./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec1_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 ca4739abfecd00b8d2b799ccc2617c6e4b4e221f88b8a7e722070835771a8404 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:00:43,128 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:00:43,197 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:00:43,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:00:43,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:00:43,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:00:43,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:00:43,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:00:43,232 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:00:43,234 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:00:43,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:00:43,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:00:43,235 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:00:43,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:00:43,237 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:00:43,238 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:00:43,238 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:00:43,238 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:00:43,239 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:00:43,239 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:00:43,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:00:43,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:00:43,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:00:43,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:00:43,243 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:00:43,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:00:43,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:00:43,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:00:43,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:00:43,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:00:43,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:00:43,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:00:43,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:00:43,245 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:00:43,245 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:00:43,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:00:43,246 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:00:43,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:00:43,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:00:43,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:00:43,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:00:43,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:00:43,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca4739abfecd00b8d2b799ccc2617c6e4b4e221f88b8a7e722070835771a8404 [2024-11-08 15:00:43,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:00:43,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:00:43,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:00:43,512 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:00:43,515 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:00:43,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec1_product31.cil.c [2024-11-08 15:00:44,965 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:00:45,256 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:00:45,257 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec1_product31.cil.c [2024-11-08 15:00:45,282 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b80af669c/2becb4c655e04d7c98b5d9b3aa7d852e/FLAG7bfe2b6b2 [2024-11-08 15:00:45,295 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b80af669c/2becb4c655e04d7c98b5d9b3aa7d852e [2024-11-08 15:00:45,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:00:45,299 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:00:45,299 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:00:45,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:00:45,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:00:45,304 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:00:45" (1/1) ... [2024-11-08 15:00:45,305 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b61dbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:45, skipping insertion in model container [2024-11-08 15:00:45,305 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:00:45" (1/1) ... [2024-11-08 15:00:45,369 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:00:45,920 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_spec1_product31.cil.c[64142,64155] [2024-11-08 15:00:45,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:00:45,946 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:00:45,957 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-08 15:00:45,958 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [66] [2024-11-08 15:00:45,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [108] [2024-11-08 15:00:45,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [489] [2024-11-08 15:00:45,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [855] [2024-11-08 15:00:45,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [992] [2024-11-08 15:00:45,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1217] [2024-11-08 15:00:45,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1255] [2024-11-08 15:00:45,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1537] [2024-11-08 15:00:45,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1934] [2024-11-08 15:00:45,961 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3001] [2024-11-08 15:00:46,086 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_spec1_product31.cil.c[64142,64155] [2024-11-08 15:00:46,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:00:46,127 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:00:46,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46 WrapperNode [2024-11-08 15:00:46,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:00:46,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:00:46,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:00:46,129 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:00:46,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (1/1) ... [2024-11-08 15:00:46,170 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (1/1) ... [2024-11-08 15:00:46,219 INFO L138 Inliner]: procedures = 131, calls = 204, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1029 [2024-11-08 15:00:46,220 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:00:46,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:00:46,220 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:00:46,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:00:46,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (1/1) ... [2024-11-08 15:00:46,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (1/1) ... [2024-11-08 15:00:46,251 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (1/1) ... [2024-11-08 15:00:46,282 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]. [2024-11-08 15:00:46,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (1/1) ... [2024-11-08 15:00:46,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (1/1) ... [2024-11-08 15:00:46,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (1/1) ... [2024-11-08 15:00:46,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (1/1) ... [2024-11-08 15:00:46,325 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (1/1) ... [2024-11-08 15:00:46,330 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (1/1) ... [2024-11-08 15:00:46,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:00:46,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:00:46,348 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:00:46,348 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:00:46,349 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (1/1) ... [2024-11-08 15:00:46,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:00:46,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:00:46,401 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) [2024-11-08 15:00:46,408 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 [2024-11-08 15:00:46,454 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-08 15:00:46,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-08 15:00:46,454 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-08 15:00:46,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-08 15:00:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-08 15:00:46,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-08 15:00:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-08 15:00:46,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-08 15:00:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-08 15:00:46,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-08 15:00:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-08 15:00:46,456 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-08 15:00:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-08 15:00:46,457 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-08 15:00:46,458 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-08 15:00:46,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-08 15:00:46,458 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-08 15:00:46,458 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-08 15:00:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-08 15:00:46,460 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-08 15:00:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-08 15:00:46,460 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-08 15:00:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-08 15:00:46,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-08 15:00:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:00:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-08 15:00:46,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-08 15:00:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-08 15:00:46,460 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-08 15:00:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-08 15:00:46,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-08 15:00:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-08 15:00:46,460 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-08 15:00:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-08 15:00:46,461 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-08 15:00:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-08 15:00:46,461 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-08 15:00:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-08 15:00:46,461 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-08 15:00:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-08 15:00:46,461 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-08 15:00:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-08 15:00:46,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-08 15:00:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-08 15:00:46,461 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-08 15:00:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:00:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 15:00:46,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 15:00:46,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 15:00:46,462 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-08 15:00:46,462 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-08 15:00:46,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:00:46,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:00:46,682 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:00:46,686 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:00:47,662 INFO L? ?]: Removed 476 outVars from TransFormulas that were not future-live. [2024-11-08 15:00:47,662 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:00:47,688 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:00:47,688 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 15:00:47,689 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:00:47 BoogieIcfgContainer [2024-11-08 15:00:47,689 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:00:47,691 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:00:47,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:00:47,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:00:47,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:00:45" (1/3) ... [2024-11-08 15:00:47,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22de00f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:00:47, skipping insertion in model container [2024-11-08 15:00:47,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:00:46" (2/3) ... [2024-11-08 15:00:47,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22de00f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:00:47, skipping insertion in model container [2024-11-08 15:00:47,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:00:47" (3/3) ... [2024-11-08 15:00:47,698 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product31.cil.c [2024-11-08 15:00:47,713 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:00:47,713 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:00:47,797 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:00:47,804 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;@71d4e098, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:00:47,805 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:00:47,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 369 states, 285 states have (on average 1.5017543859649123) internal successors, (428), 289 states have internal predecessors, (428), 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) [2024-11-08 15:00:47,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 