./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aa31ba7b6b6c5a20100c4ed7bd6bb53a6560ae9fc8557479e094a44cc1bad058 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 02:54:30,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 02:54:30,162 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 02:54:30,165 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 02:54:30,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 02:54:30,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 02:54:30,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 02:54:30,189 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 02:54:30,189 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 02:54:30,190 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 02:54:30,190 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 02:54:30,190 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 02:54:30,190 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 02:54:30,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 02:54:30,191 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 02:54:30,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 02:54:30,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 02:54:30,192 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 02:54:30,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 02:54:30,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 02:54:30,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 02:54:30,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 02:54:30,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 02:54:30,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 02:54:30,193 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 02:54:30,194 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 02:54:30,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 02:54:30,194 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 02:54:30,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 02:54:30,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 02:54:30,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 02:54:30,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 02:54:30,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:54:30,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 02:54:30,196 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 02:54:30,196 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 02:54:30,196 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 02:54:30,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 02:54:30,197 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 02:54:30,197 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 02:54:30,197 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 02:54:30,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 02:54:30,198 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa31ba7b6b6c5a20100c4ed7bd6bb53a6560ae9fc8557479e094a44cc1bad058 [2024-10-11 02:54:30,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 02:54:30,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 02:54:30,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 02:54:30,446 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 02:54:30,447 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 02:54:30,448 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.cil.c [2024-10-11 02:54:31,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 02:54:32,036 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 02:54:32,036 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.cil.c [2024-10-11 02:54:32,058 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e18ac2d79/05915a4d25fe49e192ce6bb9c9e99fa2/FLAG1851c29ee [2024-10-11 02:54:32,071 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e18ac2d79/05915a4d25fe49e192ce6bb9c9e99fa2 [2024-10-11 02:54:32,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 02:54:32,076 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 02:54:32,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 02:54:32,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 02:54:32,083 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 02:54:32,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,086 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d7e11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32, skipping insertion in model container [2024-10-11 02:54:32,086 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,166 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 02:54:32,487 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.cil.c[36672,36685] [2024-10-11 02:54:32,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:54:32,593 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 02:54:32,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-10-11 02:54:32,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1128] [2024-10-11 02:54:32,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1494] [2024-10-11 02:54:32,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1503] [2024-10-11 02:54:32,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1521] [2024-10-11 02:54:32,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1680] [2024-10-11 02:54:32,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2082] [2024-10-11 02:54:32,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2120] [2024-10-11 02:54:32,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2484] [2024-10-11 02:54:32,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2769] [2024-10-11 02:54:32,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [2985] [2024-10-11 02:54:32,656 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec8_product31.cil.c[36672,36685] [2024-10-11 02:54:32,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:54:32,724 INFO L204 MainTranslator]: Completed translation [2024-10-11 02:54:32,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32 WrapperNode [2024-10-11 02:54:32,725 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 02:54:32,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 02:54:32,726 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 02:54:32,726 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 02:54:32,732 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,767 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,819 INFO L138 Inliner]: procedures = 132, calls = 207, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 1043 [2024-10-11 02:54:32,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 02:54:32,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 02:54:32,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 02:54:32,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 02:54:32,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,836 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,864 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]. [2024-10-11 02:54:32,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,864 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,892 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 02:54:32,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 02:54:32,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 02:54:32,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 02:54:32,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (1/1) ... [2024-10-11 02:54:32,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:54:32,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:54:32,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 02:54:32,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 02:54:33,016 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-10-11 02:54:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-10-11 02:54:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-10-11 02:54:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-10-11 02:54:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-10-11 02:54:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-10-11 02:54:33,017 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-10-11 02:54:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-10-11 02:54:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-10-11 02:54:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-10-11 02:54:33,018 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-10-11 02:54:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-10-11 02:54:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-10-11 02:54:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-10-11 02:54:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-10-11 02:54:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-10-11 02:54:33,019 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-10-11 02:54:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-10-11 02:54:33,020 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-10-11 02:54:33,021 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-10-11 02:54:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-10-11 02:54:33,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-10-11 02:54:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-10-11 02:54:33,021 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-10-11 02:54:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 02:54:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-10-11 02:54:33,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-10-11 02:54:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-10-11 02:54:33,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-10-11 02:54:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-10-11 02:54:33,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-10-11 02:54:33,022 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-10-11 02:54:33,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-10-11 02:54:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-10-11 02:54:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-10-11 02:54:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-10-11 02:54:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-10-11 02:54:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-10-11 02:54:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-10-11 02:54:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-10-11 02:54:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-10-11 02:54:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-10-11 02:54:33,023 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-10-11 02:54:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-10-11 02:54:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-10-11 02:54:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 02:54:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 02:54:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 02:54:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 02:54:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-10-11 02:54:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-10-11 02:54:33,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 02:54:33,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 02:54:33,208 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 02:54:33,211 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 02:54:34,015 INFO L? ?]: Removed 479 outVars from TransFormulas that were not future-live. [2024-10-11 02:54:34,015 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 02:54:34,080 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 02:54:34,081 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 02:54:34,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:54:34 BoogieIcfgContainer [2024-10-11 02:54:34,081 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 02:54:34,083 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 02:54:34,083 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 02:54:34,086 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 02:54:34,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:54:32" (1/3) ... [2024-10-11 02:54:34,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746f8f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:54:34, skipping insertion in model container [2024-10-11 02:54:34,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:54:32" (2/3) ... [2024-10-11 02:54:34,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746f8f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:54:34, skipping insertion in model container [2024-10-11 02:54:34,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:54:34" (3/3) ... [2024-10-11 02:54:34,088 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product31.cil.c [2024-10-11 02:54:34,103 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 02:54:34,103 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 02:54:34,174 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 02:54:34,180 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;@574fb3fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 02:54:34,182 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 02:54:34,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 338 states, 254 states have (on average 1.562992125984252) internal successors, (397), 258 states have internal predecessors, (397), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-10-11 02:54:34,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-11 02:54:34,206 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:34,207 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:34,207 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:34,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:34,214 INFO L85 PathProgramCache]: Analyzing trace with hash -504654689, now seen corresponding path program 1 times [2024-10-11 02:54:34,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:34,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787319148] [2024-10-11 02:54:34,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:34,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:54:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 02:54:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 02:54:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 02:54:34,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-11 02:54:34,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:54:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 02:54:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 02:54:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 02:54:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:54:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:34,887 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 02:54:34,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:34,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787319148] [2024-10-11 