./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_spec7_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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_spec7_product31.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 77705a63487ad2667abe7e61d03fbac9d343255168bc183f3ebec6cdcc7d3824 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:02:37,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:02:37,559 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:02:37,562 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:02:37,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:02:37,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:02:37,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:02:37,577 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:02:37,577 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:02:37,578 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:02:37,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:02:37,579 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:02:37,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:02:37,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:02:37,581 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:02:37,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:02:37,582 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:02:37,582 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:02:37,582 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:02:37,582 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:02:37,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:02:37,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:02:37,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:02:37,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:02:37,584 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:02:37,585 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:02:37,585 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:02:37,585 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:02:37,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:02:37,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:02:37,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:02:37,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:02:37,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:02:37,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:02:37,587 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:02:37,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:02:37,587 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:02:37,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:02:37,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:02:37,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:02:37,588 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:02:37,588 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:02:37,588 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77705a63487ad2667abe7e61d03fbac9d343255168bc183f3ebec6cdcc7d3824 [2024-10-14 03:02:37,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:02:37,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:02:37,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:02:37,816 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:02:37,816 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:02:37,817 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product31.cil.c [2024-10-14 03:02:39,087 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:02:39,349 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:02:39,350 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec7_product31.cil.c [2024-10-14 03:02:39,372 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db1c8aa45/7d1ce885334e44c8836dc81037c9ba2c/FLAG4816acae4 [2024-10-14 03:02:39,386 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db1c8aa45/7d1ce885334e44c8836dc81037c9ba2c [2024-10-14 03:02:39,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:02:39,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:02:39,392 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:02:39,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:02:39,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:02:39,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:02:39" (1/1) ... [2024-10-14 03:02:39,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69c65ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:39, skipping insertion in model container [2024-10-14 03:02:39,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:02:39" (1/1) ... [2024-10-14 03:02:39,449 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:02:39,662 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_spec7_product31.cil.c[7290,7303] [2024-10-14 03:02:39,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:02:39,873 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:02:39,882 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-10-14 03:02:39,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [363] [2024-10-14 03:02:39,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [383] [2024-10-14 03:02:39,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [392] [2024-10-14 03:02:39,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [764] [2024-10-14 03:02:39,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1163] [2024-10-14 03:02:39,886 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1529] [2024-10-14 03:02:39,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1664] [2024-10-14 03:02:39,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1681] [2024-10-14 03:02:39,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1716] [2024-10-14 03:02:39,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2783] [2024-10-14 03:02:39,905 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_spec7_product31.cil.c[7290,7303] [2024-10-14 03:02:39,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:02:40,013 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:02:40,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40 WrapperNode [2024-10-14 03:02:40,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:02:40,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:02:40,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:02:40,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:02:40,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (1/1) ... [2024-10-14 03:02:40,054 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (1/1) ... [2024-10-14 03:02:40,102 INFO L138 Inliner]: procedures = 131, calls = 203, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1018 [2024-10-14 03:02:40,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:02:40,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:02:40,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:02:40,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:02:40,115 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (1/1) ... [2024-10-14 03:02:40,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (1/1) ... [2024-10-14 03:02:40,121 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (1/1) ... [2024-10-14 03:02:40,185 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]. [2024-10-14 03:02:40,190 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (1/1) ... [2024-10-14 03:02:40,191 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (1/1) ... [2024-10-14 03:02:40,230 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (1/1) ... [2024-10-14 03:02:40,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (1/1) ... [2024-10-14 03:02:40,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (1/1) ... [2024-10-14 03:02:40,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (1/1) ... [2024-10-14 03:02:40,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:02:40,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:02:40,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:02:40,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:02:40,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (1/1) ... [2024-10-14 03:02:40,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:02:40,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:02:40,301 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) [2024-10-14 03:02:40,308 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 [2024-10-14 03:02:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-10-14 03:02:40,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-10-14 03:02:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-14 03:02:40,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-14 03:02:40,344 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-14 03:02:40,345 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-14 03:02:40,345 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-14 03:02:40,345 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-14 03:02:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-14 03:02:40,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-14 03:02:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-14 03:02:40,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-14 03:02:40,346 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-14 03:02:40,347 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-14 03:02:40,347 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-14 03:02:40,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-14 03:02:40,347 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-14 03:02:40,347 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-14 03:02:40,348 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-14 03:02:40,348 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-14 03:02:40,348 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-14 03:02:40,348 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-14 03:02:40,349 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-14 03:02:40,349 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-14 03:02:40,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:02:40,349 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-14 03:02:40,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-14 03:02:40,349 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-14 03:02:40,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-14 03:02:40,349 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-14 03:02:40,349 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-14 03:02:40,349 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-14 03:02:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-14 03:02:40,350 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-14 03:02:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-14 03:02:40,350 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-14 03:02:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-14 03:02:40,350 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-14 03:02:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-14 03:02:40,350 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-14 03:02:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-14 03:02:40,351 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-14 03:02:40,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-14 03:02:40,351 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-14 03:02:40,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-14 03:02:40,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:02:40,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-14 03:02:40,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-14 03:02:40,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-14 03:02:40,352 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-14 03:02:40,352 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-14 03:02:40,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:02:40,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:02:40,513 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:02:40,515 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:02:41,135 INFO L? ?]: Removed 473 outVars from TransFormulas that were not future-live. [2024-10-14 03:02:41,135 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:02:41,193 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:02:41,193 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 03:02:41,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:02:41 BoogieIcfgContainer [2024-10-14 03:02:41,195 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:02:41,198 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:02:41,198 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:02:41,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:02:41,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:02:39" (1/3) ... [2024-10-14 03:02:41,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1929cb71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:02:41, skipping insertion in model container [2024-10-14 03:02:41,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:02:40" (2/3) ... [2024-10-14 03:02:41,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1929cb71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:02:41, skipping insertion in model container [2024-10-14 03:02:41,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:02:41" (3/3) ... [2024-10-14 03:02:41,202 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product31.cil.c [2024-10-14 03:02:41,254 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:02:41,254 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:02:41,316 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:02:41,321 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;@3b009587, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:02:41,321 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:02:41,327 INFO L276 IsEmpty]: Start isEmpty. Operand has 335 states, 252 states have (on average 1.5634920634920635) internal successors, (394), 256 states have internal predecessors, (394), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-14 03:02:41,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-14 03:02:41,345 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:41,345 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:41,346 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:41,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:41,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1424404715, now seen corresponding path program 1 times [2024-10-14 03:02:41,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:41,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881723850] [2024-10-14 03:02:41,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:41,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 03:02:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 03:02:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 03:02:41,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 03:02:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 03:02:41,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 03:02:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 03:02:41,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 03:02:41,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 03:02:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 03:02:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 03:02:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 03:02:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:41,966 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 