15:00:47,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:00:47,838 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] [2024-11-08 15:00:47,839 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:00:47,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:00:47,843 INFO L85 PathProgramCache]: Analyzing trace with hash -87878287, now seen corresponding path program 1 times [2024-11-08 15:00:47,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:00:47,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771268967] [2024-11-08 15:00:47,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:47,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:00:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:00:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:00:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:00:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:00:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:00:48,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:00:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-08 15:00:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:00:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:00:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:00:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:00:48,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:00:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:00:48,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:48,669 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 15:00:48,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:00:48,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771268967] [2024-11-08 15:00:48,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771268967] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:00:48,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594403237] [2024-11-08 15:00:48,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:48,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:00:48,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:00:48,675 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) [2024-11-08 15:00:48,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:00:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 15:00:49,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:00:49,060 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:00:49,061 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:00:49,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594403237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:00:49,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:00:49,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-08 15:00:49,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819621690] [2024-11-08 15:00:49,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:00:49,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:00:49,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:00:49,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:00:49,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:00:49,096 INFO L87 Difference]: Start difference. First operand has 369 states, 285 states have (on average 1.5017543859649123) internal successors, (428), 289 states have internal predecessors, (428), 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) [2024-11-08 15:00:49,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:00:49,159 INFO L93 Difference]: Finished difference Result 584 states and 846 transitions. [2024-11-08 15:00:49,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:00:49,161 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 [2024-11-08 15:00:49,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:00:49,174 INFO L225 Difference]: With dead ends: 584 [2024-11-08 15:00:49,174 INFO L226 Difference]: Without dead ends: 362 [2024-11-08 15:00:49,179 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 [2024-11-08 15:00:49,182 INFO L432 NwaCegarLoop]: 542 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, 542 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 [2024-11-08 15:00:49,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:00:49,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-08 15:00:49,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2024-11-08 15:00:49,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 279 states have (on average 1.4946236559139785) internal successors, (417), 282 states have internal predecessors, (417), 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) [2024-11-08 15:00:49,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 534 transitions. [2024-11-08 15:00:49,275 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 534 transitions. Word has length 101 [2024-11-08 15:00:49,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:00:49,277 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 534 transitions. [2024-11-08 15:00:49,277 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) [2024-11-08 15:00:49,277 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 534 transitions. [2024-11-08 15:00:49,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 15:00:49,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:00:49,289 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] [2024-11-08 15:00:49,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 15:00:49,490 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 [2024-11-08 15:00:49,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:00:49,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:00:49,491 INFO L85 PathProgramCache]: Analyzing trace with hash -947747183, now seen corresponding path program 1 times [2024-11-08 15:00:49,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:00:49,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884519306] [2024-11-08 15:00:49,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:49,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:00:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:00:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:00:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:00:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:00:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:00:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:00:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 15:00:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 15:00:49,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:00:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 15:00:49,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:00:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:00:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:00:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:49,890 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-08 15:00:49,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:00:49,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884519306] [2024-11-08 15:00:49,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884519306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:00:49,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396295366] [2024-11-08 15:00:49,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:49,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:00:49,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:00:49,896 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) [2024-11-08 15:00:49,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:00:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 15:00:50,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:00:50,283 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:00:50,283 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:00:50,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396295366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:00:50,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:00:50,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 15:00:50,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131804157] [2024-11-08 15:00:50,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:00:50,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:00:50,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:00:50,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:00:50,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:00:50,291 INFO L87 Difference]: Start difference. First operand 362 states and 534 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) [2024-11-08 15:00:50,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:00:50,357 INFO L93 Difference]: Finished difference Result 574 states and 827 transitions. [2024-11-08 15:00:50,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:00:50,358 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 [2024-11-08 15:00:50,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:00:50,364 INFO L225 Difference]: With dead ends: 574 [2024-11-08 15:00:50,366 INFO L226 Difference]: Without dead ends: 365 [2024-11-08 15:00:50,368 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 [2024-11-08 15:00:50,369 INFO L432 NwaCegarLoop]: 532 mSDtfsCounter, 1 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1062 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 [2024-11-08 15:00:50,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1062 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:00:50,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-08 15:00:50,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 364. [2024-11-08 15:00:50,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 281 states have (on average 1.491103202846975) internal successors, (419), 284 states have internal predecessors, (419), 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) [2024-11-08 15:00:50,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 536 transitions. [2024-11-08 15:00:50,416 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 536 transitions. Word has length 102 [2024-11-08 15:00:50,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:00:50,418 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 536 transitions. [2024-11-08 15:00:50,418 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) [2024-11-08 15:00:50,418 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 536 transitions. [2024-11-08 15:00:50,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 15:00:50,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:00:50,420 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] [2024-11-08 15:00:50,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 15:00:50,621 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 [2024-11-08 15:00:50,622 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:00:50,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:00:50,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1216397766, now seen corresponding path program 1 times [2024-11-08 15:00:50,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:00:50,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102477505] [2024-11-08 15:00:50,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:50,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:00:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:00:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:00:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:00:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:00:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:00:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:00:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 15:00:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 15:00:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:00:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:00:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:00:50,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:00:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:00:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:50,907 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 15:00:50,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:00:50,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102477505] [2024-11-08 15:00:50,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102477505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:00:50,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [628889237] [2024-11-08 15:00:50,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:50,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:00:50,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:00:50,910 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) [2024-11-08 15:00:50,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 15:00:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:00:51,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:00:51,235 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:00:51,235 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:00:51,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [628889237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:00:51,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:00:51,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-08 15:00:51,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973699226] [2024-11-08 15:00:51,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:00:51,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:00:51,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:00:51,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:00:51,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:00:51,238 INFO L87 Difference]: Start difference. First operand 364 states and 536 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) [2024-11-08 15:00:51,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:00:51,274 