./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product16.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 8a7679b9688c44fd84543e8b684d34e72b379518d806d27199a245477e871776 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:35:45,959 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:35:46,014 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:35:46,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:35:46,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:35:46,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:35:46,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:35:46,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:35:46,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:35:46,050 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:35:46,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:35:46,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:35:46,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:35:46,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:35:46,052 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:35:46,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:35:46,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:35:46,053 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:35:46,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:35:46,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:35:46,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:35:46,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:35:46,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:35:46,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:35:46,056 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:35:46,057 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:35:46,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:35:46,057 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:35:46,058 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:35:46,058 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:35:46,058 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:35:46,058 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:35:46,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:35:46,059 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:35:46,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:35:46,060 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:35:46,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:35:46,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:35:46,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:35:46,061 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:35:46,061 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:35:46,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:35:46,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a7679b9688c44fd84543e8b684d34e72b379518d806d27199a245477e871776 [2024-10-12 19:35:46,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:35:46,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:35:46,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:35:46,352 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:35:46,353 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:35:46,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product16.cil.c [2024-10-12 19:35:47,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:35:48,108 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:35:48,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product16.cil.c [2024-10-12 19:35:48,142 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31d098f02/f7c3c577205d4aea82b78b513c37b7ec/FLAGbaaa0f3b5 [2024-10-12 19:35:48,158 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31d098f02/f7c3c577205d4aea82b78b513c37b7ec [2024-10-12 19:35:48,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:35:48,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:35:48,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:35:48,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:35:48,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:35:48,173 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:35:48" (1/1) ... [2024-10-12 19:35:48,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26465f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:48, skipping insertion in model container [2024-10-12 19:35:48,177 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:35:48" (1/1) ... [2024-10-12 19:35:48,248 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:35:48,818 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product16.cil.c[51682,51695] [2024-10-12 19:35:48,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:35:48,880 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:35:48,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-10-12 19:35:48,893 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1128] [2024-10-12 19:35:48,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1252] [2024-10-12 19:35:48,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1618] [2024-10-12 19:35:48,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1913] [2024-10-12 19:35:48,894 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2318] [2024-10-12 19:35:48,895 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [2327] [2024-10-12 19:35:48,895 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2369] [2024-10-12 19:35:48,896 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2585] [2024-10-12 19:35:48,896 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2620] [2024-10-12 19:35:48,896 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2637] [2024-10-12 19:35:49,005 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product16.cil.c[51682,51695] [2024-10-12 19:35:49,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:35:49,063 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:35:49,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49 WrapperNode [2024-10-12 19:35:49,064 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:35:49,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:35:49,065 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:35:49,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:35:49,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (1/1) ... [2024-10-12 19:35:49,099 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (1/1) ... [2024-10-12 19:35:49,150 INFO L138 Inliner]: procedures = 126, calls = 185, calls flagged for inlining = 57, calls inlined = 52, statements flattened = 1003 [2024-10-12 19:35:49,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:35:49,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:35:49,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:35:49,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:35:49,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (1/1) ... [2024-10-12 19:35:49,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (1/1) ... [2024-10-12 19:35:49,174 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (1/1) ... [2024-10-12 19:35:49,197 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-10-12 19:35:49,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (1/1) ... [2024-10-12 19:35:49,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (1/1) ... [2024-10-12 19:35:49,223 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (1/1) ... [2024-10-12 19:35:49,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (1/1) ... [2024-10-12 19:35:49,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (1/1) ... [2024-10-12 19:35:49,258 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (1/1) ... [2024-10-12 19:35:49,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:35:49,272 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:35:49,273 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:35:49,273 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:35:49,275 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (1/1) ... [2024-10-12 19:35:49,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:35:49,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:35:49,312 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) [2024-10-12 19:35:49,315 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 [2024-10-12 19:35:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-12 19:35:49,367 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-12 19:35:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-12 19:35:49,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-12 19:35:49,367 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-12 19:35:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-12 19:35:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-12 19:35:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-12 19:35:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-12 19:35:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-12 19:35:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-12 19:35:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-12 19:35:49,368 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-12 19:35:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-12 19:35:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-12 19:35:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-12 19:35:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:35:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-12 19:35:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-12 19:35:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-12 19:35:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-12 19:35:49,369 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-12 19:35:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-12 19:35:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-12 19:35:49,370 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-12 19:35:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-12 19:35:49,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-12 19:35:49,370 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-12 19:35:49,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-12 19:35:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-12 19:35:49,371 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-12 19:35:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:35:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 19:35:49,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 19:35:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 19:35:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-12 19:35:49,372 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-12 19:35:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:35:49,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:35:49,555 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:35:49,557 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:35:50,314 INFO L? ?]: Removed 417 outVars from TransFormulas that were not future-live. [2024-10-12 19:35:50,314 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:35:50,402 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:35:50,403 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 19:35:50,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:35:50 BoogieIcfgContainer [2024-10-12 19:35:50,403 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:35:50,405 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:35:50,405 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:35:50,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:35:50,412 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:35:48" (1/3) ... [2024-10-12 19:35:50,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781e67a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:35:50, skipping insertion in model container [2024-10-12 19:35:50,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:35:49" (2/3) ... [2024-10-12 19:35:50,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@781e67a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:35:50, skipping insertion in model container [2024-10-12 19:35:50,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:35:50" (3/3) ... [2024-10-12 19:35:50,417 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product16.cil.c [2024-10-12 19:35:50,448 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:35:50,448 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:35:50,549 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:35:50,558 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;@2f47fd0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:35:50,558 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:35:50,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 271 states, 208 states have (on average 1.6057692307692308) internal successors, (334), 212 states have internal predecessors, (334), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-12 19:35:50,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-12 19:35:50,583 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:35:50,584 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] [2024-10-12 19:35:50,584 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:35:50,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:35:50,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1938635458, now seen corresponding path program 1 times [2024-10-12 19:35:50,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:35:50,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888211529] [2024-10-12 19:35:50,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:35:50,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:35:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:35:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:35:51,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:35:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:35:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:35:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:35:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 19:35:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-12 19:35:51,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:35:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:35:51,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:35:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,335 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 19:35:51,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:35:51,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888211529] [2024-10-12 