./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/email_spec0_product31.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c46ce92d5d51a05028bbc31057066da504d1448a24c04513108ae9144a2ce103 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 20:35:57,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 20:35:57,920 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 20:35:57,923 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 20:35:57,924 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 20:35:57,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 20:35:57,943 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 20:35:57,943 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 20:35:57,944 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 20:35:57,945 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 20:35:57,945 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 20:35:57,945 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 20:35:57,946 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 20:35:57,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 20:35:57,947 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 20:35:57,948 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 20:35:57,948 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 20:35:57,948 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 20:35:57,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 20:35:57,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 20:35:57,948 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 20:35:57,949 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 20:35:57,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 20:35:57,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 20:35:57,951 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 20:35:57,951 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 20:35:57,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 20:35:57,951 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 20:35:57,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 20:35:57,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 20:35:57,952 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 20:35:57,952 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 20:35:57,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:35:57,952 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 20:35:57,952 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 20:35:57,952 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 20:35:57,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 20:35:57,952 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 20:35:57,953 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 20:35:57,953 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 20:35:57,953 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 20:35:57,954 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 20:35:57,954 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46ce92d5d51a05028bbc31057066da504d1448a24c04513108ae9144a2ce103 [2024-11-11 20:35:58,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 20:35:58,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 20:35:58,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 20:35:58,168 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 20:35:58,169 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 20:35:58,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product31.cil.c [2024-11-11 20:35:59,358 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 20:35:59,616 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 20:35:59,617 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product31.cil.c [2024-11-11 20:35:59,641 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0db2585a/046700773188420ea1270cd596e32e9b/FLAGe17d144a8 [2024-11-11 20:35:59,923 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0db2585a/046700773188420ea1270cd596e32e9b [2024-11-11 20:35:59,925 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 20:35:59,927 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 20:35:59,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 20:35:59,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 20:35:59,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 20:35:59,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:35:59" (1/1) ... [2024-11-11 20:35:59,933 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2391dae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:35:59, skipping insertion in model container [2024-11-11 20:35:59,933 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:35:59" (1/1) ... [2024-11-11 20:35:59,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 20:36:00,377 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product31.cil.c[35932,35945] [2024-11-11 20:36:00,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:36:00,435 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 20:36:00,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [48] [2024-11-11 20:36:00,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] [2024-11-11 20:36:00,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [826] [2024-11-11 20:36:00,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1051] [2024-11-11 20:36:00,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1356] [2024-11-11 20:36:00,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1716] [2024-11-11 20:36:00,443 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1736] [2024-11-11 20:36:00,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1771] [2024-11-11 20:36:00,444 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1780] [2024-11-11 20:36:00,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2847] [2024-11-11 20:36:00,445 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2982] [2024-11-11 20:36:00,486 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product31.cil.c[35932,35945] [2024-11-11 20:36:00,505 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:36:00,528 INFO L204 MainTranslator]: Completed translation [2024-11-11 20:36:00,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00 WrapperNode [2024-11-11 20:36:00,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 20:36:00,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 20:36:00,529 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 20:36:00,529 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 20:36:00,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (1/1) ... [2024-11-11 20:36:00,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (1/1) ... [2024-11-11 20:36:00,593 INFO L138 Inliner]: procedures = 131, calls = 203, calls flagged for inlining = 61, calls inlined = 56, statements flattened = 1020 [2024-11-11 20:36:00,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 20:36:00,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 20:36:00,594 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 20:36:00,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 20:36:00,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (1/1) ... [2024-11-11 20:36:00,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (1/1) ... [2024-11-11 20:36:00,612 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (1/1) ... [2024-11-11 20:36:00,632 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-11 20:36:00,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (1/1) ... [2024-11-11 20:36:00,633 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (1/1) ... [2024-11-11 20:36:00,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (1/1) ... [2024-11-11 20:36:00,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (1/1) ... [2024-11-11 20:36:00,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (1/1) ... [2024-11-11 20:36:00,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (1/1) ... [2024-11-11 20:36:00,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 20:36:00,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 20:36:00,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 20:36:00,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 20:36:00,679 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (1/1) ... [2024-11-11 20:36:00,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:36:00,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:36:00,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-11 20:36:00,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-11 20:36:00,758 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-11 20:36:00,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-11 20:36:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-11 20:36:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-11 20:36:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-11 20:36:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-11 20:36:00,759 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-11 20:36:00,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-11 20:36:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-11 20:36:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-11 20:36:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-11 20:36:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-11 20:36:00,760 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-11 20:36:00,760 