INFO L93 Difference]: Finished difference Result 758 states and 1131 transitions. [2024-11-08 15:00:51,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:00:51,275 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 [2024-11-08 15:00:51,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:00:51,279 INFO L225 Difference]: With dead ends: 758 [2024-11-08 15:00:51,280 INFO L226 Difference]: Without dead ends: 421 [2024-11-08 15:00:51,281 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 [2024-11-08 15:00:51,282 INFO L432 NwaCegarLoop]: 549 mSDtfsCounter, 107 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1037 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 [2024-11-08 15:00:51,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1037 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:00:51,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-08 15:00:51,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 413. [2024-11-08 15:00:51,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 319 states have (on average 1.5078369905956113) internal successors, (481), 322 states have internal predecessors, (481), 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) [2024-11-08 15:00:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 620 transitions. [2024-11-08 15:00:51,314 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 620 transitions. Word has length 108 [2024-11-08 15:00:51,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:00:51,315 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 620 transitions. [2024-11-08 15:00:51,315 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) [2024-11-08 15:00:51,315 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 620 transitions. [2024-11-08 15:00:51,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 15:00:51,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:00:51,318 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] [2024-11-08 15:00:51,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 15:00:51,518 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 [2024-11-08 15:00:51,519 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:00:51,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:00:51,519 INFO L85 PathProgramCache]: Analyzing trace with hash 659404408, now seen corresponding path program 1 times [2024-11-08 15:00:51,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:00:51,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005033321] [2024-11-08 15:00:51,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:51,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:00:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:00:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:00:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:00:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:00:51,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:00:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 15:00:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 15:00:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 15:00:51,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:00:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:00:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:00:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:00:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:00:51,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 15:00:51,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:00:51,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005033321] [2024-11-08 15:00:51,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005033321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:00:51,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884820005] [2024-11-08 15:00:51,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:51,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:00:51,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:00:51,751 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) [2024-11-08 15:00:51,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 15:00:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 15:00:52,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:00:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 15:00:52,135 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:00:52,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884820005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:00:52,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:00:52,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-08 15:00:52,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948189526] [2024-11-08 15:00:52,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:00:52,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:00:52,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:00:52,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:00:52,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:00:52,140 INFO L87 Difference]: Start difference. First operand 413 states and 620 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) [2024-11-08 15:00:52,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:00:52,207 INFO L93 Difference]: Finished difference Result 817 states and 1230 transitions. [2024-11-08 15:00:52,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:00:52,208 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 [2024-11-08 15:00:52,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:00:52,212 INFO L225 Difference]: With dead ends: 817 [2024-11-08 15:00:52,212 INFO L226 Difference]: Without dead ends: 415 [2024-11-08 15:00:52,216 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 [2024-11-08 15:00:52,217 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 2 mSDsluCounter, 1567 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2093 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 [2024-11-08 15:00:52,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2093 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:00:52,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-08 15:00:52,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2024-11-08 15:00:52,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 320 states have (on average 1.50625) internal successors, (482), 324 states have internal predecessors, (482), 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) [2024-11-08 15:00:52,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 623 transitions. [2024-11-08 15:00:52,245 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 623 transitions. Word has length 109 [2024-11-08 15:00:52,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:00:52,248 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 623 transitions. [2024-11-08 15:00:52,249 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) [2024-11-08 15:00:52,249 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 623 transitions. [2024-11-08 15:00:52,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 15:00:52,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:00:52,251 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] [2024-11-08 15:00:52,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 15:00:52,452 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 [2024-11-08 15:00:52,452 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:00:52,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:00:52,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2124888186, now seen corresponding path program 1 times [2024-11-08 15:00:52,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:00:52,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708492925] [2024-11-08 15:00:52,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:52,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:00:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:00:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:00:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:00:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:00:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 15:00:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 15:00:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 15:00:52,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:00:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 15:00:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:00:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:00:52,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:00:52,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:00:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,678 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 15:00:52,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:00:52,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708492925] [2024-11-08 15:00:52,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708492925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:00:52,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573009398] [2024-11-08 15:00:52,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:52,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:00:52,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:00:52,681 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) [2024-11-08 15:00:52,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 15:00:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:52,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 1035 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 15:00:52,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:00:53,020 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 15:00:53,020 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:00:53,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573009398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:00:53,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:00:53,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-08 15:00:53,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921312073] [2024-11-08 15:00:53,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:00:53,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:00:53,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:00:53,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:00:53,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-08 15:00:53,023 INFO L87 Difference]: Start difference. First operand 415 states and 623 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) [2024-11-08 15:00:53,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:00:53,104 INFO L93 Difference]: Finished difference Result 819 states and 1235 transitions. [2024-11-08 15:00:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:00:53,105 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 [2024-11-08 15:00:53,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:00:53,107 INFO L225 Difference]: With dead ends: 819 [2024-11-08 15:00:53,108 INFO L226 Difference]: Without dead ends: 417 [2024-11-08 15:00:53,109 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 [2024-11-08 15:00:53,110 INFO L432 NwaCegarLoop]: 524 mSDtfsCounter, 2 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2079 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 [2024-11-08 15:00:53,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2079 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:00:53,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-08 15:00:53,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2024-11-08 15:00:53,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 321 states have (on average 1.5046728971962617) internal successors, (483), 326 states have internal predecessors, (483), 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) [2024-11-08 15:00:53,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 629 transitions. [2024-11-08 15:00:53,126 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 629 transitions. Word has length 110 [2024-11-08 15:00:53,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:00:53,127 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 629 transitions. [2024-11-08 15:00:53,127 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) [2024-11-08 15:00:53,127 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 629 transitions. [2024-11-08 15:00:53,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 15:00:53,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:00:53,129 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] [2024-11-08 15:00:53,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 15:00:53,329 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 [2024-11-08 15:00:53,330 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:00:53,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:00:53,331 INFO L85 PathProgramCache]: Analyzing trace with hash 302573545, now seen corresponding path program 1 times [2024-11-08 15:00:53,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:00:53,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903295688] [2024-11-08 15:00:53,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:53,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:00:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:00:53,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:00:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:00:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:00:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:00:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 15:00:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 15:00:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 15:00:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:00:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 