19:35:51,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888211529] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:35:51,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372121080] [2024-10-12 19:35:51,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:35:51,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:35:51,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:35:51,339 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) [2024-10-12 19:35:51,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 19:35:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:51,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 19:35:51,685 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:35:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:35:51,710 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:35:51,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372121080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:35:51,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:35:51,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-12 19:35:51,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874501070] [2024-10-12 19:35:51,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:35:51,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:35:51,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:35:51,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:35:51,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:35:51,753 INFO L87 Difference]: Start difference. First operand has 271 states, 208 states have (on average 1.6057692307692308) internal successors, (334), 212 states have internal predecessors, (334), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:35:51,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:35:51,861 INFO L93 Difference]: Finished difference Result 397 states and 611 transitions. [2024-10-12 19:35:51,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:35:51,865 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 83 [2024-10-12 19:35:51,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:35:51,882 INFO L225 Difference]: With dead ends: 397 [2024-10-12 19:35:51,882 INFO L226 Difference]: Without dead ends: 268 [2024-10-12 19:35:51,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:35:51,892 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:35:51,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 405 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:35:51,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-10-12 19:35:51,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-10-12 19:35:51,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 206 states have (on average 1.587378640776699) internal successors, (327), 209 states have internal predecessors, (327), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-12 19:35:51,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 416 transitions. [2024-10-12 19:35:51,962 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 416 transitions. Word has length 83 [2024-10-12 19:35:51,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:35:51,965 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 416 transitions. [2024-10-12 19:35:51,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:35:51,966 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 416 transitions. [2024-10-12 19:35:51,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-12 19:35:51,974 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:35:51,975 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] [2024-10-12 19:35:51,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 19:35:52,178 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 [2024-10-12 19:35:52,179 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:35:52,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:35:52,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1238143843, now seen corresponding path program 1 times [2024-10-12 19:35:52,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:35:52,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685942416] [2024-10-12 19:35:52,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:35:52,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:35:52,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:35:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:35:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:35:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:35:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:35:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:35:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-12 19:35:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 19:35:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:35:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:35:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:35:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-12 19:35:52,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:35:52,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685942416] [2024-10-12 19:35:52,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685942416] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:35:52,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099753007] [2024-10-12 19:35:52,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:35:52,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:35:52,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:35:52,438 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) [2024-10-12 19:35:52,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 19:35:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:52,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 19:35:52,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:35:52,813 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:35:52,813 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:35:52,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099753007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:35:52,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:35:52,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-12 19:35:52,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569182938] [2024-10-12 19:35:52,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:35:52,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:35:52,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:35:52,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:35:52,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:35:52,819 INFO L87 Difference]: Start difference. First operand 268 states and 416 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:35:52,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:35:52,894 INFO L93 Difference]: Finished difference Result 393 states and 598 transitions. [2024-10-12 19:35:52,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:35:52,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2024-10-12 19:35:52,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:35:52,902 INFO L225 Difference]: With dead ends: 393 [2024-10-12 19:35:52,902 INFO L226 Difference]: Without dead ends: 270 [2024-10-12 19:35:52,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:35:52,905 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 0 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:35:52,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 803 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:35:52,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-10-12 19:35:52,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-10-12 19:35:52,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 208 states have (on average 1.5817307692307692) internal successors, (329), 211 states have internal predecessors, (329), 45 states have call successors, (45), 16 states have call predecessors, (45), 16 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-10-12 19:35:52,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 418 transitions. [2024-10-12 19:35:52,943 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 418 transitions. Word has length 84 [2024-10-12 19:35:52,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:35:52,943 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 418 transitions. [2024-10-12 19:35:52,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:35:52,944 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 418 transitions. [2024-10-12 19:35:52,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-12 19:35:52,949 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:35:52,950 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] [2024-10-12 19:35:52,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 19:35:53,152 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 [2024-10-12 19:35:53,153 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:35:53,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:35:53,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1862940071, now seen corresponding path program 1 times [2024-10-12 19:35:53,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:35:53,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632482128] [2024-10-12 19:35:53,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:35:53,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:35:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:35:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:35:53,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:35:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:35:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:35:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:35:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-12 19:35:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:35:53,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:35:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:35:53,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:35:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,393 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:35:53,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:35:53,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632482128] [2024-10-12 19:35:53,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632482128] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:35:53,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849949843] [2024-10-12 19:35:53,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:35:53,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:35:53,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:35:53,397 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) [2024-10-12 19:35:53,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 19:35:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:53,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:35:53,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:35:53,692 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-12 19:35:53,695 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:35:53,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849949843] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:35:53,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:35:53,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-12 19:35:53,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818965445] [2024-10-12 19:35:53,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:35:53,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:35:53,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:35:53,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:35:53,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:35:53,699 INFO L87 Difference]: Start difference. First operand 270 states and 418 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:35:53,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:35:53,762 INFO L93 Difference]: Finished difference Result 570 states and 895 transitions. [2024-10-12 19:35:53,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:35:53,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2024-10-12 19:35:53,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:35:53,766 INFO L225 Difference]: With dead ends: 570 [2024-10-12 19:35:53,768 INFO L226 Difference]: Without dead ends: 322 [2024-10-12 19:35:53,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-12 19:35:53,771 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 102 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 774 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:35:53,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 774 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:35:53,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-10-12 19:35:53,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 317. [2024-10-12 19:35:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 244 states have (on average 1.5942622950819672) internal successors, (389), 247 states have internal predecessors, (389), 56 states have call successors, (56), 16 states have call predecessors, (56), 16 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-10-12 19:35:53,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 500 transitions. [2024-10-12 19:35:53,813 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 500 transitions. Word has length 89 [2024-10-12 19:35:53,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:35:53,813 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 500 transitions. [2024-10-12 19:35:53,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:35:53,814 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 500 transitions. [2024-10-12 19:35:53,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-12 19:35:53,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:35:53,816 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] [2024-10-12 19:35:53,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 19:35:54,020 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 [2024-10-12 19:35:54,021 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:35:54,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:35:54,022 INFO L85 PathProgramCache]: Analyzing trace with hash -973886180, now seen corresponding path program 1 times [2024-10-12 19:35:54,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:35:54,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280585179] [2024-10-12 