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-11 20:36:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-11 20:36:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-11 20:36:00,761 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-11 20:36:00,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-11 20:36:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-11 20:36:00,762 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-11 20:36:00,762 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-11 20:36:00,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-11 20:36:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-11 20:36:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-11 20:36:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 20:36:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-11 20:36:00,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-11 20:36:00,763 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-11 20:36:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-11 20:36:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-11 20:36:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-11 20:36:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-11 20:36:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-11 20:36:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-11 20:36:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-11 20:36:00,764 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-11 20:36:00,764 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-11 20:36:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-11 20:36:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-11 20:36:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-11 20:36:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-11 20:36:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-11 20:36:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-11 20:36:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-11 20:36:00,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-11 20:36:00,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 20:36:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 20:36:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 20:36:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 20:36:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-11 20:36:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-11 20:36:00,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 20:36:00,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 20:36:00,913 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 20:36:00,915 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 20:36:01,641 INFO L? ?]: Removed 473 outVars from TransFormulas that were not future-live. [2024-11-11 20:36:01,641 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 20:36:01,664 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 20:36:01,664 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 20:36:01,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:36:01 BoogieIcfgContainer [2024-11-11 20:36:01,665 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 20:36:01,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 20:36:01,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 20:36:01,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 20:36:01,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 08:35:59" (1/3) ... [2024-11-11 20:36:01,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba6b329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:36:01, skipping insertion in model container [2024-11-11 20:36:01,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:36:00" (2/3) ... [2024-11-11 20:36:01,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba6b329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:36:01, skipping insertion in model container [2024-11-11 20:36:01,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:36:01" (3/3) ... [2024-11-11 20:36:01,671 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product31.cil.c [2024-11-11 20:36:01,684 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 20:36:01,685 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 20:36:01,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 20:36:01,757 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;@2f7b7c86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 20:36:01,758 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 20:36:01,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 366 states, 283 states have (on average 1.5017667844522968) internal successors, (425), 287 states have internal predecessors, (425), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-11 20:36:01,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-11 20:36:01,783 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:01,784 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:01,785 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:01,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:01,790 INFO L85 PathProgramCache]: Analyzing trace with hash 839396453, now seen corresponding path program 1 times [2024-11-11 20:36:01,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:01,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429790747] [2024-11-11 20:36:01,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:01,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:01,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:36:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:36:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:36:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 20:36:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:36:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:36:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:36:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:36:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:36:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:36:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:36:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:36:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-11 20:36:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-11 20:36:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,426 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-11 20:36:02,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:02,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429790747] [2024-11-11 20:36:02,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429790747] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:36:02,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286895692] [2024-11-11 20:36:02,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:02,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:36:02,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:36:02,429 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:36:02,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 20:36:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:02,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 20:36:02,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:36:02,741 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-11 20:36:02,741 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:36:02,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286895692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:02,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:36:02,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-11 20:36:02,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480138193] [2024-11-11 20:36:02,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:02,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 20:36:02,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:02,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 20:36:02,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:36:02,776 INFO L87 Difference]: Start difference. First operand has 366 states, 283 states have (on average 1.5017667844522968) internal successors, (425), 287 states have internal predecessors, (425), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:02,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:02,828 INFO L93 Difference]: Finished difference Result 578 states and 836 transitions. [2024-11-11 20:36:02,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 20:36:02,830 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 145 [2024-11-11 20:36:02,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:02,844 INFO L225 Difference]: With dead ends: 578 [2024-11-11 20:36:02,845 INFO L226 Difference]: Without dead ends: 359 [2024-11-11 20:36:02,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:36:02,854 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:02,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:36:02,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-11 20:36:02,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-11 20:36:02,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 277 states have (on average 1.4945848375451263) internal successors, (414), 280 states have internal predecessors, (414), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-11 20:36:02,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 