15:00:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:00:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:00:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:00:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:53,532 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 15:00:53,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:00:53,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903295688] [2024-11-08 15:00:53,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903295688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:00:53,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:00:53,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:00:53,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656367989] [2024-11-08 15:00:53,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:00:53,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:00:53,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:00:53,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:00:53,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:00:53,534 INFO L87 Difference]: Start difference. First operand 417 states and 629 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) [2024-11-08 15:00:55,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:00:55,943 INFO L93 Difference]: Finished difference Result 996 states and 1501 transitions. [2024-11-08 15:00:55,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:00:55,944 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 [2024-11-08 15:00:55,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:00:55,950 INFO L225 Difference]: With dead ends: 996 [2024-11-08 15:00:55,950 INFO L226 Difference]: Without dead ends: 602 [2024-11-08 15:00:55,952 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 [2024-11-08 15:00:55,954 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1184 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2910 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 3293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 2910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:00:55,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 1108 Invalid, 3293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 2910 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 15:00:55,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-11-08 15:00:55,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 417. [2024-11-08 15:00:55,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 321 states have (on average 1.5046728971962617) internal successors, (483), 326 states have internal predecessors, (483), 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) [2024-11-08 15:00:55,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 628 transitions. [2024-11-08 15:00:55,993 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 628 transitions. Word has length 111 [2024-11-08 15:00:55,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:00:55,995 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 628 transitions. [2024-11-08 15:00:55,995 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) [2024-11-08 15:00:55,996 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 628 transitions. [2024-11-08 15:00:55,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 15:00:55,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:00:55,998 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] [2024-11-08 15:00:55,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:00:55,998 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:00:55,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:00:55,999 INFO L85 PathProgramCache]: Analyzing trace with hash -573693163, now seen corresponding path program 2 times [2024-11-08 15:00:55,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:00:55,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474023702] [2024-11-08 15:00:55,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:55,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:00:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:00:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:00:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:00:56,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:00:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:00:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 15:00:56,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 15:00:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 15:00:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:00:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:00:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:00:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:00:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:00:56,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:56,239 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 15:00:56,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:00:56,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474023702] [2024-11-08 15:00:56,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474023702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:00:56,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:00:56,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 15:00:56,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110266960] [2024-11-08 15:00:56,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:00:56,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 15:00:56,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:00:56,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 15:00:56,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:00:56,242 INFO L87 Difference]: Start difference. First operand 417 states and 628 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) [2024-11-08 15:00:58,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:00:58,467 INFO L93 Difference]: Finished difference Result 998 states and 1504 transitions. [2024-11-08 15:00:58,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 15:00:58,467 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 [2024-11-08 15:00:58,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:00:58,473 INFO L225 Difference]: With dead ends: 998 [2024-11-08 15:00:58,473 INFO L226 Difference]: Without dead ends: 604 [2024-11-08 15:00:58,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:00:58,476 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1180 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2922 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 3305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 2922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:00:58,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1108 Invalid, 3305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 2922 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 15:00:58,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-08 15:00:58,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 419. [2024-11-08 15:00:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 322 states have (on average 1.5031055900621118) internal successors, (484), 328 states have internal predecessors, (484), 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) [2024-11-08 15:00:58,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 631 transitions. [2024-11-08 15:00:58,513 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 631 transitions. Word has length 112 [2024-11-08 15:00:58,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:00:58,513 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 631 transitions. [2024-11-08 15:00:58,513 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) [2024-11-08 15:00:58,514 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 631 transitions. [2024-11-08 15:00:58,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 15:00:58,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:00:58,515 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] [2024-11-08 15:00:58,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:00:58,516 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:00:58,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:00:58,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1900493330, now seen corresponding path program 1 times [2024-11-08 15:00:58,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:00:58,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804122953] [2024-11-08 15:00:58,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:00:58,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:00:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:00:58,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:00:58,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:00:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:00:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:00:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:00:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 15:00:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 15:00:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:00:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:00:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:00:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:00:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 15:00:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:00:58,760 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 15:00:58,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:00:58,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804122953] [2024-11-08 15:00:58,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804122953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:00:58,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:00:58,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:00:58,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084423495] [2024-11-08 15:00:58,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:00:58,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:00:58,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:00:58,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:00:58,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:00:58,764 INFO L87 Difference]: Start difference. First operand 419 states and 631 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) [2024-11-08 15:01:01,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:01,645 INFO L93 Difference]: Finished difference Result 996 states and 1499 transitions. [2024-11-08 15:01:01,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:01:01,646 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 [2024-11-08 15:01:01,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:01,651 INFO L225 Difference]: With dead ends: 996 [2024-11-08 15:01:01,651 INFO L226 Difference]: Without dead ends: 604 [2024-11-08 15:01:01,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 15:01:01,654 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1184 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4835 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 5225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 4835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:01,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 1535 Invalid, 5225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 4835 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 15:01:01,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-08 15:01:01,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 419. [2024-11-08 15:01:01,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 322 states have (on average 1.5031055900621118) internal successors, (484), 328 states have internal predecessors, (484), 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) [2024-11-08 15:01:01,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 630 transitions. [2024-11-08 15:01:01,690 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 630 transitions. Word has length 113 [2024-11-08 15:01:01,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:01,691 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 630 transitions. [2024-11-08 15:01:01,691 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) [2024-11-08 15:01:01,691 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 630 transitions. [2024-11-08 15:01:01,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 15:01:01,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:01,693 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] [2024-11-08 15:01:01,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:01:01,693 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:01,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:01,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1140315037, now seen corresponding path program 2 times [2024-11-08 15:01:01,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:01,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286559912] [2024-11-08 15:01:01,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:01,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 15:01:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 15:01:01,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:01:01,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:01:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:01:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:01:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:01:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:01,950 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 15:01:01,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:01,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286559912] [2024-11-08 15:01:01,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286559912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:01:01,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:01:01,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:01:01,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103142056] [2024-11-08 