19:35:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:35:54,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:35:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:35:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:35:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:35:54,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-12 19:35:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-12 19:35:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-12 19:35:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-12 19:35:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-12 19:35:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:35:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:35:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:35:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,300 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:35:54,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:35:54,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280585179] [2024-10-12 19:35:54,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280585179] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:35:54,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081789104] [2024-10-12 19:35:54,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:35:54,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:35:54,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:35:54,305 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) [2024-10-12 19:35:54,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 19:35:54,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:54,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 19:35:54,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:35:54,649 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-12 19:35:54,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:35:54,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081789104] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:35:54,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:35:54,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-12 19:35:54,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110837537] [2024-10-12 19:35:54,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:35:54,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:35:54,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:35:54,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:35:54,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:35:54,654 INFO L87 Difference]: Start difference. First operand 317 states and 500 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:35:54,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:35:54,751 INFO L93 Difference]: Finished difference Result 629 states and 994 transitions. [2024-10-12 19:35:54,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:35:54,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 90 [2024-10-12 19:35:54,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:35:54,754 INFO L225 Difference]: With dead ends: 629 [2024-10-12 19:35:54,754 INFO L226 Difference]: Without dead ends: 319 [2024-10-12 19:35:54,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:35:54,756 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 2 mSDsluCounter, 1171 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:35:54,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1565 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:35:54,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-10-12 19:35:54,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2024-10-12 19:35:54,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 245 states have (on average 1.5918367346938775) internal successors, (390), 249 states have internal predecessors, (390), 56 states have call successors, (56), 16 states have call predecessors, (56), 17 states have return successors, (57), 55 states have call predecessors, (57), 55 states have call successors, (57) [2024-10-12 19:35:54,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 503 transitions. [2024-10-12 19:35:54,775 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 503 transitions. Word has length 90 [2024-10-12 19:35:54,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:35:54,775 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 503 transitions. [2024-10-12 19:35:54,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:35:54,775 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 503 transitions. [2024-10-12 19:35:54,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-12 19:35:54,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:35:54,777 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] [2024-10-12 19:35:54,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 19:35:54,978 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 [2024-10-12 19:35:54,978 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:35:54,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:35:54,979 INFO L85 PathProgramCache]: Analyzing trace with hash -952253520, now seen corresponding path program 1 times [2024-10-12 19:35:54,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:35:54,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800344166] [2024-10-12 19:35:54,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:35:54,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:35:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:35:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:35:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:35:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:35:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-12 19:35:55,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-12 19:35:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-12 19:35:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:35:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 19:35:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:35:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:35:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,262 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 19:35:55,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:35:55,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800344166] [2024-10-12 19:35:55,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800344166] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:35:55,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407121197] [2024-10-12 19:35:55,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:35:55,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:35:55,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:35:55,265 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) [2024-10-12 19:35:55,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 19:35:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:55,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 19:35:55,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:35:55,580 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-12 19:35:55,580 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 19:35:55,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407121197] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:35:55,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 19:35:55,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-12 19:35:55,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002186397] [2024-10-12 19:35:55,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:35:55,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:35:55,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:35:55,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:35:55,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:35:55,583 INFO L87 Difference]: Start difference. First operand 319 states and 503 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:35:55,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:35:55,677 INFO L93 Difference]: Finished difference Result 631 states and 999 transitions. [2024-10-12 19:35:55,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:35:55,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 91 [2024-10-12 19:35:55,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:35:55,680 INFO L225 Difference]: With dead ends: 631 [2024-10-12 19:35:55,681 INFO L226 Difference]: Without dead ends: 321 [2024-10-12 19:35:55,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:35:55,683 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 2 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:35:55,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1551 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:35:55,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2024-10-12 19:35:55,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2024-10-12 19:35:55,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 246 states have (on average 1.589430894308943) internal successors, (391), 251 states have internal predecessors, (391), 56 states have call successors, (56), 16 states have call predecessors, (56), 18 states have return successors, (62), 55 states have call predecessors, (62), 55 states have call successors, (62) [2024-10-12 19:35:55,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 509 transitions. [2024-10-12 19:35:55,697 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 509 transitions. Word has length 91 [2024-10-12 19:35:55,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:35:55,698 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 509 transitions. [2024-10-12 19:35:55,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:35:55,698 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 509 transitions. [2024-10-12 19:35:55,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-12 19:35:55,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:35:55,700 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] [2024-10-12 19:35:55,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-12 19:35:55,901 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 [2024-10-12 19:35:55,901 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:35:55,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:35:55,902 INFO L85 PathProgramCache]: Analyzing trace with hash -926853964, now seen corresponding path program 1 times [2024-10-12 19:35:55,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:35:55,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015813546] [2024-10-12 19:35:55,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:35:55,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:35:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:56,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:35:56,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:56,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:35:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:56,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:35:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:56,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:35:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:56,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:35:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:56,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-12 19:35:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:56,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-12 19:35:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:56,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-12 19:35:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:56,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 19:35:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:56,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:35:56,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:56,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:35:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:35:56,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:35:56,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015813546] [2024-10-12 19:35:56,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015813546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:35:56,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:35:56,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:35:56,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102071768] [2024-10-12 19:35:56,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:35:56,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:35:56,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:35:56,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:35:56,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:35:56,106 INFO L87 Difference]: Start difference. First operand 321 states and 509 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:35:57,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:35:57,944 INFO L93 Difference]: Finished difference Result 738 states and 1180 transitions. [2024-10-12 19:35:57,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:35:57,945 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 92 [2024-10-12 19:35:57,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:35:57,948 INFO L225 Difference]: With dead ends: 738 [2024-10-12 19:35:57,948 INFO L226 Difference]: Without dead ends: 436 [2024-10-12 19:35:57,950 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-12 19:35:57,950 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 850 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-12 19:35:57,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 968 Invalid, 2426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 2155 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-12 19:35:57,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-10-12 19:35:57,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 321. [2024-10-12 19:35:57,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 246 states have (on average 1.589430894308943) internal successors, (391), 251 states have internal predecessors, (391), 56 states have call successors, (56), 16 states have call predecessors, (56), 18 states have return successors, (61), 55 states have call predecessors, (61), 55 states have call successors, (61) [2024-10-12 19:35:57,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 