02:54:34,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787319148] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:54:34,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862251601] [2024-10-11 02:54:34,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:34,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:54:34,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:54:34,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:54:34,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 02:54:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 02:54:35,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:54:35,181 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 02:54:35,181 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:54:35,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862251601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:35,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:54:35,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-10-11 02:54:35,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878484980] [2024-10-11 02:54:35,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:35,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 02:54:35,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:35,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 02:54:35,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:54:35,223 INFO L87 Difference]: Start difference. First operand has 338 states, 254 states have (on average 1.562992125984252) internal successors, (397), 258 states have internal predecessors, (397), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:35,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:35,315 INFO L93 Difference]: Finished difference Result 531 states and 793 transitions. [2024-10-11 02:54:35,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 02:54:35,321 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 95 [2024-10-11 02:54:35,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:35,341 INFO L225 Difference]: With dead ends: 531 [2024-10-11 02:54:35,343 INFO L226 Difference]: Without dead ends: 335 [2024-10-11 02:54:35,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:54:35,354 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:35,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 494 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:54:35,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-10-11 02:54:35,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2024-10-11 02:54:35,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 252 states have (on average 1.5476190476190477) internal successors, (390), 255 states have internal predecessors, (390), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-11 02:54:35,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 507 transitions. [2024-10-11 02:54:35,427 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 507 transitions. Word has length 95 [2024-10-11 02:54:35,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:35,428 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 507 transitions. [2024-10-11 02:54:35,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:35,428 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 507 transitions. [2024-10-11 02:54:35,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-11 02:54:35,432 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:35,432 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:35,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 02:54:35,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-11 02:54:35,634 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:35,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:35,634 INFO L85 PathProgramCache]: Analyzing trace with hash -111764904, now seen corresponding path program 1 times [2024-10-11 02:54:35,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:35,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666531738] [2024-10-11 02:54:35,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:35,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:54:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 02:54:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 02:54:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-10-11 02:54:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 02:54:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:54:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 02:54:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:54:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 02:54:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:54:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-11 02:54:35,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:35,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666531738] [2024-10-11 02:54:35,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666531738] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:54:35,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299223131] [2024-10-11 02:54:35,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:35,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:54:35,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:54:35,909 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:54:35,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 02:54:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,148 INFO L255 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 02:54:36,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:54:36,191 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 02:54:36,191 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:54:36,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299223131] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:36,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:54:36,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-11 02:54:36,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731445662] [2024-10-11 02:54:36,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:36,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:54:36,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:36,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:54:36,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:54:36,198 INFO L87 Difference]: Start difference. First operand 335 states and 507 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:36,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:36,278 INFO L93 Difference]: Finished difference Result 527 states and 780 transitions. [2024-10-11 02:54:36,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:54:36,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 96 [2024-10-11 02:54:36,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:36,282 INFO L225 Difference]: With dead ends: 527 [2024-10-11 02:54:36,282 INFO L226 Difference]: Without dead ends: 337 [2024-10-11 02:54:36,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:54:36,288 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 0 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:36,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 981 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:54:36,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-10-11 02:54:36,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2024-10-11 02:54:36,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 254 states have (on average 1.5433070866141732) internal successors, (392), 257 states have internal predecessors, (392), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-10-11 02:54:36,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 509 transitions. [2024-10-11 02:54:36,328 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 509 transitions. Word has length 96 [2024-10-11 02:54:36,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:36,329 INFO L471 AbstractCegarLoop]: Abstraction has 337 states and 509 transitions. [2024-10-11 02:54:36,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:36,330 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 509 transitions. [2024-10-11 02:54:36,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-11 02:54:36,333 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:36,333 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:36,351 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 02:54:36,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:54:36,534 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:36,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:36,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1986913211, now seen corresponding path program 1 times [2024-10-11 02:54:36,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:36,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204043935] [2024-10-11 02:54:36,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:36,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:54:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 02:54:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 02:54:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 02:54:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 02:54:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:54:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 02:54:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 02:54:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 02:54:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 02:54:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,761 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 02:54:36,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:36,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204043935] [2024-10-11 02:54:36,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204043935] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:54:36,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660354078] [2024-10-11 02:54:36,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:36,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:54:36,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:54:36,764 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:54:36,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 02:54:36,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:36,985 INFO L255 TraceCheckSpWp]: Trace formula consists of 1020 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:54:36,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:54:37,006 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-11 02:54:37,006 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:54:37,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660354078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:37,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:54:37,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-10-11 02:54:37,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304329370] [2024-10-11 02:54:37,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:37,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:54:37,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:37,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:54:37,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:54:37,008 INFO L87 Difference]: Start difference. First operand 337 states and 509 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:37,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:37,056 INFO L93 Difference]: Finished difference Result 704 states and 1077 transitions. [2024-10-11 02:54:37,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:54:37,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-10-11 02:54:37,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:37,060 INFO L225 Difference]: With dead ends: 704 [2024-10-11 02:54:37,060 INFO L226 Difference]: Without dead ends: 389 [2024-10-11 02:54:37,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-11 02:54:37,062 INFO L432 NwaCegarLoop]: 503 mSDtfsCounter, 102 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 949 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 [2024-10-11 02:54:37,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 949 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:54:37,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-10-11 02:54:37,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 384. [2024-10-11 02:54:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 290 states have (on average 1.5586206896551724) internal successors, (452), 293 states have internal predecessors, (452), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-10-11 02:54:37,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 591 transitions. [2024-10-11 02:54:37,085 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 591 transitions. Word has length 101 [2024-10-11 02:54:37,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:37,085 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 591 transitions. [2024-10-11 02:54:37,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 591 transitions. [2024-10-11 02:54:37,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-11 02:54:37,087 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:37,088 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:37,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 02:54:37,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:54:37,288 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:37,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:37,289 INFO L85 PathProgramCache]: Analyzing trace with hash -546269726, now seen corresponding path program 1 times [2024-10-11 02:54:37,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:37,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049406100] [2024-10-11 02:54:37,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:37,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:37,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:37,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 02:54:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 02:54:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 02:54:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:54:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:54:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 02:54:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:54:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:54:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:54:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 02:54:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,467 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 02:54:37,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:37,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049406100] [2024-10-11 