15:01:01,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:01:01,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:01:01,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:01,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:01:01,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:01:01,953 INFO L87 Difference]: Start difference. First operand 419 states and 630 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) [2024-11-08 15:01:04,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:04,612 INFO L93 Difference]: Finished difference Result 998 states and 1505 transitions. [2024-11-08 15:01:04,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 15:01:04,613 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 [2024-11-08 15:01:04,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:04,617 INFO L225 Difference]: With dead ends: 998 [2024-11-08 15:01:04,617 INFO L226 Difference]: Without dead ends: 606 [2024-11-08 15:01:04,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-08 15:01:04,620 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1180 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4887 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 5272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 4887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:04,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1536 Invalid, 5272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 4887 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 15:01:04,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-08 15:01:04,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 421. [2024-11-08 15:01:04,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 323 states have (on average 1.501547987616099) internal successors, (485), 330 states have internal predecessors, (485), 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) [2024-11-08 15:01:04,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 636 transitions. [2024-11-08 15:01:04,664 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 636 transitions. Word has length 114 [2024-11-08 15:01:04,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:04,665 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 636 transitions. [2024-11-08 15:01:04,665 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) [2024-11-08 15:01:04,665 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 636 transitions. [2024-11-08 15:01:04,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 15:01:04,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:04,667 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] [2024-11-08 15:01:04,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:01:04,668 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:04,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:04,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1502282733, now seen corresponding path program 1 times [2024-11-08 15:01:04,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:04,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905573644] [2024-11-08 15:01:04,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:04,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:04,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:04,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 15:01:04,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 15:01:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:01:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:01:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:01:04,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:01:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:01:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:04,844 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:04,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:04,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905573644] [2024-11-08 15:01:04,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905573644] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:01:04,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712228339] [2024-11-08 15:01:04,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:04,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:01:04,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:01:04,847 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) [2024-11-08 15:01:04,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 15:01:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:05,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 15:01:05,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:01:05,150 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:05,152 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:01:05,244 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:05,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712228339] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:01:05,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:01:05,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-11-08 15:01:05,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635997639] [2024-11-08 15:01:05,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:01:05,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 15:01:05,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:05,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 15:01:05,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-08 15:01:05,247 INFO L87 Difference]: Start difference. First operand 421 states and 636 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) [2024-11-08 15:01:06,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:06,881 INFO L93 Difference]: Finished difference Result 1167 states and 1833 transitions. [2024-11-08 15:01:06,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 15:01:06,881 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 [2024-11-08 15:01:06,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:06,888 INFO L225 Difference]: With dead ends: 1167 [2024-11-08 15:01:06,888 INFO L226 Difference]: Without dead ends: 958 [2024-11-08 15:01:06,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-08 15:01:06,891 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 1650 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 532 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 532 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:06,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 1419 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [532 Valid, 1884 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 15:01:06,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2024-11-08 15:01:06,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 749. [2024-11-08 15:01:06,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 587 states have (on average 1.5724020442930153) internal successors, (923), 594 states have internal predecessors, (923), 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) [2024-11-08 15:01:06,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1212 transitions. [2024-11-08 15:01:06,940 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1212 transitions. Word has length 115 [2024-11-08 15:01:06,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:06,941 INFO L471 AbstractCegarLoop]: Abstraction has 749 states and 1212 transitions. [2024-11-08 15:01:06,941 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) [2024-11-08 15:01:06,941 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1212 transitions. [2024-11-08 15:01:06,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 15:01:06,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:06,945 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] [2024-11-08 15:01:06,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 15:01:07,145 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 [2024-11-08 15:01:07,146 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:07,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:07,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1211504496, now seen corresponding path program 1 times [2024-11-08 15:01:07,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:07,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036975705] [2024-11-08 15:01:07,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:07,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 15:01:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:01:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:01:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:01:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:01:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-08 15:01:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 15:01:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:07,257 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:07,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:07,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036975705] [2024-11-08 15:01:07,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036975705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:01:07,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:01:07,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:01:07,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80105554] [2024-11-08 15:01:07,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:01:07,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:01:07,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:07,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:01:07,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:01:07,260 INFO L87 Difference]: Start difference. First operand 749 states and 1212 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) [2024-11-08 15:01:08,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:08,770 INFO L93 Difference]: Finished difference Result 1948 states and 3204 transitions. [2024-11-08 15:01:08,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:01:08,770 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 [2024-11-08 15:01:08,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:08,777 INFO L225 Difference]: With dead ends: 1948 [2024-11-08 15:01:08,778 INFO L226 Difference]: Without dead ends: 1267 [2024-11-08 15:01:08,781 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 [2024-11-08 15:01:08,782 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 1284 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:08,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 851 Invalid, 2109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 15:01:08,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-11-08 15:01:08,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1074. [2024-11-08 15:01:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 848 states have (on average 1.5896226415094339) internal successors, (1348), 855 states have internal predecessors, (1348), 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) [2024-11-08 15:01:08,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1775 transitions. [2024-11-08 15:01:08,876 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1775 transitions. Word has length 121 [2024-11-08 15:01:08,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:08,877 INFO L471 AbstractCegarLoop]: Abstraction has 1074 states and 1775 transitions. [2024-11-08 15:01:08,877 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) [2024-11-08 15:01:08,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1775 transitions. [2024-11-08 15:01:08,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 15:01:08,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:08,882 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] [2024-11-08 15:01:08,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 15:01:08,883 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:08,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:08,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1600568447, now seen corresponding path program 1 times [2024-11-08 15:01:08,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:08,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255106725] [2024-11-08 15:01:08,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:08,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:08,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 15:01:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:01:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:01:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:01:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:01:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-08 15:01:08,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:01:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:08,992 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:08,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:08,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255106725] [2024-11-08 15:01:08,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255106725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:01:08,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:01:08,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:01:08,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100887863] [2024-11-08 15:01:08,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:01:08,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:01:08,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:08,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:01:08,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:01:08,994 INFO L87 Difference]: Start difference. First operand 1074 states and 1775 