529 transitions. [2024-11-11 20:36:02,919 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 529 transitions. Word has length 145 [2024-11-11 20:36:02,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:02,921 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 529 transitions. [2024-11-11 20:36:02,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.0) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:02,922 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 529 transitions. [2024-11-11 20:36:02,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-11 20:36:02,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:02,930 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:02,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 20:36:03,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-11 20:36:03,131 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:03,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:03,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1597912540, now seen corresponding path program 1 times [2024-11-11 20:36:03,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:03,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425436621] [2024-11-11 20:36:03,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:03,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:03,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:36:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:36:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:36:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 20:36:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:36:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:36:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:36:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:36:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:36:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:36:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:36:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:36:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-11 20:36:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 20:36:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,398 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-11 20:36:03,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:03,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425436621] [2024-11-11 20:36:03,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425436621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:36:03,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737364692] [2024-11-11 20:36:03,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:03,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:36:03,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:36:03,402 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:36:03,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 20:36:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:03,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 1196 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 20:36:03,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:36:03,659 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-11 20:36:03,659 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:36:03,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737364692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:03,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:36:03,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-11 20:36:03,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164740027] [2024-11-11 20:36:03,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:03,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:36:03,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:03,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:36:03,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:36:03,662 INFO L87 Difference]: Start difference. First operand 359 states and 529 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:03,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:03,691 INFO L93 Difference]: Finished difference Result 568 states and 817 transitions. [2024-11-11 20:36:03,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:36:03,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 146 [2024-11-11 20:36:03,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:03,697 INFO L225 Difference]: With dead ends: 568 [2024-11-11 20:36:03,698 INFO L226 Difference]: Without dead ends: 362 [2024-11-11 20:36:03,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:36:03,699 INFO L435 NwaCegarLoop]: 527 mSDtfsCounter, 1 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:03,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1052 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:36:03,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-11 20:36:03,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 361. [2024-11-11 20:36:03,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 279 states have (on average 1.4910394265232976) internal successors, (416), 282 states have internal predecessors, (416), 58 states have call successors, (58), 23 states have call predecessors, (58), 23 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-11 20:36:03,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 531 transitions. [2024-11-11 20:36:03,726 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 531 transitions. Word has length 146 [2024-11-11 20:36:03,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:03,727 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 531 transitions. [2024-11-11 20:36:03,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:03,728 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 531 transitions. [2024-11-11 20:36:03,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-11 20:36:03,730 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:03,732 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:03,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-11 20:36:03,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-11 20:36:03,933 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:03,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:03,934 INFO L85 PathProgramCache]: Analyzing trace with hash -356487323, now seen corresponding path program 1 times [2024-11-11 20:36:03,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:03,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228360943] [2024-11-11 20:36:03,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:03,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:04,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:36:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:36:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:36:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:36:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:36:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:36:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:36:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:36:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:36:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:36:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:36:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-11 20:36:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 20:36:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-11 20:36:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,146 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-11 20:36:04,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:04,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228360943] [2024-11-11 20:36:04,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228360943] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:36:04,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350054793] [2024-11-11 20:36:04,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:04,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:36:04,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:36:04,149 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:36:04,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 20:36:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:36:04,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:36:04,416 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-11 20:36:04,416 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:36:04,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350054793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:04,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:36:04,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-11 20:36:04,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292725801] [2024-11-11 20:36:04,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:04,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:36:04,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:04,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:36:04,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:36:04,418 INFO L87 Difference]: Start difference. First operand 361 states and 531 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:04,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:04,452 INFO