02:54:37,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049406100] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:54:37,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599717320] [2024-10-11 02:54:37,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:37,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:54:37,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:54:37,470 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:54:37,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 02:54:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:37,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-11 02:54:37,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:54:37,735 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 02:54:37,736 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:54:37,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599717320] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:37,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:54:37,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-10-11 02:54:37,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104511486] [2024-10-11 02:54:37,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:37,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:54:37,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:37,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:54:37,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:54:37,738 INFO L87 Difference]: Start difference. First operand 384 states and 591 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:54:37,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:37,826 INFO L93 Difference]: Finished difference Result 763 states and 1176 transitions. [2024-10-11 02:54:37,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:54:37,827 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2024-10-11 02:54:37,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:37,830 INFO L225 Difference]: With dead ends: 763 [2024-10-11 02:54:37,830 INFO L226 Difference]: Without dead ends: 386 [2024-10-11 02:54:37,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:54:37,834 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 2 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1921 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:37,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1921 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:54:37,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2024-10-11 02:54:37,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2024-10-11 02:54:37,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 291 states have (on average 1.556701030927835) internal successors, (453), 295 states have internal predecessors, (453), 70 states have call successors, (70), 23 states have call predecessors, (70), 24 states have return successors, (71), 69 states have call predecessors, (71), 69 states have call successors, (71) [2024-10-11 02:54:37,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 594 transitions. [2024-10-11 02:54:37,849 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 594 transitions. Word has length 102 [2024-10-11 02:54:37,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:37,850 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 594 transitions. [2024-10-11 02:54:37,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:54:37,850 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 594 transitions. [2024-10-11 02:54:37,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-11 02:54:37,852 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:37,852 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:37,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 02:54:38,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:54:38,053 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:38,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:38,053 INFO L85 PathProgramCache]: Analyzing trace with hash -757898803, now seen corresponding path program 1 times [2024-10-11 02:54:38,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:38,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263474483] [2024-10-11 02:54:38,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:38,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:38,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-11 02:54:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 02:54:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 02:54:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:54:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 02:54:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 02:54:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 02:54:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:54:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 02:54:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,278 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 02:54:38,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:38,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263474483] [2024-10-11 02:54:38,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263474483] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:54:38,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426958484] [2024-10-11 02:54:38,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:38,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:54:38,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:54:38,280 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:54:38,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 02:54:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 02:54:38,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:54:38,543 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 02:54:38,543 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:54:38,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426958484] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:38,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:54:38,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-10-11 02:54:38,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103805512] [2024-10-11 02:54:38,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:38,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 02:54:38,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:38,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 02:54:38,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:54:38,545 INFO L87 Difference]: Start difference. First operand 386 states and 594 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:54:38,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:38,628 INFO L93 Difference]: Finished difference Result 765 states and 1181 transitions. [2024-10-11 02:54:38,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 02:54:38,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 103 [2024-10-11 02:54:38,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:38,630 INFO L225 Difference]: With dead ends: 765 [2024-10-11 02:54:38,631 INFO L226 Difference]: Without dead ends: 388 [2024-10-11 02:54:38,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:54:38,633 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 2 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1907 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:38,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1907 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 02:54:38,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-10-11 02:54:38,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2024-10-11 02:54:38,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 292 states have (on average 1.5547945205479452) internal successors, (454), 297 states have internal predecessors, (454), 70 states have call successors, (70), 23 states have call predecessors, (70), 25 states have return successors, (76), 69 states have call predecessors, (76), 69 states have call successors, (76) [2024-10-11 02:54:38,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 600 transitions. [2024-10-11 02:54:38,645 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 600 transitions. Word has length 103 [2024-10-11 02:54:38,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:38,646 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 600 transitions. [2024-10-11 02:54:38,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:54:38,646 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 600 transitions. [2024-10-11 02:54:38,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-11 02:54:38,647 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:38,648 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:38,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 02:54:38,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:54:38,849 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:38,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:38,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1188198095, now seen corresponding path program 1 times [2024-10-11 02:54:38,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:38,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109147977] [2024-10-11 02:54:38,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:38,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:38,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:39,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:39,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:54:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:39,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 02:54:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:39,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:54:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:39,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:54:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:39,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 02:54:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:39,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 02:54:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:39,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 02:54:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:39,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:54:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:39,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:54:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:39,058 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 02:54:39,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:39,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109147977] [2024-10-11 02:54:39,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109147977] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:39,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:54:39,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:54:39,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012618731] [2024-10-11 02:54:39,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:39,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:54:39,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:39,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:54:39,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:54:39,062 INFO L87 Difference]: Start difference. First operand 388 states and 600 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:54:40,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:40,852 INFO L93 Difference]: Finished difference Result 901 states and 1406 transitions. [2024-10-11 02:54:40,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 02:54:40,853 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 104 [2024-10-11 02:54:40,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:40,858 INFO L225 Difference]: With dead ends: 901 [2024-10-11 02:54:40,858 INFO L226 Difference]: Without dead ends: 532 [2024-10-11 02:54:40,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:54:40,860 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1172 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2503 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 2503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:40,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1173 Valid, 968 Invalid, 2945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 2503 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 02:54:40,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2024-10-11 02:54:40,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 388. [2024-10-11 02:54:40,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 292 states have (on average 1.5547945205479452) internal successors, (454), 297 states have internal predecessors, (454), 70 states have call successors, (70), 23 states have call predecessors, (70), 25 states have return successors, (75), 69 states have call predecessors, (75), 69 states have call successors, (75) [2024-10-11 02:54:40,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 599 transitions. [2024-10-11 02:54:40,894 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 599 transitions. Word has length 104 [2024-10-11 02:54:40,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:40,895 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 599 transitions. [2024-10-11 02:54:40,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:54:40,895 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 599 transitions. [2024-10-11 02:54:40,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-10-11 02:54:40,898 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:40,898 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:40,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 02:54:40,899 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:40,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:40,899 INFO L85 PathProgramCache]: Analyzing trace with hash -809376386, now seen corresponding path program 2 times [2024-10-11 02:54:40,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:40,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842803826] [2024-10-11 02:54:40,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:40,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:40,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:54:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 02:54:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 02:54:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:54:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 02:54:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 02:54:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:54:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 02:54:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 