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) [2024-11-08 15:01:10,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:10,324 INFO L93 Difference]: Finished difference Result 2728 states and 4553 transitions. [2024-11-08 15:01:10,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:01:10,325 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 [2024-11-08 15:01:10,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:10,335 INFO L225 Difference]: With dead ends: 2728 [2024-11-08 15:01:10,335 INFO L226 Difference]: Without dead ends: 1775 [2024-11-08 15:01:10,339 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 [2024-11-08 15:01:10,339 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1282 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1635 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 2079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 1635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:10,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 812 Invalid, 2079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 1635 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:01:10,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2024-11-08 15:01:10,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1582. [2024-11-08 15:01:10,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1261 states have (on average 1.6011102299762094) internal successors, (2019), 1268 states have internal predecessors, (2019), 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) [2024-11-08 15:01:10,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2636 transitions. [2024-11-08 15:01:10,414 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2636 transitions. Word has length 122 [2024-11-08 15:01:10,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:10,414 INFO L471 AbstractCegarLoop]: Abstraction has 1582 states and 2636 transitions. [2024-11-08 15:01:10,414 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) [2024-11-08 15:01:10,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2636 transitions. [2024-11-08 15:01:10,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 15:01:10,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:10,422 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] [2024-11-08 15:01:10,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 15:01:10,422 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:10,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:10,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1385173842, now seen corresponding path program 1 times [2024-11-08 15:01:10,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:10,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009868104] [2024-11-08 15:01:10,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:10,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:10,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 15:01:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:01:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 15:01:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:01:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:01:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-08 15:01:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 15:01:10,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:10,530 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:10,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:10,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009868104] [2024-11-08 15:01:10,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009868104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:01:10,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:01:10,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:01:10,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452465785] [2024-11-08 15:01:10,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:01:10,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:01:10,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:10,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:01:10,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:01:10,532 INFO L87 Difference]: Start difference. First operand 1582 states and 2636 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) [2024-11-08 15:01:12,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:12,266 INFO L93 Difference]: Finished difference Result 3880 states and 6562 transitions. [2024-11-08 15:01:12,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:01:12,267 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 [2024-11-08 15:01:12,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:12,280 INFO L225 Difference]: With dead ends: 3880 [2024-11-08 15:01:12,280 INFO L226 Difference]: Without dead ends: 2544 [2024-11-08 15:01:12,285 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 [2024-11-08 15:01:12,285 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1280 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1638 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 2074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 1638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:12,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 811 Invalid, 2074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 1638 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 15:01:12,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2024-11-08 15:01:12,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2351. [2024-11-08 15:01:12,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2351 states, 1907 states have (on average 1.609858416360776) internal successors, (3070), 1914 states have internal predecessors, (3070), 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) [2024-11-08 15:01:12,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2351 states to 2351 states and 3949 transitions. [2024-11-08 15:01:12,384 INFO L78 Accepts]: Start accepts. Automaton has 2351 states and 3949 transitions. Word has length 123 [2024-11-08 15:01:12,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:12,384 INFO L471 AbstractCegarLoop]: Abstraction has 2351 states and 3949 transitions. [2024-11-08 15:01:12,384 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) [2024-11-08 15:01:12,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2351 states and 3949 transitions. [2024-11-08 15:01:12,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 15:01:12,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:12,394 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] [2024-11-08 15:01:12,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 15:01:12,395 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:12,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:12,395 INFO L85 PathProgramCache]: Analyzing trace with hash 871381248, now seen corresponding path program 1 times [2024-11-08 15:01:12,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:12,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325857579] [2024-11-08 15:01:12,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:12,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:12,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 15:01:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:01:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 15:01:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 15:01:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:01:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-08 15:01:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 15:01:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:12,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:12,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325857579] [2024-11-08 15:01:12,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325857579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:01:12,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:01:12,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:01:12,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870493498] [2024-11-08 15:01:12,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:01:12,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:01:12,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:12,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:01:12,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:01:12,555 INFO L87 Difference]: Start difference. First operand 2351 states and 3949 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) [2024-11-08 15:01:13,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:13,934 INFO L93 Difference]: Finished difference Result 5674 states and 9696 transitions. [2024-11-08 15:01:13,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:01:13,935 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 [2024-11-08 15:01:13,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:13,954 INFO L225 Difference]: With dead ends: 5674 [2024-11-08 15:01:13,954 INFO L226 Difference]: Without dead ends: 3773 [2024-11-08 15:01:13,962 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 [2024-11-08 15:01:13,963 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1278 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1640 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:13,963 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 811 Invalid, 2075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1640 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:01:13,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3773 states. [2024-11-08 15:01:14,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3580. [2024-11-08 15:01:14,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3580 states, 2957 states have (on average 1.6154886709502874) internal successors, (4777), 2964 states have internal predecessors, (4777), 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) [2024-11-08 15:01:14,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 6040 transitions. [2024-11-08 15:01:14,139 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 6040 transitions. Word has length 124 [2024-11-08 15:01:14,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:14,139 INFO L471 AbstractCegarLoop]: Abstraction has 3580 states and 6040 transitions. [2024-11-08 15:01:14,139 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) [2024-11-08 15:01:14,139 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 6040 transitions. [2024-11-08 15:01:14,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 15:01:14,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:14,152 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] [2024-11-08 15:01:14,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 15:01:14,152 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:14,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:14,152 INFO L85 PathProgramCache]: Analyzing trace with hash -230197458, now seen corresponding path program 1 times [2024-11-08 15:01:14,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:14,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583461107] [2024-11-08 15:01:14,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:14,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 15:01:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:01:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-08 15:01:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:01:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:01:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 15:01:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:01:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:14,259 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:14,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:14,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583461107] [2024-11-08 15:01:14,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583461107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:01:14,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:01:14,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:01:14,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326207718] [2024-11-08 15:01:14,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:01:14,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:01:14,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:14,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:01:14,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:01:14,264 INFO L87 Difference]: Start difference. First operand 3580 states and 6040 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) [2024-11-08 15:01:15,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:15,818 INFO L93 Difference]: Finished difference Result 8622 states and 14843 transitions. [2024-11-08 15:01:15,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:01:15,820 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 [2024-11-08 15:01:15,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:15,852 INFO L225 Difference]: With dead ends: 8622 [2024-11-08 15:01:15,853 INFO L226 Difference]: Without dead ends: 5804 [2024-11-08 15:01:15,865 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 [2024-11-08 15:01:15,866 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1276 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1291 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:15,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1291 Valid, 835 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 15:01:15,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5804 states. [2024-11-08 15:01:16,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5804 to 5611. [2024-11-08 15:01:16,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5611 states, 4612 states have (on average 1.6107979184735473) internal successors, (7429), 4619 states have internal predecessors, (7429), 