5608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 929 IncrementalHoareTripleChecker+Valid, 4679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:02:58,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2608 Valid, 1640 Invalid, 5608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [929 Valid, 4679 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-19 22:02:58,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196349 states.