02:54:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:41,085 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-11 02:54:41,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:41,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842803826] [2024-10-11 02:54:41,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842803826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:41,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:54:41,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:54:41,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341187539] [2024-10-11 02:54:41,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:41,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:54:41,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:41,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:54:41,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:54:41,087 INFO L87 Difference]: Start difference. First operand 388 states and 599 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:54:42,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:42,809 INFO L93 Difference]: Finished difference Result 903 states and 1409 transitions. [2024-10-11 02:54:42,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 02:54:42,810 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 105 [2024-10-11 02:54:42,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:42,813 INFO L225 Difference]: With dead ends: 903 [2024-10-11 02:54:42,813 INFO L226 Difference]: Without dead ends: 534 [2024-10-11 02:54:42,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:54:42,818 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1144 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2559 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 2989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 2559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:42,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1145 Valid, 968 Invalid, 2989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 2559 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 02:54:42,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-10-11 02:54:42,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 390. [2024-10-11 02:54:42,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 293 states have (on average 1.552901023890785) internal successors, (455), 299 states have internal predecessors, (455), 70 states have call successors, (70), 23 states have call predecessors, (70), 26 states have return successors, (77), 69 states have call predecessors, (77), 69 states have call successors, (77) [2024-10-11 02:54:42,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 602 transitions. [2024-10-11 02:54:42,850 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 602 transitions. Word has length 105 [2024-10-11 02:54:42,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:42,850 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 602 transitions. [2024-10-11 02:54:42,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (15), 6 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-10-11 02:54:42,850 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 602 transitions. [2024-10-11 02:54:42,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-11 02:54:42,852 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:42,852 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:42,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 02:54:42,852 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:42,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:42,853 INFO L85 PathProgramCache]: Analyzing trace with hash 267251820, now seen corresponding path program 1 times [2024-10-11 02:54:42,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:42,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607692575] [2024-10-11 02:54:42,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:42,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:42,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:42,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:42,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:42,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:42,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:54:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:43,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:54:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:43,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 02:54:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:43,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:54:43,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:43,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:54:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:43,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:54:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:43,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 02:54:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:43,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 02:54:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:43,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:54:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:43,063 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 02:54:43,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:43,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607692575] [2024-10-11 02:54:43,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607692575] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:43,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:54:43,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 02:54:43,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012250878] [2024-10-11 02:54:43,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:43,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 02:54:43,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:43,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 02:54:43,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:54:43,064 INFO L87 Difference]: Start difference. First operand 390 states and 602 transitions. Second operand has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:54:45,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:45,243 INFO L93 Difference]: Finished difference Result 901 states and 1404 transitions. [2024-10-11 02:54:45,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 02:54:45,244 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 106 [2024-10-11 02:54:45,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:45,247 INFO L225 Difference]: With dead ends: 901 [2024-10-11 02:54:45,247 INFO L226 Difference]: Without dead ends: 534 [2024-10-11 02:54:45,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-11 02:54:45,250 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 1151 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 4157 mSolverCounterSat, 447 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 4604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 447 IncrementalHoareTripleChecker+Valid, 4157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:45,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 1343 Invalid, 4604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [447 Valid, 4157 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 02:54:45,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-10-11 02:54:45,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 390. [2024-10-11 02:54:45,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 293 states have (on average 1.552901023890785) internal successors, (455), 299 states have internal predecessors, (455), 70 states have call successors, (70), 23 states have call predecessors, (70), 26 states have return successors, (76), 69 states have call predecessors, (76), 69 states have call successors, (76) [2024-10-11 02:54:45,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 601 transitions. [2024-10-11 02:54:45,289 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 601 transitions. Word has length 106 [2024-10-11 02:54:45,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:45,290 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 601 transitions. [2024-10-11 02:54:45,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.363636363636363) internal successors, (70), 8 states have internal predecessors, (70), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:54:45,290 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 601 transitions. [2024-10-11 02:54:45,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 02:54:45,291 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:45,291 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:45,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 02:54:45,292 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:45,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:45,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1877223126, now seen corresponding path program 2 times [2024-10-11 02:54:45,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:45,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799818231] [2024-10-11 02:54:45,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:45,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:54:45,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:54:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:54:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 02:54:45,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:54:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 02:54:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 02:54:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:54:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 02:54:45,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:45,496 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-11 02:54:45,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:45,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799818231] [2024-10-11 02:54:45,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799818231] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:45,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:54:45,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-11 02:54:45,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272843637] [2024-10-11 02:54:45,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:45,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 02:54:45,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:45,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 02:54:45,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-10-11 02:54:45,498 INFO L87 Difference]: Start difference. First operand 390 states and 601 transitions. Second operand has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:54:47,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:47,498 INFO L93 Difference]: Finished difference Result 903 states and 1410 transitions. [2024-10-11 02:54:47,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 02:54:47,498 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) Word has length 107 [2024-10-11 02:54:47,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:47,501 INFO L225 Difference]: With dead ends: 903 [2024-10-11 02:54:47,501 INFO L226 Difference]: Without dead ends: 536 [2024-10-11 02:54:47,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-10-11 02:54:47,503 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1187 mSDsluCounter, 1184 mSDsCounter, 0 mSdLazyCounter, 4121 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 4558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 4121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:47,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 1344 Invalid, 4558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 4121 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-11 02:54:47,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-10-11 02:54:47,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 392. [2024-10-11 02:54:47,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 294 states have (on average 1.5510204081632653) internal successors, (456), 301 states have internal predecessors, (456), 70 states have call successors, (70), 23 states have call predecessors, (70), 27 states have return successors, (81), 69 states have call predecessors, (81), 69 states have call successors, (81) [2024-10-11 02:54:47,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 607 transitions. [2024-10-11 02:54:47,525 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 607 transitions. Word has length 107 [2024-10-11 02:54:47,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:47,525 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 607 transitions. [2024-10-11 02:54:47,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.454545454545454) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (15), 6 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 4 states have call successors, (13) [2024-10-11 02:54:47,525 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 607 transitions. [2024-10-11 02:54:47,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-10-11 02:54:47,526 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:47,527 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:47,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 02:54:47,527 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:47,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:47,527 INFO L85 PathProgramCache]: Analyzing trace with hash 484092807, now seen corresponding path program 1 times [2024-10-11 02:54:47,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:47,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007088278] [2024-10-11 02:54:47,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:47,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:47,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:54:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:54:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:54:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 02:54:47,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:54:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:54:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 02:54:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 02:54:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 02:54:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:54:47,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:47,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007088278] [2024-10-11 02:54:47,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007088278] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:54:47,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614346404] [2024-10-11 02:54:47,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:47,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:54:47,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:54:47,660 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:54:47,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 02:54:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:47,888 INFO L255 TraceCheckSpWp]: Trace formula consists of 1031 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 02:54:47,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:54:47,912 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:54:47,914 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 02:54:48,008 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:54:48,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614346404] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 02:54:48,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 02:54:48,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-10-11 02:54:48,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451024784] [2024-10-11 02:54:48,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 02:54:48,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-11 02:54:48,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:48,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-11 02:54:48,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-11 02:54:48,013 INFO L87 Difference]: Start difference. First operand 392 states and 607 transitions. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 02:54:49,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:49,407 INFO L93 Difference]: Finished difference Result 1056 states and 1722 transitions. [2024-10-11 02:54:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 02:54:49,408 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 108 [2024-10-11 02:54:49,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:49,414 INFO L225 Difference]: With dead ends: 1056 [2024-10-11 02:54:49,414 INFO L226 Difference]: Without dead ends: 866 [2024-10-11 02:54:49,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-10-11 02:54:49,417 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 1619 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 607 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 2643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 607 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:49,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 1246 Invalid, 2643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [607 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 02:54:49,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-10-11 02:54:49,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 707. [2024-10-11 02:54:49,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 545 states have (on average 1.61651376146789) internal successors, (881), 552 states have internal predecessors, (881), 134 states have call successors, (134), 23 states have call predecessors, (134), 27 states have return successors, (155), 133 states have call predecessors, (155), 133 states have call successors, (155) [2024-10-11 02:54:49,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1170 transitions. [2024-10-11 02:54:49,457 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1170 transitions. Word has length 108 [2024-10-11 02:54:49,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:49,458 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 1170 transitions. [2024-10-11 02:54:49,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-10-11 02:54:49,459 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1170 transitions. [2024-10-11 02:54:49,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-11 02:54:49,461 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:49,461 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:49,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 02:54:49,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-11 02:54:49,667 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:49,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:49,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1388901706, now seen corresponding path program 1 times [2024-10-11 02:54:49,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:49,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032868781] [2024-10-11 02:54:49,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:49,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:49,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:49,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:54:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:54:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:54:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:54:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:54:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 02:54:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:54:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-11 02:54:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 02:54:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:49,757 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:54:49,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:49,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032868781] [2024-10-11 02:54:49,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032868781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:49,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:54:49,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:54:49,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535633579] [2024-10-11 02:54:49,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:49,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:54:49,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:49,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:54:49,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:54:49,759 INFO L87 Difference]: Start difference. First operand 707 states and 1170 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:51,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:51,019 INFO L93 Difference]: Finished difference Result 1815 states and 3071 transitions. [2024-10-11 02:54:51,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:54:51,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2024-10-11 02:54:51,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:51,027 INFO L225 Difference]: With dead ends: 1815 [2024-10-11 02:54:51,028 INFO L226 Difference]: Without dead ends: 1168 [2024-10-11 02:54:51,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:54:51,031 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 1243 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 492 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:51,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1258 Valid, 760 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [492 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-11 02:54:51,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2024-10-11 02:54:51,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1019. [2024-10-11 02:54:51,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 793 states have (on average 1.630517023959647) internal successors, (1293), 800 states have internal predecessors, (1293), 198 states have call successors, (198), 23 states have call predecessors, (198), 27 states have return successors, (229), 197 states have call predecessors, (229), 197 states have call successors, (229) [2024-10-11 02:54:51,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1720 transitions. [2024-10-11 02:54:51,079 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1720 transitions. Word has length 114 [2024-10-11 02:54:51,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:51,079 INFO L471 AbstractCegarLoop]: Abstraction has 1019 states and 1720 transitions. [2024-10-11 02:54:51,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:51,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1720 transitions. [2024-10-11 02:54:51,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-11 02:54:51,085 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:51,085 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:51,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 02:54:51,085 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:51,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:51,086 INFO L85 PathProgramCache]: Analyzing trace with hash -335228864, now seen corresponding path program 1 times [2024-10-11 02:54:51,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:51,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830440233] [2024-10-11 02:54:51,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:51,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:51,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:54:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:54:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 02:54:51,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:54:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 02:54:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 02:54:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:54:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-11 02:54:51,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 02:54:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:51,200 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:54:51,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:51,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830440233] [2024-10-11 02:54:51,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830440233] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:51,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:54:51,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:54:51,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207113583] [2024-10-11 02:54:51,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:51,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:54:51,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:51,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:54:51,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:54:51,202 INFO L87 Difference]: Start difference. First operand 1019 states and 1720 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:52,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:52,354 INFO L93 Difference]: Finished difference Result 2564 states and 4389 transitions. [2024-10-11 02:54:52,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:54:52,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2024-10-11 02:54:52,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:52,363 INFO L225 Difference]: With dead ends: 2564 [2024-10-11 02:54:52,364 INFO L226 Difference]: Without dead ends: 1655 [2024-10-11 02:54:52,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:54:52,368 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 1291 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 499 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:52,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 716 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [499 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 02:54:52,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2024-10-11 02:54:52,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1506. [2024-10-11 02:54:52,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1185 states have (on average 1.639662447257384) internal successors, (1943), 1192 states have internal predecessors, (1943), 293 states have call successors, (293), 23 states have call predecessors, (293), 27 states have return successors, (324), 292 states have call predecessors, (324), 292 states have call successors, (324) [2024-10-11 02:54:52,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2560 transitions. [2024-10-11 02:54:52,433 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2560 transitions. Word has length 115 [2024-10-11 02:54:52,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:52,433 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2560 transitions. [2024-10-11 02:54:52,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:52,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2560 transitions. [2024-10-11 02:54:52,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-11 02:54:52,439 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:52,440 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:52,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 02:54:52,440 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:52,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:52,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1449034472, now seen corresponding path program 1 times [2024-10-11 02:54:52,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:52,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381285491] [2024-10-11 02:54:52,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:52,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:52,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:52,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:54:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:54:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-11 02:54:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:54:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:54:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 02:54:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 02:54:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-11 02:54:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 02:54:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:52,536 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:54:52,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:52,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381285491] [2024-10-11 02:54:52,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381285491] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:52,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:54:52,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:54:52,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249494316] [2024-10-11 02:54:52,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:52,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:54:52,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:52,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:54:52,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:54:52,538 INFO L87 Difference]: Start difference. First operand 1506 states and 2560 