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) [2024-11-08 15:01:16,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5611 states to 5611 states and 9488 transitions. [2024-11-08 15:01:16,152 INFO L78 Accepts]: Start accepts. Automaton has 5611 states and 9488 transitions. Word has length 125 [2024-11-08 15:01:16,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:16,153 INFO L471 AbstractCegarLoop]: Abstraction has 5611 states and 9488 transitions. [2024-11-08 15:01:16,153 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) [2024-11-08 15:01:16,153 INFO L276 IsEmpty]: Start isEmpty. Operand 5611 states and 9488 transitions. [2024-11-08 15:01:16,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-08 15:01:16,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:16,171 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] [2024-11-08 15:01:16,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 15:01:16,171 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:16,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:16,171 INFO L85 PathProgramCache]: Analyzing trace with hash -649519836, now seen corresponding path program 1 times [2024-11-08 15:01:16,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:16,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658668791] [2024-11-08 15:01:16,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:16,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 15:01:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:01:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:01:16,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:01:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 15:01:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 15:01:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-08 15:01:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:16,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:16,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658668791] [2024-11-08 15:01:16,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658668791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:01:16,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:01:16,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:01:16,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647590869] [2024-11-08 15:01:16,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:01:16,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:01:16,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:16,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:01:16,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:01:16,292 INFO L87 Difference]: Start difference. First operand 5611 states and 9488 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) [2024-11-08 15:01:17,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:17,886 INFO L93 Difference]: Finished difference Result 13959 states and 24064 transitions. [2024-11-08 15:01:17,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:01:17,887 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 [2024-11-08 15:01:17,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:17,928 INFO L225 Difference]: With dead ends: 13959 [2024-11-08 15:01:17,928 INFO L226 Difference]: Without dead ends: 9487 [2024-11-08 15:01:17,945 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 [2024-11-08 15:01:17,946 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1274 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 1644 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 1644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:17,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 818 Invalid, 2087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 1644 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:01:17,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9487 states. [2024-11-08 15:01:18,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9487 to 9294. [2024-11-08 15:01:18,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9294 states, 7689 states have (on average 1.609442060085837) internal successors, (12375), 7696 states have internal predecessors, (12375), 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) [2024-11-08 15:01:18,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9294 states to 9294 states and 15724 transitions. [2024-11-08 15:01:18,364 INFO L78 Accepts]: Start accepts. Automaton has 9294 states and 15724 transitions. Word has length 126 [2024-11-08 15:01:18,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:18,365 INFO L471 AbstractCegarLoop]: Abstraction has 9294 states and 15724 transitions. [2024-11-08 15:01:18,365 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) [2024-11-08 15:01:18,366 INFO L276 IsEmpty]: Start isEmpty. Operand 9294 states and 15724 transitions. [2024-11-08 15:01:18,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 15:01:18,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:18,385 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] [2024-11-08 15:01:18,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 15:01:18,386 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:18,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:18,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1857425092, now seen corresponding path program 1 times [2024-11-08 15:01:18,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:18,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537722428] [2024-11-08 15:01:18,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:18,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:18,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:18,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 15:01:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 15:01:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 15:01:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-08 15:01:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-08 15:01:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 15:01:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 15:01:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:18,488 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:18,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:18,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537722428] [2024-11-08 15:01:18,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537722428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:01:18,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:01:18,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:01:18,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590604278] [2024-11-08 15:01:18,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:01:18,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:01:18,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:18,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:01:18,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:01:18,491 INFO L87 Difference]: Start difference. First operand 9294 states and 15724 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) [2024-11-08 15:01:20,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:20,068 INFO L93 Difference]: Finished difference Result 24143 states and 41610 transitions. [2024-11-08 15:01:20,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:01:20,069 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 [2024-11-08 15:01:20,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:20,123 INFO L225 Difference]: With dead ends: 24143 [2024-11-08 15:01:20,123 INFO L226 Difference]: Without dead ends: 16440 [2024-11-08 15:01:20,144 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 [2024-11-08 15:01:20,145 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 1272 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1287 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 2095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:20,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1287 Valid, 838 Invalid, 2095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 1652 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 15:01:20,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16440 states. [2024-11-08 15:01:20,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16440 to 16247. [2024-11-08 15:01:20,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16247 states, 13439 states have (on average 1.6010863903564254) internal successors, (21517), 13446 states have internal predecessors, (21517), 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) [2024-11-08 15:01:20,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16247 states to 16247 states and 27416 transitions. [2024-11-08 15:01:20,874 INFO L78 Accepts]: Start accepts. Automaton has 16247 states and 27416 transitions. Word has length 127 [2024-11-08 15:01:20,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:20,874 INFO L471 AbstractCegarLoop]: Abstraction has 16247 states and 27416 transitions. [2024-11-08 15:01:20,874 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) [2024-11-08 15:01:20,874 INFO L276 IsEmpty]: Start isEmpty. Operand 16247 states and 27416 transitions. [2024-11-08 15:01:20,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-08 15:01:20,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:20,910 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] [2024-11-08 15:01:20,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 15:01:20,910 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:20,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:20,911 INFO L85 PathProgramCache]: Analyzing trace with hash 786594501, now seen corresponding path program 1 times [2024-11-08 15:01:20,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:20,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049980672] [2024-11-08 15:01:20,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:20,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:20,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:20,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:20,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:21,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:21,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:21,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:21,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:21,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:01:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:21,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-08 15:01:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:21,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-08 15:01:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:21,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-08 15:01:21,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:21,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-08 15:01:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:21,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 15:01:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:21,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 15:01:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:21,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:21,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049980672] [2024-11-08 15:01:21,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049980672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:01:21,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:01:21,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:01:21,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607660758] [2024-11-08 15:01:21,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:01:21,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:01:21,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:21,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:01:21,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:01:21,051 INFO L87 Difference]: Start difference. First operand 16247 states and 27416 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) [2024-11-08 15:01:22,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:22,998 INFO L93 Difference]: Finished difference Result 43109 states and 74209 transitions. [2024-11-08 15:01:22,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:01:22,999 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 [2024-11-08 15:01:22,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:23,105 INFO L225 Difference]: With dead ends: 43109 [2024-11-08 15:01:23,106 INFO L226 Difference]: Without dead ends: 29095 [2024-11-08 15:01:23,142 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 [2024-11-08 15:01:23,143 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 1270 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1651 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 1651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:23,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 815 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 1651 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-08 15:01:23,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29095 states. [2024-11-08 15:01:24,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29095 to 28902. [2024-11-08 15:01:24,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28902 states, 24055 states have (on average 1.5972147162752026) internal successors, (38421), 24062 states have internal predecessors, (38421), 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) [2024-11-08 15:01:24,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28902 states to 28902 states and 48672 transitions. [2024-11-08 15:01:24,451 INFO L78 Accepts]: Start accepts. Automaton has 28902 states and 48672 transitions. Word has length 128 [2024-11-08 15:01:24,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:24,453 