03:02:41,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:41,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881723850] [2024-10-14 03:02:41,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881723850] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:02:41,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258391939] [2024-10-14 03:02:41,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:41,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:02:41,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:02:41,972 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) [2024-10-14 03:02:41,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 03:02:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-14 03:02:42,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:02:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 03:02:42,271 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:02:42,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258391939] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:02:42,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:02:42,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-14 03:02:42,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687503630] [2024-10-14 03:02:42,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:02:42,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 03:02:42,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:42,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 03:02:42,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:02:42,303 INFO L87 Difference]: Start difference. First operand has 335 states, 252 states have (on average 1.5634920634920635) internal successors, (394), 256 states have internal predecessors, (394), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:02:42,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:02:42,387 INFO L93 Difference]: Finished difference Result 525 states and 783 transitions. [2024-10-14 03:02:42,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 03:02:42,389 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 114 [2024-10-14 03:02:42,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:02:42,401 INFO L225 Difference]: With dead ends: 525 [2024-10-14 03:02:42,401 INFO L226 Difference]: Without dead ends: 332 [2024-10-14 03:02:42,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:02:42,411 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:02:42,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 490 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:02:42,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-10-14 03:02:42,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2024-10-14 03:02:42,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 250 states have (on average 1.548) internal successors, (387), 253 states have internal predecessors, (387), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-10-14 03:02:42,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 502 transitions. [2024-10-14 03:02:42,479 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 502 transitions. Word has length 114 [2024-10-14 03:02:42,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:02:42,480 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 502 transitions. [2024-10-14 03:02:42,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:02:42,481 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 502 transitions. [2024-10-14 03:02:42,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-14 03:02:42,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:42,485 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:42,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 03:02:42,685 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 [2024-10-14 03:02:42,686 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:42,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:42,687 INFO L85 PathProgramCache]: Analyzing trace with hash -407992104, now seen corresponding path program 1 times [2024-10-14 03:02:42,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:42,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912014084] [2024-10-14 03:02:42,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:42,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 03:02:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 03:02:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 03:02:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-14 03:02:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 03:02:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 03:02:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 03:02:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 03:02:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 03:02:42,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 03:02:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 03:02:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 03:02:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:42,948 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-14 03:02:42,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:42,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912014084] [2024-10-14 03:02:42,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912014084] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:02:42,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825197408] [2024-10-14 03:02:42,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:42,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:02:42,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:02:42,953 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) [2024-10-14 03:02:42,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 03:02:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 03:02:43,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:02:43,243 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 03:02:43,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:02:43,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825197408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:02:43,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:02:43,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-14 03:02:43,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019162054] [2024-10-14 03:02:43,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:02:43,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:02:43,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:43,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:02:43,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:02:43,246 INFO L87 Difference]: Start difference. First operand 332 states and 502 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:02:43,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:02:43,313 INFO L93 Difference]: Finished difference Result 521 states and 770 transitions. [2024-10-14 03:02:43,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:02:43,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 115 [2024-10-14 03:02:43,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:02:43,316 INFO L225 Difference]: With dead ends: 521 [2024-10-14 03:02:43,316 INFO L226 Difference]: Without dead ends: 334 [2024-10-14 03:02:43,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:02:43,318 INFO L432 NwaCegarLoop]: 487 mSDtfsCounter, 0 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:02:43,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 973 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:02:43,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-10-14 03:02:43,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2024-10-14 03:02:43,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 252 states have (on average 1.5436507936507937) internal successors, (389), 255 states have internal predecessors, (389), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-10-14 03:02:43,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 504 transitions. [2024-10-14 03:02:43,335 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 504 transitions. Word has length 115 [2024-10-14 03:02:43,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:02:43,336 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 504 transitions. [2024-10-14 03:02:43,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:02:43,336 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 504 transitions. [2024-10-14 03:02:43,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-14 03:02:43,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:43,338 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:43,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 03:02:43,542 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 [2024-10-14 03:02:43,543 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:43,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:43,543 INFO L85 PathProgramCache]: Analyzing trace with hash 690428878, now seen corresponding path program 1 times [2024-10-14 03:02:43,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:43,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586243989] [2024-10-14 03:02:43,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:43,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 03:02:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 03:02:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 03:02:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 03:02:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 03:02:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 03:02:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 03:02:43,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 03:02:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 03:02:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 03:02:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 03:02:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 03:02:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:43,827 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-14 03:02:43,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:43,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586243989] [2024-10-14 03:02:43,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586243989] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:02:43,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049211988] [2024-10-14 03:02:43,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:43,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:02:43,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:02:43,829 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) [2024-10-14 03:02:43,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 03:02:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 03:02:44,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:02:44,081 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 03:02:44,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:02:44,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049211988] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:02:44,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:02:44,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-14 03:02:44,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033420272] [2024-10-14 03:02:44,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:02:44,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:02:44,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:44,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:02:44,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:02:44,086 INFO L87 Difference]: Start difference. First operand 334 states and 504 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:02:44,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:02:44,135 INFO L93 Difference]: Finished difference Result 698 states and 1067 transitions. [2024-10-14 03:02:44,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:02:44,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 120 [2024-10-14 03:02:44,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:02:44,139 INFO L225 Difference]: With dead ends: 698 [2024-10-14 03:02:44,140 INFO L226 Difference]: Without dead ends: 386 [2024-10-14 03:02:44,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 03:02:44,143 INFO L432 NwaCegarLoop]: 497 mSDtfsCounter, 102 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:02:44,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 941 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:02:44,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-10-14 03:02:44,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 381. [2024-10-14 03:02:44,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 288 states have (on average 1.5590277777777777) internal successors, (449), 291 states have internal predecessors, (449), 69 states have call successors, (69), 23 states have call predecessors, (69), 23 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-10-14 03:02:44,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 586 transitions. [2024-10-14 03:02:44,175 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 586 transitions. Word has length 120 [2024-10-14 03:02:44,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:02:44,175 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 586 transitions. [2024-10-14 03:02:44,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:02:44,177 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 586 transitions. [2024-10-14 03:02:44,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-14 03:02:44,180 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:44,180 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:44,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 03:02:44,383 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 [2024-10-14 03:02:44,384 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:44,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:44,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1105393125, now seen corresponding path program 1 times [2024-10-14 03:02:44,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:44,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96341693] [2024-10-14 03:02:44,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:44,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-14 03:02:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 03:02:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-14 03:02:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-14 03:02:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 03:02:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 03:02:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 03:02:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 03:02:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 03:02:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 03:02:44,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 03:02:44,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 03:02:44,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,607 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-14 03:02:44,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:44,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96341693] [2024-10-14 03:02:44,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96341693] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:02:44,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373335137] [2024-10-14 