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:53,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:53,691 INFO L93 Difference]: Finished difference Result 3666 states and 6348 transitions. [2024-10-11 02:54:53,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:54:53,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-10-11 02:54:53,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:53,703 INFO L225 Difference]: With dead ends: 3666 [2024-10-11 02:54:53,703 INFO L226 Difference]: Without dead ends: 2390 [2024-10-11 02:54:53,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:54:53,707 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1278 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:53,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 708 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 1394 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 02:54:53,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2024-10-11 02:54:53,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2241. [2024-10-11 02:54:53,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2241 states, 1797 states have (on average 1.6471897607122983) internal successors, (2960), 1804 states have internal predecessors, (2960), 416 states have call successors, (416), 23 states have call predecessors, (416), 27 states have return successors, (463), 415 states have call predecessors, (463), 415 states have call successors, (463) [2024-10-11 02:54:53,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2241 states to 2241 states and 3839 transitions. [2024-10-11 02:54:53,798 INFO L78 Accepts]: Start accepts. Automaton has 2241 states and 3839 transitions. Word has length 116 [2024-10-11 02:54:53,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:53,798 INFO L471 AbstractCegarLoop]: Abstraction has 2241 states and 3839 transitions. [2024-10-11 02:54:53,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:53,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2241 states and 3839 transitions. [2024-10-11 02:54:53,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-11 02:54:53,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:53,807 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:53,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 02:54:53,807 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:53,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:53,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1818180351, now seen corresponding path program 1 times [2024-10-11 02:54:53,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:53,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523244394] [2024-10-11 02:54:53,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:53,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:54:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:54:53,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 02:54:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 02:54:53,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-11 02:54:53,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-11 02:54:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 02:54:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 02:54:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 02:54:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:53,952 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:54:53,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:53,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523244394] [2024-10-11 02:54:53,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523244394] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:53,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:54:53,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:54:53,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766261435] [2024-10-11 02:54:53,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:53,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:54:53,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:53,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:54:53,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:54:53,954 INFO L87 Difference]: Start difference. First operand 2241 states and 3839 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:55,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:55,156 INFO L93 Difference]: Finished difference Result 5376 states and 9398 transitions. [2024-10-11 02:54:55,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:54:55,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2024-10-11 02:54:55,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:55,179 INFO L225 Difference]: With dead ends: 5376 [2024-10-11 02:54:55,179 INFO L226 Difference]: Without dead ends: 3562 [2024-10-11 02:54:55,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:54:55,187 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 1278 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:55,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 714 Invalid, 1897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 02:54:55,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3562 states. [2024-10-11 02:54:55,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3562 to 3413. [2024-10-11 02:54:55,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3413 states, 2790 states have (on average 1.6523297491039426) internal successors, (4610), 2797 states have internal predecessors, (4610), 595 states have call successors, (595), 23 states have call predecessors, (595), 27 states have return successors, (668), 594 states have call predecessors, (668), 594 states have call successors, (668) [2024-10-11 02:54:55,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3413 states to 3413 states and 5873 transitions. [2024-10-11 02:54:55,354 INFO L78 Accepts]: Start accepts. Automaton has 3413 states and 5873 transitions. Word has length 117 [2024-10-11 02:54:55,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:55,355 INFO L471 AbstractCegarLoop]: Abstraction has 3413 states and 5873 transitions. [2024-10-11 02:54:55,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:55,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3413 states and 5873 transitions. [2024-10-11 02:54:55,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-11 02:54:55,367 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:55,368 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:55,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-11 02:54:55,368 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:55,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:55,368 INFO L85 PathProgramCache]: Analyzing trace with hash -253320148, now seen corresponding path program 1 times [2024-10-11 02:54:55,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:55,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555264876] [2024-10-11 02:54:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:55,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:54:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:54:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 02:54:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:54:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-11 02:54:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 02:54:55,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:54:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-10-11 02:54:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 02:54:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:55,482 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:54:55,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:55,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555264876] [2024-10-11 02:54:55,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555264876] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:55,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:54:55,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:54:55,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410291381] [2024-10-11 02:54:55,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:55,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:54:55,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:55,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:54:55,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:54:55,484 INFO L87 Difference]: Start difference. First operand 3413 states and 5873 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:56,668 INFO L93 Difference]: Finished difference Result 8231 states and 14452 transitions. [2024-10-11 02:54:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:54:56,669 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2024-10-11 02:54:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:56,692 INFO L225 Difference]: With dead ends: 8231 [2024-10-11 02:54:56,692 INFO L226 Difference]: Without dead ends: 5532 [2024-10-11 02:54:56,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:54:56,698 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1262 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:56,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1277 Valid, 730 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 02:54:56,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5532 states. [2024-10-11 02:54:56,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5532 to 5383. [2024-10-11 02:54:56,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5383 states, 4384 states have (on average 1.6425638686131387) internal successors, (7201), 4391 states have internal predecessors, (7201), 971 states have call successors, (971), 23 states have call predecessors, (971), 27 states have return successors, (1088), 970 states have call predecessors, (1088), 970 states have call successors, (1088) [2024-10-11 02:54:56,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5383 states to 5383 states and 9260 transitions. [2024-10-11 02:54:56,881 INFO L78 Accepts]: Start accepts. Automaton has 5383 states and 9260 transitions. Word has length 118 [2024-10-11 02:54:56,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:56,881 INFO L471 AbstractCegarLoop]: Abstraction has 5383 states and 9260 transitions. [2024-10-11 02:54:56,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 3 states have internal predecessors, (77), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:56,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5383 states and 9260 transitions. [2024-10-11 02:54:56,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-10-11 02:54:56,895 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:56,896 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:56,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 02:54:56,896 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:56,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:56,896 INFO L85 PathProgramCache]: Analyzing trace with hash -758389317, now seen corresponding path program 1 times [2024-10-11 02:54:56,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:56,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656612699] [2024-10-11 02:54:56,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:56,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:56,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:56,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:56,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:56,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:56,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:54:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:56,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:54:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:57,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-11 02:54:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:57,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 02:54:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:57,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-11 02:54:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:57,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-11 02:54:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:57,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-10-11 02:54:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:57,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-10-11 02:54:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:57,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-11 02:54:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:57,029 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:54:57,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:57,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656612699] [2024-10-11 02:54:57,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656612699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:57,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:54:57,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:54:57,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226213522] [2024-10-11 02:54:57,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:57,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:54:57,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:57,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:54:57,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:54:57,031 INFO L87 Difference]: Start difference. First operand 5383 states and 9260 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:58,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:54:58,261 INFO L93 Difference]: Finished difference Result 13368 states and 23473 transitions. [2024-10-11 02:54:58,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:54:58,262 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2024-10-11 02:54:58,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:54:58,315 INFO L225 Difference]: With dead ends: 13368 [2024-10-11 02:54:58,315 INFO L226 Difference]: Without dead ends: 9065 [2024-10-11 02:54:58,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:54:58,326 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 1260 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 1953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:54:58,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 728 Invalid, 1953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 02:54:58,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9065 states. [2024-10-11 02:54:58,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9065 to 8916. [2024-10-11 02:54:58,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8916 states, 7311 states have (on average 1.640951990151826) internal successors, (11997), 7318 states have internal predecessors, (11997), 1577 states have call successors, (1577), 23 states