508 transitions. [2024-10-12 19:35:57,980 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 508 transitions. Word has length 92 [2024-10-12 19:35:57,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:35:57,981 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 508 transitions. [2024-10-12 19:35:57,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:35:57,981 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 508 transitions. [2024-10-12 19:35:57,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-12 19:35:57,984 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:35:57,984 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] [2024-10-12 19:35:57,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:35:57,985 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:35:57,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:35:57,986 INFO L85 PathProgramCache]: Analyzing trace with hash -317029334, now seen corresponding path program 2 times [2024-10-12 19:35:57,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:35:57,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825145047] [2024-10-12 19:35:57,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:35:57,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:35:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:58,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:35:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:58,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:35:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:58,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:35:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:58,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:35:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:58,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:35:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:58,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-12 19:35:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:58,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-12 19:35:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:58,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:35:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:58,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-12 19:35:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:58,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 19:35:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:58,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-12 19:35:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:35:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-12 19:35:58,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:35:58,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825145047] [2024-10-12 19:35:58,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825145047] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:35:58,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:35:58,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:35:58,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782258277] [2024-10-12 19:35:58,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:35:58,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:35:58,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:35:58,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:35:58,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:35:58,219 INFO L87 Difference]: Start difference. First operand 321 states and 508 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:35:59,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:35:59,973 INFO L93 Difference]: Finished difference Result 740 states and 1183 transitions. [2024-10-12 19:35:59,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:35:59,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 93 [2024-10-12 19:35:59,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:35:59,978 INFO L225 Difference]: With dead ends: 740 [2024-10-12 19:35:59,979 INFO L226 Difference]: Without dead ends: 438 [2024-10-12 19:35:59,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-12 19:35:59,981 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 846 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:35:59,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 968 Invalid, 2453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-12 19:35:59,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-10-12 19:36:00,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 323. [2024-10-12 19:36:00,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 247 states have (on average 1.5870445344129556) internal successors, (392), 253 states have internal predecessors, (392), 56 states have call successors, (56), 16 states have call predecessors, (56), 19 states have return successors, (63), 55 states have call predecessors, (63), 55 states have call successors, (63) [2024-10-12 19:36:00,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 511 transitions. [2024-10-12 19:36:00,016 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 511 transitions. Word has length 93 [2024-10-12 19:36:00,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:00,017 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 511 transitions. [2024-10-12 19:36:00,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (13), 6 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-10-12 19:36:00,017 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 511 transitions. [2024-10-12 19:36:00,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-12 19:36:00,019 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:00,019 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] [2024-10-12 19:36:00,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 19:36:00,019 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:00,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:00,020 INFO L85 PathProgramCache]: Analyzing trace with hash 958361999, now seen corresponding path program 1 times [2024-10-12 19:36:00,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:00,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371773905] [2024-10-12 19:36:00,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:00,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:00,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:00,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:00,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:00,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:00,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:00,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:00,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:00,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-12 19:36:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:00,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-12 19:36:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:00,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:36:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:00,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 19:36:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:00,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-12 19:36:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:00,239 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 19:36:00,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:00,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371773905] [2024-10-12 19:36:00,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371773905] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:00,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:00,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 19:36:00,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398776902] [2024-10-12 19:36:00,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:00,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 19:36:00,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:00,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 19:36:00,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:36:00,242 INFO L87 Difference]: Start difference. First operand 323 states and 511 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-12 19:36:02,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:02,622 INFO L93 Difference]: Finished difference Result 738 states and 1178 transitions. [2024-10-12 19:36:02,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:36:02,623 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 94 [2024-10-12 19:36:02,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:02,627 INFO L225 Difference]: With dead ends: 738 [2024-10-12 19:36:02,627 INFO L226 Difference]: Without dead ends: 438 [2024-10-12 19:36:02,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-12 19:36:02,632 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 850 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3594 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 3870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 3594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:02,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1343 Invalid, 3870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 3594 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-12 19:36:02,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-10-12 19:36:02,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 323. [2024-10-12 19:36:02,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 247 states have (on average 1.5870445344129556) internal successors, (392), 253 states have internal predecessors, (392), 56 states have call successors, (56), 16 states have call predecessors, (56), 19 states have return successors, (62), 55 states have call predecessors, (62), 55 states have call successors, (62) [2024-10-12 19:36:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 510 transitions. [2024-10-12 19:36:02,674 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 510 transitions. Word has length 94 [2024-10-12 19:36:02,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:02,675 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 510 transitions. [2024-10-12 19:36:02,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 8 states have internal predecessors, (62), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-12 19:36:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 510 transitions. [2024-10-12 19:36:02,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-12 19:36:02,681 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:02,681 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] [2024-10-12 19:36:02,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 19:36:02,684 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:02,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:02,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1790058869, now seen corresponding path program 2 times [2024-10-12 19:36:02,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:02,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472750330] [2024-10-12 19:36:02,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:02,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:02,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:02,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:02,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:02,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:02,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:02,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:02,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-12 19:36:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:02,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-12 19:36:02,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:02,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:36:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:02,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:36:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:02,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:36:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:02,903 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 19:36:02,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:02,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472750330] [2024-10-12 19:36:02,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472750330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:02,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:02,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-12 19:36:02,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754337408] [2024-10-12 19:36:02,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:02,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-12 19:36:02,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:02,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-12 19:36:02,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-12 19:36:02,906 INFO L87 Difference]: Start difference. First operand 323 states and 510 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-12 19:36:05,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:05,067 INFO L93 Difference]: Finished difference Result 740 states and 1184 transitions. [2024-10-12 19:36:05,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 19:36:05,067 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 95 [2024-10-12 19:36:05,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:05,071 INFO L225 Difference]: With dead ends: 740 [2024-10-12 19:36:05,071 INFO L226 Difference]: Without dead ends: 440 [2024-10-12 19:36:05,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-12 19:36:05,073 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 846 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3621 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 3895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 3621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:05,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 1344 Invalid, 3895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 3621 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-12 19:36:05,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-10-12 19:36:05,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 325. [2024-10-12 19:36:05,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 248 states have (on