L93 Difference]: Finished difference Result 752 states and 1121 transitions. [2024-11-11 20:36:04,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:36:04,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 152 [2024-11-11 20:36:04,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:04,455 INFO L225 Difference]: With dead ends: 752 [2024-11-11 20:36:04,455 INFO L226 Difference]: Without dead ends: 418 [2024-11-11 20:36:04,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:36:04,459 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 107 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:04,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 1017 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:36:04,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-11 20:36:04,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 410. [2024-11-11 20:36:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 317 states have (on average 1.5078864353312302) internal successors, (478), 320 states have internal predecessors, (478), 69 states have call successors, (69), 23 states have call predecessors, (69), 23 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-11 20:36:04,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 615 transitions. [2024-11-11 20:36:04,482 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 615 transitions. Word has length 152 [2024-11-11 20:36:04,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:04,482 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 615 transitions. [2024-11-11 20:36:04,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 615 transitions. [2024-11-11 20:36:04,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-11 20:36:04,484 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:04,484 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:04,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-11 20:36:04,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:36:04,689 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:04,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:04,689 INFO L85 PathProgramCache]: Analyzing trace with hash -774145428, now seen corresponding path program 1 times [2024-11-11 20:36:04,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:04,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461835211] [2024-11-11 20:36:04,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:04,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:04,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:36:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:36:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:36:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 20:36:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:36:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:36:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:36:04,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:36:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:36:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:36:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:36:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 20:36:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:04,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-11 20:36:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-11 20:36:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:04,925 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-11 20:36:04,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:04,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461835211] [2024-11-11 20:36:04,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461835211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:36:04,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566443668] [2024-11-11 20:36:04,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:04,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:36:04,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:36:04,930 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:36:04,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 20:36:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-11 20:36:05,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:36:05,254 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-11 20:36:05,254 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:36:05,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566443668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:05,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:36:05,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-11 20:36:05,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893878479] [2024-11-11 20:36:05,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:05,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:36:05,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:05,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:36:05,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:36:05,257 INFO L87 Difference]: Start difference. First operand 410 states and 615 transitions. Second operand has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-11 20:36:05,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:05,307 INFO L93 Difference]: Finished difference Result 811 states and 1220 transitions. [2024-11-11 20:36:05,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:36:05,308 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 153 [2024-11-11 20:36:05,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:05,310 INFO L225 Difference]: With dead ends: 811 [2024-11-11 20:36:05,310 INFO L226 Difference]: Without dead ends: 412 [2024-11-11 20:36:05,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:36:05,312 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 2 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:05,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2073 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:36:05,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-11 20:36:05,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2024-11-11 20:36:05,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 318 states have (on average 1.5062893081761006) internal successors, (479), 322 states have internal predecessors, (479), 69 states have call successors, (69), 23 states have call predecessors, (69), 24 states have return successors, (70), 68 states have call predecessors, (70), 68 states have call successors, (70) [2024-11-11 20:36:05,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 618 transitions. [2024-11-11 20:36:05,323 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 618 transitions. Word has length 153 [2024-11-11 20:36:05,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:05,323 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 618 transitions. [2024-11-11 20:36:05,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.5) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-11 20:36:05,324 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 618 transitions. [2024-11-11 20:36:05,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-11 20:36:05,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:05,326 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:05,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-11 20:36:05,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:36:05,526 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:05,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:05,527 INFO L85 PathProgramCache]: Analyzing trace with hash -2053211531, now seen corresponding path program 1 times [2024-11-11 20:36:05,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:05,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950333453] [2024-11-11 20:36:05,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:05,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 20:36:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:36:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:36:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:36:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:36:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:36:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 20:36:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:36:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:36:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:36:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 20:36:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-11 20:36:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 20:36:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:05,760 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-11 20:36:05,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:05,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950333453] [2024-11-11 20:36:05,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950333453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:36:05,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453309250] [2024-11-11 20:36:05,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:05,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:36:05,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:36:05,762 