03:02:44,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:44,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:02:44,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:02:44,613 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) [2024-10-14 03:02:44,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 03:02:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:44,906 INFO L255 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 03:02:44,910 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:02:44,975 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-14 03:02:44,975 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:02:44,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373335137] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:02:44,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:02:44,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-14 03:02:44,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321687142] [2024-10-14 03:02:44,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:02:44,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:02:44,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:44,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:02:44,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:02:44,980 INFO L87 Difference]: Start difference. First operand 381 states and 586 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 03:02:45,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:02:45,061 INFO L93 Difference]: Finished difference Result 757 states and 1166 transitions. [2024-10-14 03:02:45,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:02:45,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 121 [2024-10-14 03:02:45,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:02:45,064 INFO L225 Difference]: With dead ends: 757 [2024-10-14 03:02:45,064 INFO L226 Difference]: Without dead ends: 383 [2024-10-14 03:02:45,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:02:45,067 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 2 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1905 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:02:45,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1905 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:02:45,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-10-14 03:02:45,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2024-10-14 03:02:45,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 289 states have (on average 1.5570934256055364) internal successors, (450), 293 states have internal predecessors, (450), 69 states have call successors, (69), 23 states have call predecessors, (69), 24 states have return successors, (70), 68 states have call predecessors, (70), 68 states have call successors, (70) [2024-10-14 03:02:45,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 589 transitions. [2024-10-14 03:02:45,089 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 589 transitions. Word has length 121 [2024-10-14 03:02:45,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:02:45,092 INFO L471 AbstractCegarLoop]: Abstraction has 383 states and 589 transitions. [2024-10-14 03:02:45,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 03:02:45,092 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 589 transitions. [2024-10-14 03:02:45,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-14 03:02:45,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:45,095 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:45,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-14 03:02:45,296 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 [2024-10-14 03:02:45,296 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:45,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:45,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1448072128, now seen corresponding path program 1 times [2024-10-14 03:02:45,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:45,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127940859] [2024-10-14 03:02:45,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:45,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:45,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:45,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:02:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-14 03:02:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 03:02:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-14 03:02:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 03:02:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 03:02:45,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 03:02:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 03:02:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 03:02:45,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 03:02:45,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 03:02:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 03:02:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,528 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-14 03:02:45,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:45,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127940859] [2024-10-14 03:02:45,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127940859] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:02:45,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732055660] [2024-10-14 03:02:45,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:45,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:02:45,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:02:45,531 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) [2024-10-14 03:02:45,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 03:02:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:45,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 03:02:45,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:02:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-14 03:02:45,796 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:02:45,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732055660] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:02:45,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:02:45,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-14 03:02:45,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907506213] [2024-10-14 03:02:45,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:02:45,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:02:45,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:45,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:02:45,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 03:02:45,798 INFO L87 Difference]: Start difference. First operand 383 states and 589 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 03:02:45,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:02:45,871 INFO L93 Difference]: Finished difference Result 759 states and 1171 transitions. [2024-10-14 03:02:45,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:02:45,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 122 [2024-10-14 03:02:45,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:02:45,874 INFO L225 Difference]: With dead ends: 759 [2024-10-14 03:02:45,874 INFO L226 Difference]: Without dead ends: 385 [2024-10-14 03:02:45,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-14 03:02:45,876 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 2 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1891 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:02:45,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1891 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:02:45,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-10-14 03:02:45,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2024-10-14 03:02:45,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 290 states have (on average 1.5551724137931036) internal successors, (451), 295 states have internal predecessors, (451), 69 states have call successors, (69), 23 states have call predecessors, (69), 25 states have return successors, (75), 68 states have call predecessors, (75), 68 states have call successors, (75) [2024-10-14 03:02:45,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 595 transitions. [2024-10-14 03:02:45,887 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 595 transitions. Word has length 122 [2024-10-14 03:02:45,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:02:45,887 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 595 transitions. [2024-10-14 03:02:45,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 03:02:45,887 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 595 transitions. [2024-10-14 03:02:45,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-14 03:02:45,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:45,889 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:45,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-14 03:02:46,089 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 [2024-10-14 03:02:46,090 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:46,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:46,090 INFO L85 PathProgramCache]: Analyzing trace with hash 565152126, now seen corresponding path program 1 times [2024-10-14 03:02:46,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:46,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047397013] [2024-10-14 03:02:46,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:46,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:46,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:02:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:02:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-14 03:02:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 03:02:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 03:02:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 03:02:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 03:02:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 03:02:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 03:02:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 03:02:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 03:02:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 03:02:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:46,251 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-14 03:02:46,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:46,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047397013] [2024-10-14 03:02:46,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047397013] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:02:46,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:02:46,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 03:02:46,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042859899] [2024-10-14 03:02:46,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:02:46,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:02:46,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:46,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:02:46,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:02:46,253 INFO L87 Difference]: Start difference. First operand 385 states and 595 transitions. Second operand has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 03:02:47,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:02:47,849 INFO L93 Difference]: Finished difference Result 892 states and 1391 transitions. [2024-10-14 03:02:47,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 03:02:47,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 123 [2024-10-14 03:02:47,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:02:47,853 INFO L225 Difference]: With dead ends: 892 [2024-10-14 03:02:47,853 INFO L226 Difference]: Without dead ends: 526 [2024-10-14 03:02:47,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 03:02:47,856 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1160 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2480 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 2480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:02:47,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 968 Invalid, 2892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 2480 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 03:02:47,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-10-14 03:02:47,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 385. [2024-10-14 03:02:47,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 290 states have (on average 1.5551724137931036) internal successors, (451), 295 states have internal predecessors, (451), 69 states have call successors, (69), 23 states have call predecessors, (69), 25 states have return successors, (74), 68 states have call predecessors, (74), 68 states have call successors, (74) [2024-10-14 03:02:47,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 594 transitions. [2024-10-14 03:02:47,884 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 594 transitions. Word has length 123 [2024-10-14 03:02:47,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:02:47,884 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 594 transitions. [2024-10-14 03:02:47,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.0) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 03:02:47,884 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 594 transitions. [2024-10-14 03:02:47,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-14 03:02:47,886 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:47,886 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:47,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:02:47,887 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:47,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:47,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1990744649, now seen corresponding path program 2 times [2024-10-14 03:02:47,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:47,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165783180] [2024-10-14 03:02:47,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:47,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:47,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:48,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:02:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:02:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 03:02:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 03:02:48,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 03:02:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 03:02:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 03:02:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 03:02:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 03:02:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 03:02:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 03:02:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 03:02:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:48,053 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-14 03:02:48,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:48,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165783180] [2024-10-14 03:02:48,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165783180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:02:48,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:02:48,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 03:02:48,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679063216] [2024-10-14 