INFO L471 AbstractCegarLoop]: Abstraction has 28902 states and 48672 transitions. [2024-11-08 15:01:24,453 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) [2024-11-08 15:01:24,453 INFO L276 IsEmpty]: Start isEmpty. Operand 28902 states and 48672 transitions. [2024-11-08 15:01:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-08 15:01:24,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:24,486 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] [2024-11-08 15:01:24,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 15:01:24,486 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:24,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:24,487 INFO L85 PathProgramCache]: Analyzing trace with hash -310730562, now seen corresponding path program 1 times [2024-11-08 15:01:24,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:24,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726829283] [2024-11-08 15:01:24,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:24,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 15:01:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-08 15:01:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-08 15:01:24,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:01:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-08 15:01:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-08 15:01:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-08 15:01:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:24,773 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:24,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:24,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726829283] [2024-11-08 15:01:24,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726829283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:01:24,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:01:24,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:01:24,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947002580] [2024-11-08 15:01:24,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:01:24,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:01:24,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:24,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:01:24,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:01:24,776 INFO L87 Difference]: Start difference. First operand 28902 states and 48672 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) [2024-11-08 15:01:27,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:27,433 INFO L93 Difference]: Finished difference Result 78871 states and 134968 transitions. [2024-11-08 15:01:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:01:27,434 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 [2024-11-08 15:01:27,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:27,634 INFO L225 Difference]: With dead ends: 78871 [2024-11-08 15:01:27,635 INFO L226 Difference]: Without dead ends: 52974 [2024-11-08 15:01:27,704 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 [2024-11-08 15:01:27,705 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 1268 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1651 mSolverCounterSat, 443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 1651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:27,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 824 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 1651 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 15:01:27,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52974 states. [2024-11-08 15:01:29,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52974 to 52781. [2024-11-08 15:01:29,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52781 states, 44219 states have (on average 1.591849657387096) internal successors, (70390), 44226 states have internal predecessors, (70390), 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) [2024-11-08 15:01:29,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52781 states to 52781 states and 88603 transitions. [2024-11-08 15:01:29,947 INFO L78 Accepts]: Start accepts. Automaton has 52781 states and 88603 transitions. Word has length 129 [2024-11-08 15:01:29,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:29,947 INFO L471 AbstractCegarLoop]: Abstraction has 52781 states and 88603 transitions. [2024-11-08 15:01:29,948 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) [2024-11-08 15:01:29,948 INFO L276 IsEmpty]: Start isEmpty. Operand 52781 states and 88603 transitions. [2024-11-08 15:01:29,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-08 15:01:29,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:29,983 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] [2024-11-08 15:01:29,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 15:01:29,983 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:29,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1115203653, now seen corresponding path program 1 times [2024-11-08 15:01:29,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:29,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070866352] [2024-11-08 15:01:29,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:29,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:30,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 15:01:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 15:01:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-08 15:01:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 15:01:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 15:01:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-08 15:01:30,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 15:01:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:30,123 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:30,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:30,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070866352] [2024-11-08 15:01:30,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070866352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:01:30,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:01:30,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:01:30,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511347899] [2024-11-08 15:01:30,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:01:30,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:01:30,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:30,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:01:30,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:01:30,127 INFO L87 Difference]: Start difference. First operand 52781 states and 88603 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) [2024-11-08 15:01:33,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:33,436 INFO L93 Difference]: Finished difference Result 98642 states and 169155 transitions. [2024-11-08 15:01:33,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 15:01:33,436 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 [2024-11-08 15:01:33,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:33,860 INFO L225 Difference]: With dead ends: 98642 [2024-11-08 15:01:33,861 INFO L226 Difference]: Without dead ends: 98433 [2024-11-08 15:01:33,912 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 [2024-11-08 15:01:33,912 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1263 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 2091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:33,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 852 Invalid, 2091 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 15:01:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98433 states. [2024-11-08 15:01:36,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98433 to 98240. [2024-11-08 15:01:36,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98240 states, 82879 states have (on average 1.5849612085087899) internal successors, (131360), 82886 states have internal predecessors, (131360), 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) [2024-11-08 15:01:37,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98240 states to 98240 states and 164217 transitions. [2024-11-08 15:01:37,594 INFO L78 Accepts]: Start accepts. Automaton has 98240 states and 164217 transitions. Word has length 130 [2024-11-08 15:01:37,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:01:37,595 INFO L471 AbstractCegarLoop]: Abstraction has 98240 states and 164217 transitions. [2024-11-08 15:01:37,595 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) [2024-11-08 15:01:37,595 INFO L276 IsEmpty]: Start isEmpty. Operand 98240 states and 164217 transitions. [2024-11-08 15:01:37,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-08 15:01:37,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:01:37,640 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] [2024-11-08 15:01:37,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 15:01:37,641 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:01:37,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:01:37,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1651072355, now seen corresponding path program 1 times [2024-11-08 15:01:37,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:01:37,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543430427] [2024-11-08 15:01:37,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:01:37,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:01:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:37,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 15:01:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:37,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:01:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:37,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:01:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:38,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:01:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:38,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:01:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:38,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-08 15:01:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:38,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-08 15:01:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:38,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:01:38,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:38,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-08 15:01:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:38,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 15:01:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:38,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-08 15:01:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:38,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 15:01:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:38,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-08 15:01:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:01:38,148 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-08 15:01:38,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:01:38,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543430427] [2024-11-08 15:01:38,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543430427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:01:38,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:01:38,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-08 15:01:38,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790549070] [2024-11-08 15:01:38,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:01:38,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 15:01:38,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:01:38,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 15:01:38,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2024-11-08 15:01:38,152 INFO L87 Difference]: Start difference. First operand 98240 states and 164217 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) [2024-11-08 15:01:49,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:01:49,273 INFO L93 Difference]: Finished difference Result 196784 states and 340726 transitions. [2024-11-08 15:01:49,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-08 15:01:49,274 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 [2024-11-08 15:01:49,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:01:50,600 INFO L225 Difference]: With dead ends: 196784 [2024-11-08 15:01:50,600 INFO L226 Difference]: Without dead ends: 196581 [2024-11-08 15:01:50,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1380 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=900, Invalid=4070, Unknown=0, NotChecked=0, Total=4970 [2024-11-08 15:01:50,683 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 4774 mSDsluCounter, 2763 mSDsCounter, 0 mSdLazyCounter, 10596 mSolverCounterSat, 1585 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4774 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 12181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1585 IncrementalHoareTripleChecker+Valid, 10596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:01:50,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4774 Valid, 2996 Invalid, 12181 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1585 Valid, 10596 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-08 15:01:50,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196581 states. [2024-11-08 15:01:57,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196581 to 195730. [2024-11-08 15:01:57,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195730 states, 165182 states have (on average 1.5856630867770096) internal successors, (261923), 165087 states have internal predecessors, (261923), 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)