average 1.5846774193548387) internal successors, (393), 255 states have internal predecessors, (393), 56 states have call successors, (56), 16 states have call predecessors, (56), 20 states have return successors, (67), 55 states have call predecessors, (67), 55 states have call successors, (67) [2024-10-12 19:36:05,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 516 transitions. [2024-10-12 19:36:05,105 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 516 transitions. Word has length 95 [2024-10-12 19:36:05,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:05,105 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 516 transitions. [2024-10-12 19:36:05,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 8 states have internal predecessors, (63), 4 states have call successors, (13), 6 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2024-10-12 19:36:05,106 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 516 transitions. [2024-10-12 19:36:05,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-12 19:36:05,108 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:05,108 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] [2024-10-12 19:36:05,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 19:36:05,108 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:05,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:05,109 INFO L85 PathProgramCache]: Analyzing trace with hash -990072982, now seen corresponding path program 1 times [2024-10-12 19:36:05,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:05,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722446842] [2024-10-12 19:36:05,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:05,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:05,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:05,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-12 19:36:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-12 19:36:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:36:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:36:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:36:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:05,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:05,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722446842] [2024-10-12 19:36:05,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722446842] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:36:05,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443657213] [2024-10-12 19:36:05,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:05,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:36:05,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:36:05,284 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) [2024-10-12 19:36:05,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 19:36:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:05,542 INFO L255 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 19:36:05,545 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:36:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:05,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:36:05,667 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:05,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443657213] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:36:05,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:36:05,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-10-12 19:36:05,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724574930] [2024-10-12 19:36:05,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:36:05,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-12 19:36:05,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:05,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-12 19:36:05,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-12 19:36:05,670 INFO L87 Difference]: Start difference. First operand 325 states and 516 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-12 19:36:07,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:07,407 INFO L93 Difference]: Finished difference Result 893 states and 1496 transitions. [2024-10-12 19:36:07,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-12 19:36:07,408 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 96 [2024-10-12 19:36:07,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:07,415 INFO L225 Difference]: With dead ends: 893 [2024-10-12 19:36:07,416 INFO L226 Difference]: Without dead ends: 770 [2024-10-12 19:36:07,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-10-12 19:36:07,421 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1145 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 2745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:07,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 1405 Invalid, 2745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 2343 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-12 19:36:07,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2024-10-12 19:36:07,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 640. [2024-10-12 19:36:07,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 499 states have (on average 1.6392785571142285) internal successors, (818), 506 states have internal predecessors, (818), 120 states have call successors, (120), 16 states have call predecessors, (120), 20 states have return successors, (141), 119 states have call predecessors, (141), 119 states have call successors, (141) [2024-10-12 19:36:07,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 1079 transitions. [2024-10-12 19:36:07,470 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 1079 transitions. Word has length 96 [2024-10-12 19:36:07,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:07,470 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 1079 transitions. [2024-10-12 19:36:07,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-12 19:36:07,471 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 1079 transitions. [2024-10-12 19:36:07,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-12 19:36:07,475 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:07,475 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] [2024-10-12 19:36:07,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-12 19:36:07,676 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 [2024-10-12 19:36:07,677 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:07,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:07,677 INFO L85 PathProgramCache]: Analyzing trace with hash 994917549, now seen corresponding path program 1 times [2024-10-12 19:36:07,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:07,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753783248] [2024-10-12 19:36:07,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:07,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:07,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:07,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:07,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:07,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:07,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:07,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:07,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:07,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:36:07,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:07,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:36:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:07,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:36:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:07,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-12 19:36:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:07,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:36:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:07,816 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:07,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:07,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753783248] [2024-10-12 19:36:07,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753783248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:07,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:07,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:36:07,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831483563] [2024-10-12 19:36:07,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:07,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:36:07,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:07,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:36:07,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:36:07,818 INFO L87 Difference]: Start difference. First operand 640 states and 1079 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:09,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:09,249 INFO L93 Difference]: Finished difference Result 1652 states and 2845 transitions. [2024-10-12 19:36:09,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:36:09,250 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2024-10-12 19:36:09,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:09,259 INFO L225 Difference]: With dead ends: 1652 [2024-10-12 19:36:09,259 INFO L226 Difference]: Without dead ends: 1072 [2024-10-12 19:36:09,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:36:09,264 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 945 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:09,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 740 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 19:36:09,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-10-12 19:36:09,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 952. [2024-10-12 19:36:09,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 747 states have (on average 1.6465863453815262) internal successors, (1230), 754 states have internal predecessors, (1230), 184 states have call successors, (184), 16 states have call predecessors, (184), 20 states have return successors, (215), 183 states have call predecessors, (215), 183 states have call successors, (215) [2024-10-12 19:36:09,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1629 transitions. [2024-10-12 19:36:09,315 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1629 transitions. Word has length 102 [2024-10-12 19:36:09,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:09,315 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1629 transitions. [2024-10-12 19:36:09,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:09,315 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1629 transitions. [2024-10-12 19:36:09,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-12 19:36:09,321 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:09,321 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] [2024-10-12 19:36:09,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 19:36:09,321 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:09,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:09,322 INFO L85 PathProgramCache]: Analyzing trace with hash 2144748683, now seen corresponding path program 1 times [2024-10-12 19:36:09,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:09,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203982817] [2024-10-12 19:36:09,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:09,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:09,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:09,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:09,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:09,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:09,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:09,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:09,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:09,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-12 19:36:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:09,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:36:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:09,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:36:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:09,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-12 19:36:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:09,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:36:09,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:09,422 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:09,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:09,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203982817] [2024-10-12 19:36:09,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203982817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:09,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:09,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:36:09,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019028212] [2024-10-12 19:36:09,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:09,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:36:09,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:09,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:36:09,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:36:09,424 INFO L87 Difference]: Start difference. First operand 952 states and 1629 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:10,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:10,796 INFO L93 Difference]: Finished difference Result 2401 states and 4163 transitions. [2024-10-12 19:36:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:36:10,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-10-12 19:36:10,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:10,808 INFO L225 Difference]: With dead ends: 2401 [2024-10-12 19:36:10,808 INFO L226 Difference]: Without dead ends: 1559 [2024-10-12 19:36:10,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:36:10,814 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 943 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:10,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 710 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 19:36:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2024-10-12 19:36:10,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1439. [2024-10-12 19:36:10,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1139 states have (on average 1.6505706760316066) internal