03:02:48,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:02:48,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:02:48,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:48,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:02:48,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:02:48,054 INFO L87 Difference]: Start difference. First operand 385 states and 594 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 03:02:49,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:02:49,717 INFO L93 Difference]: Finished difference Result 894 states and 1394 transitions. [2024-10-14 03:02:49,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 03:02:49,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 124 [2024-10-14 03:02:49,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:02:49,720 INFO L225 Difference]: With dead ends: 894 [2024-10-14 03:02:49,721 INFO L226 Difference]: Without dead ends: 528 [2024-10-14 03:02:49,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-14 03:02:49,722 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1165 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2491 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 2491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 03:02:49,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 968 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 2491 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 03:02:49,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-10-14 03:02:49,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 387. [2024-10-14 03:02:49,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 291 states have (on average 1.5532646048109966) internal successors, (452), 297 states have internal predecessors, (452), 69 states have call successors, (69), 23 states have call predecessors, (69), 26 states have return successors, (76), 68 states have call predecessors, (76), 68 states have call successors, (76) [2024-10-14 03:02:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 597 transitions. [2024-10-14 03:02:49,744 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 597 transitions. Word has length 124 [2024-10-14 03:02:49,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:02:49,744 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 597 transitions. [2024-10-14 03:02:49,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 03:02:49,745 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 597 transitions. [2024-10-14 03:02:49,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-14 03:02:49,746 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:49,746 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:49,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:02:49,747 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:49,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:49,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1827938525, now seen corresponding path program 1 times [2024-10-14 03:02:49,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:49,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245923893] [2024-10-14 03:02:49,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:49,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:02:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:02:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:02:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 03:02:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 03:02:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 03:02:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 03:02:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 03:02:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 03:02:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 03:02:49,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 03:02:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 03:02:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:49,949 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-14 03:02:49,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:49,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245923893] [2024-10-14 03:02:49,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245923893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:02:49,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:02:49,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:02:49,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289541665] [2024-10-14 03:02:49,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:02:49,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 03:02:49,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:49,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 03:02:49,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:02:49,951 INFO L87 Difference]: Start difference. First operand 387 states and 597 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 03:02:51,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:02:51,967 INFO L93 Difference]: Finished difference Result 892 states and 1389 transitions. [2024-10-14 03:02:51,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:02:51,968 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 125 [2024-10-14 03:02:51,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:02:51,971 INFO L225 Difference]: With dead ends: 892 [2024-10-14 03:02:51,971 INFO L226 Difference]: Without dead ends: 528 [2024-10-14 03:02:51,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-14 03:02:51,973 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 1191 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 3979 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 4423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 3979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:02:51,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 1343 Invalid, 4423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [444 Valid, 3979 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-14 03:02:51,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-10-14 03:02:51,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 387. [2024-10-14 03:02:51,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 291 states have (on average 1.5532646048109966) internal successors, (452), 297 states have internal predecessors, (452), 69 states have call successors, (69), 23 states have call predecessors, (69), 26 states have return successors, (75), 68 states have call predecessors, (75), 68 states have call successors, (75) [2024-10-14 03:02:52,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 596 transitions. [2024-10-14 03:02:52,001 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 596 transitions. Word has length 125 [2024-10-14 03:02:52,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:02:52,002 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 596 transitions. [2024-10-14 03:02:52,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 03:02:52,002 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 596 transitions. [2024-10-14 03:02:52,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-10-14 03:02:52,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:52,003 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:52,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:02:52,004 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:52,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:52,004 INFO L85 PathProgramCache]: Analyzing trace with hash -626909401, now seen corresponding path program 2 times [2024-10-14 03:02:52,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:52,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953291702] [2024-10-14 03:02:52,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:52,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:02:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:02:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:02:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-14 03:02:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 03:02:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 03:02:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 03:02:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 03:02:52,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 03:02:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 03:02:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 03:02:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 03:02:52,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:52,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-10-14 03:02:52,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:52,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953291702] [2024-10-14 03:02:52,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953291702] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:02:52,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:02:52,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 03:02:52,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621240025] [2024-10-14 03:02:52,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:02:52,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 03:02:52,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:52,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 03:02:52,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-14 03:02:52,199 INFO L87 Difference]: Start difference. First operand 387 states and 596 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 03:02:54,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:02:54,098 INFO L93 Difference]: Finished difference Result 894 states and 1395 transitions. [2024-10-14 03:02:54,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:02:54,099 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 126 [2024-10-14 03:02:54,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:02:54,102 INFO L225 Difference]: With dead ends: 894 [2024-10-14 03:02:54,102 INFO L226 Difference]: Without dead ends: 530 [2024-10-14 03:02:54,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-14 03:02:54,104 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 1138 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 4168 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 4598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 4168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 03:02:54,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 1343 Invalid, 4598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 4168 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 03:02:54,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-10-14 03:02:54,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 389. [2024-10-14 03:02:54,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 292 states have (on average 1.5513698630136987) internal successors, (453), 299 states have internal predecessors, (453), 69 states have call successors, (69), 23 states have call predecessors, (69), 27 states have return successors, (80), 68 states have call predecessors, (80), 68 states have call successors, (80) [2024-10-14 03:02:54,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 602 transitions. [2024-10-14 03:02:54,126 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 602 transitions. Word has length 126 [2024-10-14 03:02:54,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:02:54,126 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 602 transitions. [2024-10-14 03:02:54,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 8 states have internal predecessors, (78), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2024-10-14 03:02:54,127 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 602 transitions. [2024-10-14 03:02:54,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 03:02:54,128 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:54,128 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:54,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:02:54,128 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:54,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:54,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1954195350, now seen corresponding path program 1 times [2024-10-14 03:02:54,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:54,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810194010] [2024-10-14 03:02:54,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:54,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:54,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:02:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:02:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:02:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 03:02:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 03:02:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 03:02:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 03:02:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 03:02:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 03:02:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 03:02:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 03:02:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 03:02:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:54,253 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-14 03:02:54,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:54,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810194010] [2024-10-14 03:02:54,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810194010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:02:54,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:02:54,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 03:02:54,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957232878] [2024-10-14 03:02:54,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:02:54,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 03:02:54,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:54,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 03:02:54,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:02:54,255 INFO L87 Difference]: Start difference. First operand 389 states and 602 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 03:02:55,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:02:55,652 INFO L93 Difference]: Finished difference Result 896 states and 1398 transitions. [2024-10-14 03:02:55,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 03:02:55,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 127 [2024-10-14 03:02:55,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:02:55,655 INFO L225 Difference]: With dead ends: 896 [2024-10-14 03:02:55,655 INFO L226 Difference]: Without dead ends: 530 [2024-10-14 03:02:55,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-10-14 03:02:55,657 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 1112 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1113 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 2990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:02:55,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1113 Valid, 960 Invalid, 2990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 2578 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 03:02:55,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-10-14 03:02:55,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 389. [2024-10-14 03:02:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 292 states have (on average 1.5513698630136987) internal successors, (453), 299 states have internal