have call predecessors, (1577), 27 states have return successors, (1772), 1576 states have call predecessors, (1772), 1576 states have call successors, (1772) [2024-10-11 02:54:58,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8916 states to 8916 states and 15346 transitions. [2024-10-11 02:54:58,716 INFO L78 Accepts]: Start accepts. Automaton has 8916 states and 15346 transitions. Word has length 119 [2024-10-11 02:54:58,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:54:58,720 INFO L471 AbstractCegarLoop]: Abstraction has 8916 states and 15346 transitions. [2024-10-11 02:54:58,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:54:58,720 INFO L276 IsEmpty]: Start isEmpty. Operand 8916 states and 15346 transitions. [2024-10-11 02:54:58,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-11 02:54:58,740 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:54:58,740 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:54:58,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 02:54:58,741 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:54:58,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:54:58,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1349158658, now seen corresponding path program 1 times [2024-10-11 02:54:58,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:54:58,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757816377] [2024-10-11 02:54:58,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:54:58,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:54:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:54:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:54:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:54:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:54:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:54:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:54:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-11 02:54:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-11 02:54:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 02:54:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-11 02:54:58,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-10-11 02:54:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-10-11 02:54:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-11 02:54:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:54:58,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:54:58,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:54:58,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757816377] [2024-10-11 02:54:58,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757816377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:54:58,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:54:58,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:54:58,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687212356] [2024-10-11 02:54:58,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:54:58,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:54:58,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:54:58,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:54:58,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:54:58,836 INFO L87 Difference]: Start difference. First operand 8916 states and 15346 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:55:00,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:55:00,173 INFO L93 Difference]: Finished difference Result 23140 states and 40607 transitions. [2024-10-11 02:55:00,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:55:00,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2024-10-11 02:55:00,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:55:00,229 INFO L225 Difference]: With dead ends: 23140 [2024-10-11 02:55:00,229 INFO L226 Difference]: Without dead ends: 15737 [2024-10-11 02:55:00,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:55:00,253 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 1257 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 1428 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 1428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 02:55:00,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 735 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [519 Valid, 1428 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 02:55:00,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15737 states. [2024-10-11 02:55:00,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15737 to 15588. [2024-10-11 02:55:00,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15588 states, 12780 states have (on average 1.6320813771517997) internal successors, (20858), 12787 states have internal predecessors, (20858), 2780 states have call successors, (2780), 23 states have call predecessors, (2780), 27 states have return successors, (3119), 2779 states have call predecessors, (3119), 2779 states have call successors, (3119) [2024-10-11 02:55:00,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15588 states to 15588 states and 26757 transitions. [2024-10-11 02:55:00,818 INFO L78 Accepts]: Start accepts. Automaton has 15588 states and 26757 transitions. Word has length 120 [2024-10-11 02:55:00,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:55:00,819 INFO L471 AbstractCegarLoop]: Abstraction has 15588 states and 26757 transitions. [2024-10-11 02:55:00,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:55:00,820 INFO L276 IsEmpty]: Start isEmpty. Operand 15588 states and 26757 transitions. [2024-10-11 02:55:00,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-10-11 02:55:00,844 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:55:00,844 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:55:00,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 02:55:00,845 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:55:00,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:55:00,845 INFO L85 PathProgramCache]: Analyzing trace with hash -774300838, now seen corresponding path program 1 times [2024-10-11 02:55:00,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:55:00,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402256920] [2024-10-11 02:55:00,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:55:00,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:55:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:55:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:55:00,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:55:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:55:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:55:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:55:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-11 02:55:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 02:55:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-10-11 02:55:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-11 02:55:00,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-11 02:55:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-11 02:55:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 02:55:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:55:00,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:55:00,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402256920] [2024-10-11 02:55:00,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402256920] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:55:00,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:55:00,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:55:00,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491365167] [2024-10-11 02:55:00,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:55:00,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:55:00,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:55:00,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:55:00,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:55:00,932 INFO L87 Difference]: Start difference. First operand 15588 states and 26757 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:55:02,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:55:02,735 INFO L93 Difference]: Finished difference Result 41307 states and 72407 transitions. [2024-10-11 02:55:02,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:55:02,735 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2024-10-11 02:55:02,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:55:02,851 INFO L225 Difference]: With dead ends: 41307 [2024-10-11 02:55:02,852 INFO L226 Difference]: Without dead ends: 27852 [2024-10-11 02:55:02,901 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:55:02,902 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 1305 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:55:02,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 709 Invalid, 1862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 02:55:02,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27852 states. [2024-10-11 02:55:03,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27852 to 27703. [2024-10-11 02:55:03,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27703 states, 22856 states have (on average 1.6285439271963598) internal successors, (37222), 22863 states have internal predecessors, (37222), 4819 states have call successors, (4819), 23 states have call predecessors, (4819), 27 states have return successors, (5432), 4818 states have call predecessors, (5432), 4818 states have call successors, (5432) [2024-10-11 02:55:03,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27703 states to 27703 states and 47473 transitions. [2024-10-11 02:55:03,881 INFO L78 Accepts]: Start accepts. Automaton has 27703 states and 47473 transitions. Word has length 121 [2024-10-11 02:55:03,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:55:03,882 INFO L471 AbstractCegarLoop]: Abstraction has 27703 states and 47473 transitions. [2024-10-11 02:55:03,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:55:03,882 INFO L276 IsEmpty]: Start isEmpty. Operand 27703 states and 47473 transitions. [2024-10-11 02:55:03,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-10-11 02:55:03,906 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:55:03,906 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:55:03,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 02:55:03,906 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:55:03,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:55:03,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1011879460, now seen corresponding path program 1 times [2024-10-11 02:55:03,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:55:03,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078658588] [2024-10-11 02:55:03,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:55:03,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:55:03,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:55:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:55:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:55:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:55:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:55:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:55:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 02:55:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-11 02:55:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-11 02:55:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-11 02:55:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-10-11 02:55:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-11 02:55:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-10-11 02:55:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:03,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:55:03,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:55:03,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078658588] [2024-10-11 02:55:03,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078658588] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:55:03,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:55:03,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:55:03,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224761371] [2024-10-11 02:55:03,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:55:03,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:55:03,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:55:03,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:55:03,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:55:03,999 INFO L87 Difference]: Start difference. First operand 27703 states and 47473 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:55:06,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:55:06,263 INFO L93 Difference]: Finished difference Result 75499 states and 131596 transitions. [2024-10-11 02:55:06,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:55:06,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-10-11 02:55:06,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:55:06,453 INFO L225 Difference]: With dead ends: 75499 [2024-10-11 02:55:06,453 INFO L226 Difference]: Without dead ends: 50676 [2024-10-11 02:55:06,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:55:06,523 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 1239 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:55:06,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 720 Invalid, 1939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 02:55:06,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50676 states. [2024-10-11 02:55:08,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50676 to 50527. [2024-10-11 02:55:08,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50527 states, 41965 states have (on average 1.6236387465745263) internal successors, (68136), 41972 states have internal predecessors, (68136), 8534 states have call successors, (8534), 23 states have call predecessors, (8534), 27 states have return successors, (9679), 8533 states have call predecessors, (9679), 8533 states have call successors, (9679) [2024-10-11 02:55:08,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50527 states to 50527 states and 86349 transitions. [2024-10-11 02:55:08,349 INFO L78 Accepts]: Start accepts. Automaton has 50527 states and 86349 transitions. Word has length 122 [2024-10-11 02:55:08,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:55:08,349 INFO L471 AbstractCegarLoop]: Abstraction has 50527 states and 86349 transitions. [2024-10-11 02:55:08,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:55:08,350 INFO L276 IsEmpty]: Start isEmpty. Operand 50527 states and 86349 transitions. [2024-10-11 02:55:08,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-10-11 02:55:08,387 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:55:08,387 