successors, (1880), 1146 states have internal predecessors, (1880), 279 states have call successors, (279), 16 states have call predecessors, (279), 20 states have return successors, (310), 278 states have call predecessors, (310), 278 states have call successors, (310) [2024-10-12 19:36:10,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 2469 transitions. [2024-10-12 19:36:10,911 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 2469 transitions. Word has length 103 [2024-10-12 19:36:10,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:10,912 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 2469 transitions. [2024-10-12 19:36:10,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:10,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 2469 transitions. [2024-10-12 19:36:10,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-12 19:36:10,919 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:10,919 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] [2024-10-12 19:36:10,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 19:36:10,920 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:10,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:10,920 INFO L85 PathProgramCache]: Analyzing trace with hash 639714379, now seen corresponding path program 1 times [2024-10-12 19:36:10,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:10,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077199260] [2024-10-12 19:36:10,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:10,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:10,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:10,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:10,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:10,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:10,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:10,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:10,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:10,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:11,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-12 19:36:11,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:11,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:36:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:11,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:36:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:11,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-12 19:36:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:11,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:36:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:11,027 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:11,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:11,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077199260] [2024-10-12 19:36:11,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077199260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:11,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:11,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:36:11,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826132455] [2024-10-12 19:36:11,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:11,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:36:11,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:11,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:36:11,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:36:11,030 INFO L87 Difference]: Start difference. First operand 1439 states and 2469 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:12,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:12,454 INFO L93 Difference]: Finished difference Result 3503 states and 6122 transitions. [2024-10-12 19:36:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:36:12,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-10-12 19:36:12,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:12,468 INFO L225 Difference]: With dead ends: 3503 [2024-10-12 19:36:12,468 INFO L226 Difference]: Without dead ends: 2294 [2024-10-12 19:36:12,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:36:12,474 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 941 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:12,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 708 Invalid, 1566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 19:36:12,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2024-10-12 19:36:12,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2174. [2024-10-12 19:36:12,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 1751 states have (on average 1.6544831524842947) internal successors, (2897), 1758 states have internal predecessors, (2897), 402 states have call successors, (402), 16 states have call predecessors, (402), 20 states have return successors, (449), 401 states have call predecessors, (449), 401 states have call successors, (449) [2024-10-12 19:36:12,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 3748 transitions. [2024-10-12 19:36:12,597 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 3748 transitions. Word has length 104 [2024-10-12 19:36:12,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:12,597 INFO L471 AbstractCegarLoop]: Abstraction has 2174 states and 3748 transitions. [2024-10-12 19:36:12,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:12,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 3748 transitions. [2024-10-12 19:36:12,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-12 19:36:12,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:12,607 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] [2024-10-12 19:36:12,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 19:36:12,607 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:12,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1149912886, now seen corresponding path program 1 times [2024-10-12 19:36:12,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:12,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370009044] [2024-10-12 19:36:12,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:12,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:12,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:12,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:12,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:12,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:12,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:12,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:12,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:12,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-12 19:36:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:12,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:36:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:12,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-12 19:36:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:12,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:36:12,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:12,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:36:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:12,715 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:12,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:12,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370009044] [2024-10-12 19:36:12,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370009044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:12,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:12,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:36:12,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543085141] [2024-10-12 19:36:12,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:12,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:36:12,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:12,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:36:12,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:36:12,718 INFO L87 Difference]: Start difference. First operand 2174 states and 3748 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:14,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:14,072 INFO L93 Difference]: Finished difference Result 5213 states and 9172 transitions. [2024-10-12 19:36:14,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:36:14,072 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-10-12 19:36:14,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:14,095 INFO L225 Difference]: With dead ends: 5213 [2024-10-12 19:36:14,095 INFO L226 Difference]: Without dead ends: 3466 [2024-10-12 19:36:14,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:36:14,105 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 939 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:14,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 708 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:36:14,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3466 states. [2024-10-12 19:36:14,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3466 to 3346. [2024-10-12 19:36:14,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3346 states, 2744 states have (on average 1.657069970845481) internal successors, (4547), 2751 states have internal predecessors, (4547), 581 states have call successors, (581), 16 states have call predecessors, (581), 20 states have return successors, (654), 580 states have call predecessors, (654), 580 states have call successors, (654) [2024-10-12 19:36:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 5782 transitions. [2024-10-12 19:36:14,272 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 5782 transitions. Word has length 105 [2024-10-12 19:36:14,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:14,272 INFO L471 AbstractCegarLoop]: Abstraction has 3346 states and 5782 transitions. [2024-10-12 19:36:14,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:14,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 5782 transitions. [2024-10-12 19:36:14,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-12 19:36:14,283 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:14,283 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] [2024-10-12 19:36:14,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 19:36:14,283 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:14,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash 3172495, now seen corresponding path program 1 times [2024-10-12 19:36:14,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:14,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382856560] [2024-10-12 19:36:14,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:14,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:14,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:14,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:14,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:14,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:14,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:14,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:14,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-12 19:36:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:14,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:36:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:14,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-12 19:36:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:14,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-12 19:36:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:14,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-12 19:36:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:14,417 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:14,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:14,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382856560] [2024-10-12 19:36:14,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382856560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:14,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:14,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:36:14,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607474601] [2024-10-12 19:36:14,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:14,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:36:14,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:14,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:36:14,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:36:14,418 INFO L87 Difference]: Start difference. First operand 3346 states and 5782 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:15,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:15,603 INFO L93 Difference]: Finished difference Result 8068 states and 14226 transitions. [2024-10-12 19:36:15,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:36:15,603 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-10-12 19:36:15,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:15,635 INFO L225 Difference]: With dead ends: 8068 [2024-10-12 19:36:15,635 INFO L226 Difference]: Without dead ends: 5436 [2024-10-12 19:36:15,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:36:15,647 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 937 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 1289 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 1289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:15,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [952 Valid, 747 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 1289 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 19:36:15,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5436 states. [2024-10-12 19:36:15,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5436 to 5316. [2024-10-12 19:36:15,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5316 states, 4338 states have (on average 1.6454587367450437) internal successors, (7138), 4345 states have internal predecessors, (7138), 957 states have call successors, (957), 16 states have call predecessors, (957), 20 states have return successors, (1074), 956 states have call predecessors, (1074), 956 states have call successors, (1074) [2024-10-12 19:36:15,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5316 states to 5316 states and 9169 transitions. [2024-10-12 19:36:15,895 INFO L78 Accepts]: Start accepts. Automaton has 5316 states and 9169 transitions. Word has length 106 [2024-10-12 