predecessors, (453), 69 states have call successors, (69), 23 states have call predecessors, (69), 27 states have return successors, (80), 68 states have call predecessors, (80), 68 states have call successors, (80) [2024-10-14 03:02:55,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 602 transitions. [2024-10-14 03:02:55,680 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 602 transitions. Word has length 127 [2024-10-14 03:02:55,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:02:55,680 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 602 transitions. [2024-10-14 03:02:55,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (18), 6 states have call predecessors, (18), 2 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-10-14 03:02:55,680 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 602 transitions. [2024-10-14 03:02:55,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-10-14 03:02:55,682 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:55,682 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:55,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 03:02:55,682 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:55,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:55,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1367919128, now seen corresponding path program 1 times [2024-10-14 03:02:55,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:55,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559016447] [2024-10-14 03:02:55,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:55,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:55,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:02:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:02:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:02:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-14 03:02:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 03:02:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 03:02:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 03:02:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 03:02:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 03:02:55,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 03:02:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 03:02:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 03:02:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:55,792 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:02:55,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:55,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559016447] [2024-10-14 03:02:55,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559016447] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:02:55,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213975581] [2024-10-14 03:02:55,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:55,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:02:55,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:02:55,794 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) [2024-10-14 03:02:55,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 03:02:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:56,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 03:02:56,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:02:56,078 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:02:56,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:02:56,169 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:02:56,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213975581] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:02:56,170 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:02:56,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-10-14 03:02:56,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554836982] [2024-10-14 03:02:56,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:02:56,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 03:02:56,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:56,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 03:02:56,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-14 03:02:56,171 INFO L87 Difference]: Start difference. First operand 389 states and 602 transitions. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 7 states have internal predecessors, (113), 2 states have call successors, (37), 6 states have call predecessors, (37), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-14 03:02:57,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:02:57,653 INFO L93 Difference]: Finished difference Result 1047 states and 1706 transitions. [2024-10-14 03:02:57,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 03:02:57,654 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 7 states have internal predecessors, (113), 2 states have call successors, (37), 6 states have call predecessors, (37), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 127 [2024-10-14 03:02:57,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:02:57,658 INFO L225 Difference]: With dead ends: 1047 [2024-10-14 03:02:57,658 INFO L226 Difference]: Without dead ends: 860 [2024-10-14 03:02:57,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-10-14 03:02:57,660 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 1628 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 612 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 1261 SdHoareTripleChecker+Invalid, 3083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 612 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:02:57,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 1261 Invalid, 3083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [612 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 03:02:57,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-10-14 03:02:57,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 704. [2024-10-14 03:02:57,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 543 states have (on average 1.6169429097605894) internal successors, (878), 550 states have internal predecessors, (878), 133 states have call successors, (133), 23 states have call predecessors, (133), 27 states have return successors, (154), 132 states have call predecessors, (154), 132 states have call successors, (154) [2024-10-14 03:02:57,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 1165 transitions. [2024-10-14 03:02:57,698 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 1165 transitions. Word has length 127 [2024-10-14 03:02:57,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:02:57,698 INFO L471 AbstractCegarLoop]: Abstraction has 704 states and 1165 transitions. [2024-10-14 03:02:57,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 7 states have internal predecessors, (113), 2 states have call successors, (37), 6 states have call predecessors, (37), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-14 03:02:57,699 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 1165 transitions. [2024-10-14 03:02:57,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-14 03:02:57,701 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:57,701 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:57,715 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-14 03:02:57,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:02:57,902 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:57,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:57,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1167466043, now seen corresponding path program 1 times [2024-10-14 03:02:57,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:57,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198092004] [2024-10-14 03:02:57,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:57,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:57,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:57,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:57,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:57,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:57,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:02:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:57,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:02:57,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:57,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:02:57,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:57,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 03:02:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:57,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 03:02:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:57,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 03:02:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:58,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 03:02:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:58,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 03:02:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:58,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-14 03:02:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:58,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 03:02:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:58,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 03:02:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:58,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 03:02:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:58,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:58,026 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:02:58,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:58,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198092004] [2024-10-14 03:02:58,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198092004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:02:58,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:02:58,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:02:58,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684468751] [2024-10-14 03:02:58,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:02:58,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:02:58,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:58,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:02:58,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:02:58,027 INFO L87 Difference]: Start difference. First operand 704 states and 1165 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:02:59,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:02:59,121 INFO L93 Difference]: Finished difference Result 1806 states and 3055 transitions. [2024-10-14 03:02:59,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:02:59,122 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2024-10-14 03:02:59,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:02:59,126 INFO L225 Difference]: With dead ends: 1806 [2024-10-14 03:02:59,127 INFO L226 Difference]: Without dead ends: 1162 [2024-10-14 03:02:59,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:02:59,129 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1236 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:02:59,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1251 Valid, 735 Invalid, 1907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:02:59,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-10-14 03:02:59,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1016. [2024-10-14 03:02:59,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 791 states have (on average 1.6308470290771175) internal successors, (1290), 798 states have internal predecessors, (1290), 197 states have call successors, (197), 23 states have call predecessors, (197), 27 states have return successors, (228), 196 states have call predecessors, (228), 196 states have call successors, (228) [2024-10-14 03:02:59,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 1715 transitions. [2024-10-14 03:02:59,162 INFO L78 Accepts]: Start accepts. Automaton has 1016 states and 1715 transitions. Word has length 133 [2024-10-14 03:02:59,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:02:59,163 INFO L471 AbstractCegarLoop]: Abstraction has 1016 states and 1715 transitions. [2024-10-14 03:02:59,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:02:59,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1016 states and 1715 transitions. [2024-10-14 03:02:59,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-14 03:02:59,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:02:59,166 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:02:59,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 03:02:59,167 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:02:59,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:02:59,167 INFO L85 PathProgramCache]: Analyzing trace with hash -90831061, now seen corresponding path program 1 times [2024-10-14 03:02:59,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:02:59,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383296461] [2024-10-14 03:02:59,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:02:59,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:02:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:02:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:02:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:02:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:02:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:02:59,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:02:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 03:02:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 03:02:59,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 03:02:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 03:02:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 03:02:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-14 03:02:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 03:02:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 03:02:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 03:02:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:02:59,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:02:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:02:59,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:02:59,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383296461] [2024-10-14 03:02:59,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383296461] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:02:59,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:02:59,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:02:59,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2898387] [2024-10-14 03:02:59,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:02:59,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:02:59,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:02:59,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:02:59,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:02:59,249 INFO L87 Difference]: Start difference. First operand 1016 states and 1715 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:00,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:03:00,278 INFO L93 Difference]: Finished difference Result 2555 states and 4373 transitions. [2024-10-14 03:03:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:03:00,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 134 [2024-10-14 03:03:00,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:03:00,286 INFO L225 Difference]: With dead ends: 2555 [2024-10-14 03:03:00,286 INFO L226 Difference]: Without dead ends: 1649 [2024-10-14 03:03:00,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:03:00,289 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1268 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 491 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:03:00,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 710 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [491 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:03:00,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2024-10-14 03:03:00,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1503. [2024-10-14 03:03:00,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 1183 states have (on average 1.639898562975486) internal successors, (1940), 1190 states have internal predecessors, (1940), 292 states have call successors, (292), 23 states have call predecessors, (292), 27 states have return successors, (323), 291 states have call predecessors, (323), 291 states have call successors, (323) [2024-10-14 03:03:00,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 2555 transitions. [2024-10-14 03:03:00,338 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 2555 transitions. Word has length 134 [2024-10-14 03:03:00,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:03:00,338 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 2555 transitions. [2024-10-14 03:03:00,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:00,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 2555 transitions. [2024-10-14 03:03:00,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-14 03:03:00,344 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:03:00,344 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:03:00,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 03:03:00,345 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:03:00,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:03:00,345 INFO L85 PathProgramCache]: Analyzing trace with hash 477202151, now seen corresponding path program 1 times [2024-10-14 03:03:00,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:03:00,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100333271] [2024-10-14 03:03:00,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:03:00,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:03:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:03:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:03:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:03:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:03:00,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:03:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:03:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-14 03:03:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 03:03:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 03:03:00,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 03:03:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 03:03:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 03:03:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 03:03:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 03:03:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 03:03:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:03:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:00,436 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:03:00,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:03:00,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100333271] [2024-10-14 03:03:00,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100333271] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:03:00,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:03:00,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:03:00,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125443431] [2024-10-14 03:03:00,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:03:00,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:03:00,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:03:00,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:03:00,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:03:00,438 INFO L87 Difference]: Start difference. First operand 1503 states and 2555 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:01,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:03:01,462 INFO L93 Difference]: Finished difference Result 3657 states and 6332 transitions. [2024-10-14 03:03:01,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:03:01,463 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2024-10-14 03:03:01,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:03:01,473 INFO L225 Difference]: With dead ends: 3657 [2024-10-14 03:03:01,473 INFO L226 Difference]: Without dead ends: 2384 [2024-10-14 03:03:01,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:03:01,477 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1252 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:03:01,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 707 Invalid, 1880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:03:01,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2024-10-14 03:03:01,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2238. [2024-10-14 03:03:01,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2238 states, 1795 states have (on average 1.6473537604456825) internal successors, (2957), 1802 states have internal predecessors, (2957), 415 states have call successors, (415), 23 states have call predecessors, (415), 27 states have return successors, (462), 414 states have call predecessors, (462), 414 states have call successors, (462) [2024-10-14 03:03:01,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2238 states to 2238 states and 3834 transitions. [2024-10-14 03:03:01,549 INFO L78 Accepts]: Start accepts. Automaton has 2238 states and 3834 transitions. Word has length 135 [2024-10-14 03:03:01,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:03:01,549 INFO L471 AbstractCegarLoop]: Abstraction has 2238 states and 3834 transitions. [2024-10-14 03:03:01,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:01,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2238 states and 3834 transitions. [2024-10-14 03:03:01,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-14 03:03:01,557 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:03:01,558 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:03:01,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 03:03:01,558 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:03:01,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:03:01,558 INFO L85 PathProgramCache]: Analyzing trace with hash 515291788, now seen corresponding path program 1 times [2024-10-14 03:03:01,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:03:01,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043579136] [2024-10-14 03:03:01,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:03:01,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:03:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:03:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:03:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:03:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:03:01,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:03:01,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:03:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 03:03:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 03:03:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 03:03:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 03:03:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 03:03:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 03:03:01,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 03:03:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 03:03:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-14 03:03:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:03:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:01,668 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:03:01,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:03:01,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043579136] [2024-10-14 03:03:01,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043579136] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:03:01,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:03:01,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:03:01,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400008529] [2024-10-14 03:03:01,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:03:01,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:03:01,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:03:01,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:03:01,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:03:01,670 INFO L87 Difference]: Start difference. First operand 2238 states and 3834 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:02,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:03:02,701 INFO L93 Difference]: Finished difference Result 5367 states and 9382 transitions. [2024-10-14 03:03:02,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:03:02,701 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 136 [2024-10-14 03:03:02,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:03:02,716 INFO L225 Difference]: With dead ends: 5367 [2024-10-14 03:03:02,716 INFO L226 Difference]: Without dead ends: 3556 [2024-10-14 03:03:02,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:03:02,721 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 1289 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:03:02,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 713 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 03:03:02,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3556 states. [2024-10-14 03:03:02,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3556 to 3410. [2024-10-14 03:03:02,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 2788 states have (on average 1.6524390243902438) internal successors, (4607), 2795 states have internal predecessors, (4607), 594 states have call successors, (594), 23 states have call predecessors, (594), 27 states have return successors, (667), 593 states have call predecessors, (667), 593 states have call successors, (667) [2024-10-14 03:03:02,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 5868 transitions. [2024-10-14 03:03:02,872 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 5868 transitions. Word has length 136 [2024-10-14 03:03:02,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:03:02,872 INFO L471 AbstractCegarLoop]: Abstraction has 3410 states and 5868 transitions. [2024-10-14 03:03:02,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:02,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 5868 transitions. [2024-10-14 03:03:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-10-14 03:03:02,883 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:03:02,883 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:03:02,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 03:03:02,884 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:03:02,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:03:02,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1566431907, now seen corresponding path program 1 times [2024-10-14 03:03:02,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:03:02,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753322292] [2024-10-14 03:03:02,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:03:02,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:03:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:03:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:03:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:03:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:03:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:03:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:03:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-14 03:03:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 03:03:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 03:03:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 03:03:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 03:03:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-14 03:03:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 03:03:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 03:03:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 03:03:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:03:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:02,985 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:03:02,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:03:02,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753322292] [2024-10-14 03:03:02,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753322292] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:03:02,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:03:02,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:03:02,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577058069] [2024-10-14 03:03:02,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:03:02,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:03:02,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:03:02,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:03:02,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:03:02,986 INFO L87 Difference]: Start difference. First operand 3410 states and 5868 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:04,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:03:04,122 INFO L93 Difference]: Finished difference Result 8222 states and 14436 transitions. [2024-10-14 03:03:04,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:03:04,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2024-10-14 03:03:04,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:03:04,145 INFO L225 Difference]: With dead ends: 8222 [2024-10-14 03:03:04,146 INFO L226 Difference]: Without dead ends: 5526 [2024-10-14 03:03:04,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:03:04,153 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1252 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 751 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:03:04,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 751 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:03:04,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5526 states. [2024-10-14 03:03:04,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5526 to 5380. [2024-10-14 03:03:04,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5380 states, 4382 states have (on average 1.642628936558649) internal successors, (7198), 4389 states have internal predecessors, (7198), 970 states have call successors, (970), 23 states have call predecessors, (970), 27 states have return successors, (1087), 969 states have call predecessors, (1087), 969 states have call successors, (1087) [2024-10-14 03:03:04,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5380 states to 5380 states and 9255 transitions. [2024-10-14 03:03:04,349 INFO L78 Accepts]: Start accepts. Automaton has 5380 states and 9255 transitions. Word has length 137 [2024-10-14 03:03:04,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:03:04,349 INFO L471 AbstractCegarLoop]: Abstraction has 5380 states and 9255 transitions. [2024-10-14 