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:55:08,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 02:55:08,387 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:55:08,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:55:08,388 INFO L85 PathProgramCache]: Analyzing trace with hash 386609466, now seen corresponding path program 1 times [2024-10-11 02:55:08,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:55:08,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847253867] [2024-10-11 02:55:08,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:55:08,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:55:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:55:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:55:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:55:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:55:08,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:55:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:55:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-11 02:55:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 02:55:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 02:55:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 02:55:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 02:55:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 02:55:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-10-11 02:55:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:08,492 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:55:08,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:55:08,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847253867] [2024-10-11 02:55:08,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847253867] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:55:08,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:55:08,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 02:55:08,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563465662] [2024-10-11 02:55:08,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:55:08,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 02:55:08,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:55:08,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 02:55:08,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 02:55:08,495 INFO L87 Difference]: Start difference. First operand 50527 states and 86349 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:55:11,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:55:11,532 INFO L93 Difference]: Finished difference Result 94246 states and 164759 transitions. [2024-10-11 02:55:11,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 02:55:11,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-10-11 02:55:11,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:55:11,896 INFO L225 Difference]: With dead ends: 94246 [2024-10-11 02:55:11,897 INFO L226 Difference]: Without dead ends: 94056 [2024-10-11 02:55:11,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-10-11 02:55:11,940 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 1205 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 485 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:55:11,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 718 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 02:55:12,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94056 states. [2024-10-11 02:55:14,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94056 to 93907. [2024-10-11 02:55:14,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93907 states, 78546 states have (on average 1.6172306673796246) internal successors, (127027), 78553 states have internal predecessors, (127027), 15333 states have call successors, (15333), 23 states have call predecessors, (15333), 27 states have return successors, (17524), 15332 states have call predecessors, (17524), 15332 states have call successors, (17524) [2024-10-11 02:55:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93907 states to 93907 states and 159884 transitions. [2024-10-11 02:55:15,614 INFO L78 Accepts]: Start accepts. Automaton has 93907 states and 159884 transitions. Word has length 123 [2024-10-11 02:55:15,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:55:15,614 INFO L471 AbstractCegarLoop]: Abstraction has 93907 states and 159884 transitions. [2024-10-11 02:55:15,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-10-11 02:55:15,614 INFO L276 IsEmpty]: Start isEmpty. Operand 93907 states and 159884 transitions. [2024-10-11 02:55:15,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-10-11 02:55:15,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:55:15,700 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:55:15,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-11 02:55:15,700 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:55:15,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:55:15,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1353134269, now seen corresponding path program 1 times [2024-10-11 02:55:15,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:55:15,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976011874] [2024-10-11 02:55:15,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:55:15,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:55:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:15,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:55:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:15,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:55:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:15,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:55:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:15,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:55:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:15,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:55:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:15,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:55:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:15,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 02:55:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:15,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:55:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:15,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 02:55:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:15,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:55:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:15,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:55:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:16,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-10-11 02:55:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:16,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-10-11 02:55:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:16,005 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:55:16,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:55:16,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976011874] [2024-10-11 02:55:16,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976011874] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:55:16,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:55:16,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-11 02:55:16,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129578914] [2024-10-11 02:55:16,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:55:16,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 02:55:16,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:55:16,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 02:55:16,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2024-10-11 02:55:16,007 INFO L87 Difference]: Start difference. First operand 93907 states and 159884 transitions. Second operand has 18 states, 16 states have (on average 5.1875) internal successors, (83), 12 states have internal predecessors, (83), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-10-11 02:55:24,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:55:24,886 INFO L93 Difference]: Finished difference Result 187933 states and 331875 transitions. [2024-10-11 02:55:24,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-10-11 02:55:24,887 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.1875) internal successors, (83), 12 states have internal predecessors, (83), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 124 [2024-10-11 02:55:24,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:55:25,688 INFO L225 Difference]: With dead ends: 187933 [2024-10-11 02:55:25,688 INFO L226 Difference]: Without dead ends: 187748 [2024-10-11 02:55:25,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1381 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=900, Invalid=4070, Unknown=0, NotChecked=0, Total=4970 [2024-10-11 02:55:25,773 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 4748 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 8881 mSolverCounterSat, 1952 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4748 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 10833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1952 IncrementalHoareTripleChecker+Valid, 8881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:55:25,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4748 Valid, 2681 Invalid, 10833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1952 Valid, 8881 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-11 02:55:25,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187748 states. [2024-10-11 02:55:32,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187748 to 187076. [2024-10-11 02:55:33,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187076 states, 156528 states have (on average 1.6180427782888684) internal successors, (253269), 156433 states have internal predecessors, (253269), 30476 states have call successors, (30476), 62 states have call predecessors, (30476), 71 states have return successors, (38135), 30586 states have call predecessors, (38135), 30473 states have call successors, (38135) [2024-10-11 02:55:33,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187076 states to 187076 states and 321880 transitions. [2024-10-11 02:55:33,820 INFO L78 Accepts]: Start accepts. Automaton has 187076 states and 321880 transitions. Word has length 124 [2024-10-11 02:55:33,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:55:33,820 INFO L471 AbstractCegarLoop]: Abstraction has 187076 states and 321880 transitions. [2024-10-11 02:55:33,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 5.1875) internal successors, (83), 12 states have internal predecessors, (83), 6 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-10-11 02:55:33,821 INFO L276 IsEmpty]: Start isEmpty. Operand 187076 states and 321880 transitions. [2024-10-11 02:55:33,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-10-11 02:55:33,908 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:55:33,908 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:55:33,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-11 02:55:33,908 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:55:33,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:55:33,909 INFO L85 PathProgramCache]: Analyzing trace with hash 2046045996, now seen corresponding path program 1 times [2024-10-11 02:55:33,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:55:33,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853405157] [2024-10-11 02:55:33,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:55:33,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:55:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:55:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:55:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-11 02:55:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-11 02:55:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 02:55:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:55:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-11 02:55:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-11 02:55:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-11 02:55:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-11 02:55:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-10-11 02:55:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-10-11 02:55:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-11 02:55:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:55:34,549 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-11 02:55:34,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:55:34,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853405157] [2024-10-11 02:55:34,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853405157] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:55:34,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:55:34,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-11 02:55:34,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369681056] [2024-10-11 02:55:34,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:55:34,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 02:55:34,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:55:34,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 02:55:34,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:55:34,550 INFO L87 Difference]: Start difference. First operand 187076 states and 321880 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-10-11 02:55:40,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:55:40,951 INFO L93 Difference]: Finished difference Result 188704 states and 330896 transitions. [2024-10-11 02:55:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-11 02:55:40,957 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 125 [2024-10-11 02:55:40,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:55:41,977 INFO L225 Difference]: With dead ends: 188704 [2024-10-11 02:55:41,977 INFO L226 Difference]: Without dead ends: 187580 [2024-10-11 02:55:42,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=258, Invalid=864, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 02:55:42,035 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 2208 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 4777 mSolverCounterSat, 858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 5635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 4777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 02:55:42,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2223 Valid, 1424 Invalid, 5635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [858 Valid, 4777 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 02:55:42,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187580 states.