19:36:15,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:15,895 INFO L471 AbstractCegarLoop]: Abstraction has 5316 states and 9169 transitions. [2024-10-12 19:36:15,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:15,896 INFO L276 IsEmpty]: Start isEmpty. Operand 5316 states and 9169 transitions. [2024-10-12 19:36:15,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-12 19:36:15,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:15,909 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] [2024-10-12 19:36:15,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 19:36:15,909 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:15,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:15,909 INFO L85 PathProgramCache]: Analyzing trace with hash -663420794, now seen corresponding path program 1 times [2024-10-12 19:36:15,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:15,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837889224] [2024-10-12 19:36:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:15,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:15,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:15,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:15,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:15,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:15,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:15,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:15,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:15,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:15,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:16,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:36:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:16,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:36:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:16,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-12 19:36:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:16,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-12 19:36:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:16,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-12 19:36:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:16,018 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:16,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:16,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837889224] [2024-10-12 19:36:16,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837889224] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:16,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:16,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:36:16,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955939167] [2024-10-12 19:36:16,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:16,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:36:16,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:16,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:36:16,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:36:16,020 INFO L87 Difference]: Start difference. First operand 5316 states and 9169 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:17,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:17,462 INFO L93 Difference]: Finished difference Result 13205 states and 23247 transitions. [2024-10-12 19:36:17,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:36:17,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2024-10-12 19:36:17,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:17,525 INFO L225 Difference]: With dead ends: 13205 [2024-10-12 19:36:17,526 INFO L226 Difference]: Without dead ends: 8969 [2024-10-12 19:36:17,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:36:17,552 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 935 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:17,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 721 Invalid, 1600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 19:36:17,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8969 states. [2024-10-12 19:36:17,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8969 to 8849. [2024-10-12 19:36:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8849 states, 7265 states have (on average 1.6426703372333105) internal successors, (11934), 7272 states have internal predecessors, (11934), 1563 states have call successors, (1563), 16 states have call predecessors, (1563), 20 states have return successors, (1758), 1562 states have call predecessors, (1758), 1562 states have call successors, (1758) [2024-10-12 19:36:17,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8849 states to 8849 states and 15255 transitions. [2024-10-12 19:36:17,994 INFO L78 Accepts]: Start accepts. Automaton has 8849 states and 15255 transitions. Word has length 107 [2024-10-12 19:36:17,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:17,995 INFO L471 AbstractCegarLoop]: Abstraction has 8849 states and 15255 transitions. [2024-10-12 19:36:17,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:17,996 INFO L276 IsEmpty]: Start isEmpty. Operand 8849 states and 15255 transitions. [2024-10-12 19:36:18,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-12 19:36:18,013 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:18,013 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] [2024-10-12 19:36:18,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 19:36:18,014 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:18,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash 151086433, now seen corresponding path program 1 times [2024-10-12 19:36:18,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:18,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008256101] [2024-10-12 19:36:18,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:18,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:18,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:18,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:18,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:18,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:18,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:18,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:18,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:18,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:18,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-12 19:36:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:18,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-12 19:36:18,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:18,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-12 19:36:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:18,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-12 19:36:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:18,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-12 19:36:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:18,122 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:18,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:18,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008256101] [2024-10-12 19:36:18,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008256101] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:18,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:18,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:36:18,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468369575] [2024-10-12 19:36:18,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:18,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:36:18,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:18,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:36:18,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:36:18,128 INFO L87 Difference]: Start difference. First operand 8849 states and 15255 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:19,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:19,676 INFO L93 Difference]: Finished difference Result 22977 states and 40381 transitions. [2024-10-12 19:36:19,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:36:19,677 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-10-12 19:36:19,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:19,747 INFO L225 Difference]: With dead ends: 22977 [2024-10-12 19:36:19,747 INFO L226 Difference]: Without dead ends: 15641 [2024-10-12 19:36:19,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:36:19,870 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 933 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:19,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 754 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:36:19,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15641 states. [2024-10-12 19:36:20,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15641 to 15521. [2024-10-12 19:36:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15521 states, 12734 states have (on average 1.633029684309722) internal successors, (20795), 12741 states have internal predecessors, (20795), 2766 states have call successors, (2766), 16 states have call predecessors, (2766), 20 states have return successors, (3105), 2765 states have call predecessors, (3105), 2765 states have call successors, (3105) [2024-10-12 19:36:20,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15521 states to 15521 states and 26666 transitions. [2024-10-12 19:36:20,646 INFO L78 Accepts]: Start accepts. Automaton has 15521 states and 26666 transitions. Word has length 108 [2024-10-12 19:36:20,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:20,647 INFO L471 AbstractCegarLoop]: Abstraction has 15521 states and 26666 transitions. [2024-10-12 19:36:20,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:20,647 INFO L276 IsEmpty]: Start isEmpty. Operand 15521 states and 26666 transitions. [2024-10-12 19:36:20,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-10-12 19:36:20,677 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:20,678 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] [2024-10-12 19:36:20,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 19:36:20,678 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:20,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:20,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1683026011, now seen corresponding path program 1 times [2024-10-12 19:36:20,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:20,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655043609] [2024-10-12 19:36:20,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:20,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:20,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:20,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:20,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:20,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:20,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:20,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:20,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-12 19:36:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:20,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-12 19:36:20,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:20,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-12 19:36:20,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:20,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-12 19:36:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:20,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-12 19:36:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:20,823 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:20,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:20,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655043609] [2024-10-12 19:36:20,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655043609] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:20,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:20,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:36:20,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204454323] [2024-10-12 19:36:20,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:20,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:36:20,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:20,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:36:20,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:36:20,826 INFO L87 Difference]: Start difference. First operand 15521 states and 26666 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:22,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:22,513 INFO L93 Difference]: Finished difference Result 41144 states and 72181 transitions. [2024-10-12 19:36:22,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:36:22,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-10-12 19:36:22,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:22,640 INFO L225 Difference]: With dead ends: 41144 [2024-10-12 19:36:22,640 INFO L226 Difference]: Without dead ends: 27756 [2024-10-12 19:36:22,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:36:22,683 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 931 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:22,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 712 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 19:36:22,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27756 states. [2024-10-12 19:36:23,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27756 to 27636. [2024-10-12 19:36:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27636 states, 22810 states have (on average 1.6290661990355106) internal successors, (37159), 22817 states have internal predecessors, (37159), 4805 states have call successors, (4805), 16 states have call predecessors, (4805), 20 states have return successors, (5418), 4804 states have call predecessors, (5418), 4804 states have call successors, (5418) [2024-10-12 19:36:24,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27636 states to 27636 states and 47382 transitions. [2024-10-12 19:36:24,031 INFO L78 Accepts]: Start accepts. Automaton has 27636 states and 47382 transitions. Word has length 109 [2024-10-12 19:36:24,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:24,032 INFO L471 AbstractCegarLoop]: Abstraction has 27636 states and 47382 transitions. [2024-10-12 19:36:24,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:24,033 INFO L276 IsEmpty]: Start isEmpty. Operand 27636 states