03:03:04,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:04,349 INFO L276 IsEmpty]: Start isEmpty. Operand 5380 states and 9255 transitions. [2024-10-14 03:03:04,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-10-14 03:03:04,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:03:04,364 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:03:04,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 03:03:04,364 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:03:04,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:03:04,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1043428656, now seen corresponding path program 1 times [2024-10-14 03:03:04,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:03:04,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819855425] [2024-10-14 03:03:04,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:03:04,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:03:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:03:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:03:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:03:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:03:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:03:04,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:03:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 03:03:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 03:03:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 03:03:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 03:03:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-14 03:03:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-14 03:03:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-14 03:03:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-14 03:03:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 03:03:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:03:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:04,443 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:03:04,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:03:04,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819855425] [2024-10-14 03:03:04,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819855425] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:03:04,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:03:04,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:03:04,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807135805] [2024-10-14 03:03:04,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:03:04,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:03:04,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:03:04,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:03:04,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:03:04,445 INFO L87 Difference]: Start difference. First operand 5380 states and 9255 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:05,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:03:05,560 INFO L93 Difference]: Finished difference Result 13359 states and 23457 transitions. [2024-10-14 03:03:05,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:03:05,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2024-10-14 03:03:05,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:03:05,598 INFO L225 Difference]: With dead ends: 13359 [2024-10-14 03:03:05,598 INFO L226 Difference]: Without dead ends: 9059 [2024-10-14 03:03:05,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:03:05,610 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1229 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:03:05,610 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 715 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:03:05,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9059 states. [2024-10-14 03:03:06,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9059 to 8913. [2024-10-14 03:03:06,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8913 states, 7309 states have (on average 1.6409905595840744) internal successors, (11994), 7316 states have internal predecessors, (11994), 1576 states have call successors, (1576), 23 states have call predecessors, (1576), 27 states have return successors, (1771), 1575 states have call predecessors, (1771), 1575 states have call successors, (1771) [2024-10-14 03:03:06,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8913 states to 8913 states and 15341 transitions. [2024-10-14 03:03:06,055 INFO L78 Accepts]: Start accepts. Automaton has 8913 states and 15341 transitions. Word has length 138 [2024-10-14 03:03:06,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:03:06,056 INFO L471 AbstractCegarLoop]: Abstraction has 8913 states and 15341 transitions. [2024-10-14 03:03:06,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:06,056 INFO L276 IsEmpty]: Start isEmpty. Operand 8913 states and 15341 transitions. [2024-10-14 03:03:06,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-10-14 03:03:06,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:03:06,078 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:03:06,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 03:03:06,079 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:03:06,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:03:06,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1873632239, now seen corresponding path program 1 times [2024-10-14 03:03:06,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:03:06,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450687391] [2024-10-14 03:03:06,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:03:06,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:03:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:03:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:03:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:03:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:03:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:03:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:03:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-14 03:03:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 03:03:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 03:03:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 03:03:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-14 03:03:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-14 03:03:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-14 03:03:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 03:03:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-10-14 03:03:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:03:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:03:06,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:03:06,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450687391] [2024-10-14 03:03:06,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450687391] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:03:06,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:03:06,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:03:06,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106588995] [2024-10-14 03:03:06,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:03:06,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:03:06,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:03:06,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:03:06,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:03:06,191 INFO L87 Difference]: Start difference. First operand 8913 states and 15341 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:07,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:03:07,437 INFO L93 Difference]: Finished difference Result 23131 states and 40591 transitions. [2024-10-14 03:03:07,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:03:07,437 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2024-10-14 03:03:07,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:03:07,487 INFO L225 Difference]: With dead ends: 23131 [2024-10-14 03:03:07,487 INFO L226 Difference]: Without dead ends: 15731 [2024-10-14 03:03:07,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:03:07,511 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1261 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 495 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 495 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:03:07,511 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1276 Valid, 760 Invalid, 1890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [495 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:03:07,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15731 states. [2024-10-14 03:03:07,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15731 to 15585. [2024-10-14 03:03:07,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15585 states, 12778 states have (on average 1.6321020503991235) internal successors, (20855), 12785 states have internal predecessors, (20855), 2779 states have call successors, (2779), 23 states have call predecessors, (2779), 27 states have return successors, (3118), 2778 states have call predecessors, (3118), 2778 states have call successors, (3118) [2024-10-14 03:03:08,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15585 states to 15585 states and 26752 transitions. [2024-10-14 03:03:08,038 INFO L78 Accepts]: Start accepts. Automaton has 15585 states and 26752 transitions. Word has length 139 [2024-10-14 03:03:08,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:03:08,039 INFO L471 AbstractCegarLoop]: Abstraction has 15585 states and 26752 transitions. [2024-10-14 03:03:08,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:08,039 INFO L276 IsEmpty]: Start isEmpty. Operand 15585 states and 26752 transitions. [2024-10-14 03:03:08,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-10-14 03:03:08,069 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:03:08,069 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:03:08,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 03:03:08,069 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:03:08,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:03:08,070 INFO L85 PathProgramCache]: Analyzing trace with hash 867534673, now seen corresponding path program 1 times [2024-10-14 03:03:08,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:03:08,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878269827] [2024-10-14 03:03:08,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:03:08,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:03:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:03:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:03:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:03:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:03:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:03:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:03:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 03:03:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 03:03:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-14 03:03:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 03:03:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 03:03:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 03:03:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 03:03:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-10-14 03:03:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-10-14 03:03:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:03:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:08,152 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:03:08,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:03:08,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878269827] [2024-10-14 03:03:08,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878269827] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:03:08,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:03:08,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:03:08,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704824786] [2024-10-14 03:03:08,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:03:08,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:03:08,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:03:08,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:03:08,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:03:08,155 INFO L87 Difference]: Start difference. First operand 15585 states and 26752 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:09,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:03:09,898 INFO L93 Difference]: Finished difference Result 41298 states and 72391 transitions. [2024-10-14 03:03:09,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:03:09,899 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2024-10-14 03:03:09,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:03:09,981 INFO L225 Difference]: With dead ends: 41298 [2024-10-14 03:03:09,982 INFO L226 Difference]: Without dead ends: 27846 [2024-10-14 03:03:10,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:03:10,009 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1294 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-14 03:03:10,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 708 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-14 03:03:10,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27846 states. [2024-10-14 03:03:10,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27846 to 27700. [2024-10-14 03:03:10,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27700 states, 22854 states have (on average 1.6285551763367463) internal successors, (37219), 22861 states have internal predecessors, (37219), 4818 states have call successors, (4818), 23 states have call predecessors, (4818), 27 states have return successors, (5431), 4817 states have call predecessors, (5431), 4817 states have call successors, (5431) [2024-10-14 03:03:10,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27700 states to 27700 states and 47468 transitions. [2024-10-14 03:03:10,934 INFO L78 Accepts]: Start accepts. Automaton has 27700 states and 47468 transitions. Word has length 140 [2024-10-14 03:03:10,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:03:10,935 INFO L471 AbstractCegarLoop]: Abstraction has 27700 states and 47468 transitions. [2024-10-14 03:03:10,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:10,935 INFO L276 IsEmpty]: Start isEmpty. Operand 27700 states and 47468 transitions. [2024-10-14 03:03:10,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-10-14 03:03:10,971 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:03:10,971 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:03:10,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 03:03:10,972 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:03:10,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:03:10,972 INFO L85 PathProgramCache]: Analyzing trace with hash -748390925, now seen corresponding path program 1 times [2024-10-14 03:03:10,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:03:10,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793406492] [2024-10-14 03:03:10,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:03:10,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:03:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:03:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:03:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:03:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:03:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:03:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:03:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-14 