and 47382 transitions. [2024-10-12 19:36:24,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-12 19:36:24,071 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:24,071 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] [2024-10-12 19:36:24,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 19:36:24,072 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:24,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:24,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1893763009, now seen corresponding path program 1 times [2024-10-12 19:36:24,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:24,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832171920] [2024-10-12 19:36:24,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:24,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:24,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:24,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:24,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:24,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:24,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:24,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:24,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:24,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-12 19:36:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:24,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-12 19:36:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:24,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-12 19:36:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:24,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-12 19:36:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:24,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-12 19:36:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:24,183 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:24,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:24,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832171920] [2024-10-12 19:36:24,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832171920] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:24,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:24,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:36:24,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399225525] [2024-10-12 19:36:24,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:24,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:36:24,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:24,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:36:24,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:36:24,187 INFO L87 Difference]: Start difference. First operand 27636 states and 47382 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:26,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:26,542 INFO L93 Difference]: Finished difference Result 75336 states and 131370 transitions. [2024-10-12 19:36:26,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:36:26,543 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-10-12 19:36:26,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:26,792 INFO L225 Difference]: With dead ends: 75336 [2024-10-12 19:36:26,792 INFO L226 Difference]: Without dead ends: 50580 [2024-10-12 19:36:26,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:36:26,872 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 929 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1248 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 1248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:26,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [944 Valid, 715 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 1248 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 19:36:26,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50580 states. [2024-10-12 19:36:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50580 to 50460. [2024-10-12 19:36:29,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50460 states, 41919 states have (on average 1.6239175552851928) internal successors, (68073), 41926 states have internal predecessors, (68073), 8520 states have call successors, (8520), 16 states have call predecessors, (8520), 20 states have return successors, (9665), 8519 states have call predecessors, (9665), 8519 states have call successors, (9665) [2024-10-12 19:36:29,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50460 states to 50460 states and 86258 transitions. [2024-10-12 19:36:29,697 INFO L78 Accepts]: Start accepts. Automaton has 50460 states and 86258 transitions. Word has length 110 [2024-10-12 19:36:29,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:29,700 INFO L471 AbstractCegarLoop]: Abstraction has 50460 states and 86258 transitions. [2024-10-12 19:36:29,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 50460 states and 86258 transitions. [2024-10-12 19:36:29,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-10-12 19:36:29,725 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:29,725 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] [2024-10-12 19:36:29,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 19:36:29,726 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:29,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:29,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1435949189, now seen corresponding path program 1 times [2024-10-12 19:36:29,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:29,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325536680] [2024-10-12 19:36:29,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:29,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:29,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:29,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:29,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:29,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:29,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:29,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:29,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:29,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-12 19:36:29,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:29,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-12 19:36:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:29,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-12 19:36:29,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:29,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-12 19:36:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:29,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-12 19:36:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:29,848 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:29,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:29,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325536680] [2024-10-12 19:36:29,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325536680] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:29,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:29,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:36:29,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354930585] [2024-10-12 19:36:29,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:29,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:36:29,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:29,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:36:29,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:36:29,851 INFO L87 Difference]: Start difference. First operand 50460 states and 86258 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:32,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:32,991 INFO L93 Difference]: Finished difference Result 94083 states and 164533 transitions. [2024-10-12 19:36:32,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 19:36:32,992 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-10-12 19:36:32,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:33,716 INFO L225 Difference]: With dead ends: 94083 [2024-10-12 19:36:33,716 INFO L226 Difference]: Without dead ends: 93960 [2024-10-12 19:36:33,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-12 19:36:33,763 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 924 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:33,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 724 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 19:36:33,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93960 states. [2024-10-12 19:36:36,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93960 to 93840. [2024-10-12 19:36:36,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93840 states, 78500 states have (on average 1.617375796178344) internal successors, (126964), 78507 states have internal predecessors, (126964), 15319 states have call successors, (15319), 16 states have call predecessors, (15319), 20 states have return successors, (17510), 15318 states have call predecessors, (17510), 15318 states have call successors, (17510) [2024-10-12 19:36:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93840 states to 93840 states and 159793 transitions. [2024-10-12 19:36:37,693 INFO L78 Accepts]: Start accepts. Automaton has 93840 states and 159793 transitions. Word has length 111 [2024-10-12 19:36:37,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:36:37,694 INFO L471 AbstractCegarLoop]: Abstraction has 93840 states and 159793 transitions. [2024-10-12 19:36:37,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-10-12 19:36:37,695 INFO L276 IsEmpty]: Start isEmpty. Operand 93840 states and 159793 transitions. [2024-10-12 19:36:37,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-10-12 19:36:37,724 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:36:37,724 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] [2024-10-12 19:36:37,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 19:36:37,724 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:36:37,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:36:37,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1397899872, now seen corresponding path program 1 times [2024-10-12 19:36:37,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:36:37,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217488396] [2024-10-12 19:36:37,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:36:37,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:36:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:38,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:36:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:38,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:36:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:38,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:36:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:38,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-12 19:36:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:38,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-12 19:36:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:38,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-12 19:36:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:38,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:36:38,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:38,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-12 19:36:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:38,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-12 19:36:38,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:38,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-12 19:36:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:38,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-12 19:36:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:36:38,172 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-12 19:36:38,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:36:38,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217488396] [2024-10-12 19:36:38,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217488396] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:36:38,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:36:38,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-12 19:36:38,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079497220] [2024-10-12 19:36:38,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:36:38,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-12 19:36:38,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:36:38,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-12 19:36:38,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-10-12 19:36:38,175 INFO L87 Difference]: Start difference. First operand 93840 states and 159793 transitions. Second operand has 16 states, 15 states have (on average 5.0) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2024-10-12 19:36:47,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:36:47,008 INFO L93 Difference]: Finished difference Result 187329 states and 330974 transitions. [2024-10-12 19:36:47,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-10-12 19:36:47,008 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.0) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (13), 7 states have call predecessors, (13), 3 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 112 [2024-10-12 19:36:47,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:36:48,124 INFO L225 Difference]: With dead ends: 187329 [2024-10-12 19:36:48,124 INFO L226 Difference]: Without dead ends: 187211 [2024-10-12 19:36:48,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 950 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=648, Invalid=2544, Unknown=0, NotChecked=0, Total=3192 [2024-10-12 19:36:48,212 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 2966 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 5667 mSolverCounterSat, 975 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 2352 SdHoareTripleChecker+Invalid, 6642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 975 IncrementalHoareTripleChecker+Valid, 5667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:36:48,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 2352 Invalid, 6642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [975 Valid, 5667 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-10-12 19:36:48,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187211 states.