03:03:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 03:03:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-14 03:03:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 03:03:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-14 03:03:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 03:03:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 03:03:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 03:03:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-10-14 03:03:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:03:11,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:11,050 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:03:11,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:03:11,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793406492] [2024-10-14 03:03:11,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793406492] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:03:11,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:03:11,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:03:11,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030928889] [2024-10-14 03:03:11,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:03:11,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:03:11,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:03:11,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:03:11,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:03:11,052 INFO L87 Difference]: Start difference. First operand 27700 states and 47468 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:13,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:03:13,339 INFO L93 Difference]: Finished difference Result 75490 states and 131580 transitions. [2024-10-14 03:03:13,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:03:13,340 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 141 [2024-10-14 03:03:13,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:03:13,543 INFO L225 Difference]: With dead ends: 75490 [2024-10-14 03:03:13,544 INFO L226 Difference]: Without dead ends: 50670 [2024-10-14 03:03:13,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:03:13,633 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1213 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:03:13,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 720 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 03:03:13,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50670 states. [2024-10-14 03:03:15,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50670 to 50524. [2024-10-14 03:03:15,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50524 states, 41963 states have (on average 1.6236446393251198) internal successors, (68133), 41970 states have internal predecessors, (68133), 8533 states have call successors, (8533), 23 states have call predecessors, (8533), 27 states have return successors, (9678), 8532 states have call predecessors, (9678), 8532 states have call successors, (9678) [2024-10-14 03:03:15,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50524 states to 50524 states and 86344 transitions. [2024-10-14 03:03:15,836 INFO L78 Accepts]: Start accepts. Automaton has 50524 states and 86344 transitions. Word has length 141 [2024-10-14 03:03:15,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:03:15,837 INFO L471 AbstractCegarLoop]: Abstraction has 50524 states and 86344 transitions. [2024-10-14 03:03:15,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:15,837 INFO L276 IsEmpty]: Start isEmpty. Operand 50524 states and 86344 transitions. [2024-10-14 03:03:15,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-10-14 03:03:15,884 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:03:15,884 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:03:15,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 03:03:15,884 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:03:15,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:03:15,885 INFO L85 PathProgramCache]: Analyzing trace with hash 499773937, now seen corresponding path program 1 times [2024-10-14 03:03:15,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:03:15,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485452227] [2024-10-14 03:03:15,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:03:15,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:03:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:03:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:03:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:03:15,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:03:15,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:03:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:03:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 03:03:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 03:03:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-14 03:03:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 03:03:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 03:03:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 03:03:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-14 03:03:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-14 03:03:15,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 03:03:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:03:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:15,960 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-10-14 03:03:15,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:03:15,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485452227] [2024-10-14 03:03:15,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485452227] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:03:15,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:03:15,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:03:15,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519048066] [2024-10-14 03:03:15,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:03:15,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:03:15,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:03:15,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:03:15,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:03:15,962 INFO L87 Difference]: Start difference. First operand 50524 states and 86344 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:18,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:03:18,615 INFO L93 Difference]: Finished difference Result 94237 states and 164743 transitions. [2024-10-14 03:03:18,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 03:03:18,615 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 142 [2024-10-14 03:03:18,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:03:19,118 INFO L225 Difference]: With dead ends: 94237 [2024-10-14 03:03:19,118 INFO L226 Difference]: Without dead ends: 94050 [2024-10-14 03:03:19,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-14 03:03:19,146 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1286 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 1356 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 1858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 1356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:03:19,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 723 Invalid, 1858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 1356 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 03:03:19,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94050 states. [2024-10-14 03:03:21,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94050 to 93904. [2024-10-14 03:03:21,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93904 states, 78544 states have (on average 1.617233652475046) internal successors, (127024), 78551 states have internal predecessors, (127024), 15332 states have call successors, (15332), 23 states have call predecessors, (15332), 27 states have return successors, (17523), 15331 states have call predecessors, (17523), 15331 states have call successors, (17523) [2024-10-14 03:03:22,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93904 states to 93904 states and 159879 transitions. [2024-10-14 03:03:22,532 INFO L78 Accepts]: Start accepts. Automaton has 93904 states and 159879 transitions. Word has length 142 [2024-10-14 03:03:22,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:03:22,532 INFO L471 AbstractCegarLoop]: Abstraction has 93904 states and 159879 transitions. [2024-10-14 03:03:22,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-10-14 03:03:22,533 INFO L276 IsEmpty]: Start isEmpty. Operand 93904 states and 159879 transitions. [2024-10-14 03:03:22,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-10-14 03:03:22,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:03:22,605 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:03:22,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 03:03:22,605 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:03:22,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:03:22,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1921148146, now seen corresponding path program 1 times [2024-10-14 03:03:22,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:03:22,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386069974] [2024-10-14 03:03:22,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:03:22,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:03:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:22,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:03:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:22,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:03:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:22,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:03:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:22,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:03:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:22,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-14 03:03:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:22,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 03:03:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:22,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-14 03:03:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:22,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 03:03:22,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:22,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 03:03:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:23,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 03:03:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:23,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-14 03:03:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:23,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-14 03:03:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:23,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-14 03:03:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:23,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-10-14 03:03:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:23,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-10-14 03:03:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:23,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:03:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:23,054 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-14 03:03:23,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:03:23,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386069974] [2024-10-14 03:03:23,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386069974] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:03:23,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239744137] [2024-10-14 03:03:23,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:03:23,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:03:23,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:03:23,057 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:03:23,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 03:03:23,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:03:23,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 03:03:23,305 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:03:23,476 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-14 03:03:23,476 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:03:23,936 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-14 03:03:23,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239744137] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:03:23,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:03:23,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2024-10-14 03:03:23,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61271387] [2024-10-14 03:03:23,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:03:23,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-14 03:03:23,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:03:23,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-14 03:03:23,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=908, Unknown=0, NotChecked=0, Total=992 [2024-10-14 03:03:23,938 INFO L87 Difference]: Start difference. First operand 93904 states and 159879 transitions. Second operand has 32 states, 30 states have (on average 7.7) internal successors, (231), 24 states have internal predecessors, (231), 9 states have call successors, (48), 12 states have call predecessors, (48), 12 states have return successors, (42), 11 states have call predecessors, (42), 9 states have call successors, (42) [2024-10-14 03:03:45,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:03:45,185 INFO L93 Difference]: Finished difference Result 375678 states and 672159 transitions. [2024-10-14 03:03:45,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2024-10-14 03:03:45,185 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 7.7) internal successors, (231), 24 states have internal predecessors, (231), 9 states have call successors, (48), 12 states have call predecessors, (48), 12 states have return successors, (42), 11 states have call predecessors, (42), 9 states have call successors, (42) Word has length 143 [2024-10-14 03:03:45,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:03:46,881 INFO L225 Difference]: With dead ends: 375678 [2024-10-14 03:03:46,881 INFO L226 Difference]: Without dead ends: 375494 [2024-10-14 03:03:47,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10208 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=3712, Invalid=25358, Unknown=0, NotChecked=0, Total=29070 [2024-10-14 03:03:47,299 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 6662 mSDsluCounter, 7406 mSDsCounter, 0 mSdLazyCounter, 26390 mSolverCounterSat, 2433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6686 SdHoareTripleChecker+Valid, 7795 SdHoareTripleChecker+Invalid, 28823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2433 IncrementalHoareTripleChecker+Valid, 26390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-10-14 03:03:47,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6686 Valid, 7795 Invalid, 28823 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2433 Valid, 26390 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2024-10-14 03:03:47,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375494 states.