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:36:05,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 20:36:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-11 20:36:06,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:36:06,046 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-11 20:36:06,048 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:36:06,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453309250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:06,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:36:06,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-11 20:36:06,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646366716] [2024-11-11 20:36:06,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:06,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:36:06,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:06,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:36:06,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:36:06,050 INFO L87 Difference]: Start difference. First operand 412 states and 618 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-11 20:36:06,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:06,098 INFO L93 Difference]: Finished difference Result 813 states and 1225 transitions. [2024-11-11 20:36:06,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:36:06,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 154 [2024-11-11 20:36:06,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:06,103 INFO L225 Difference]: With dead ends: 813 [2024-11-11 20:36:06,103 INFO L226 Difference]: Without dead ends: 414 [2024-11-11 20:36:06,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:36:06,105 INFO L435 NwaCegarLoop]: 519 mSDtfsCounter, 2 mSDsluCounter, 1540 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:06,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2059 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:36:06,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-11 20:36:06,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2024-11-11 20:36:06,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 319 states have (on average 1.5047021943573669) internal successors, (480), 324 states have internal predecessors, (480), 69 states have call successors, (69), 23 states have call predecessors, (69), 25 states have return successors, (75), 68 states have call predecessors, (75), 68 states have call successors, (75) [2024-11-11 20:36:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 624 transitions. [2024-11-11 20:36:06,121 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 624 transitions. Word has length 154 [2024-11-11 20:36:06,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:06,121 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 624 transitions. [2024-11-11 20:36:06,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-11 20:36:06,121 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 624 transitions. [2024-11-11 20:36:06,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-11 20:36:06,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:06,123 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:06,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-11 20:36:06,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:36:06,324 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:06,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:06,325 INFO L85 PathProgramCache]: Analyzing trace with hash -735108027, now seen corresponding path program 1 times [2024-11-11 20:36:06,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:06,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374488889] [2024-11-11 20:36:06,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:06,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 20:36:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:36:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:36:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:36:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:36:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:36:06,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:36:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:36:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:36:06,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:36:06,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:06,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-11 20:36:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-11-11 20:36:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:06,501 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-11 20:36:06,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:06,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374488889] [2024-11-11 20:36:06,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374488889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:06,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:06,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:36:06,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463512168] [2024-11-11 20:36:06,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:06,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:36:06,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:06,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:36:06,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:36:06,503 INFO L87 Difference]: Start difference. First operand 414 states and 624 transitions. Second operand has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-11 20:36:08,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:08,281 INFO L93 Difference]: Finished difference Result 999 states and 1500 transitions. [2024-11-11 20:36:08,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 20:36:08,282 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 155 [2024-11-11 20:36:08,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:08,285 INFO L225 Difference]: With dead ends: 999 [2024-11-11 20:36:08,285 INFO L226 Difference]: Without dead ends: 608 [2024-11-11 20:36:08,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:36:08,286 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 1224 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2674 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 3102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 2674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:08,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 1108 Invalid, 3102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 2674 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-11 20:36:08,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-11 20:36:08,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 414. [2024-11-11 20:36:08,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 319 states have (on average 1.5047021943573669) internal successors, (480), 324 states have internal predecessors, (480), 69 states have call successors, (69), 23 states have call predecessors, (69), 25 states have return successors, (74), 68 states have call predecessors, (74), 68 states have call successors, (74) [2024-11-11 20:36:08,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 623 transitions. [2024-11-11 20:36:08,318 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 623 transitions. Word has length 155 [2024-11-11 20:36:08,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:08,318 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 623 transitions. [2024-11-11 20:36:08,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-11 20:36:08,318 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 623 transitions. [2024-11-11 20:36:08,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-11 20:36:08,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:08,321 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:08,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 20:36:08,321 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:08,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:08,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1654152620, now seen corresponding path program 2 times [2024-11-11 20:36:08,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:08,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802440199] [2024-11-11 20:36:08,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:08,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 20:36:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:36:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:36:08,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:36:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:36:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:36:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:36:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:36:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:36:08,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-11 20:36:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 20:36:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 20:36:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-11 20:36:08,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:08,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802440199] [2024-11-11 20:36:08,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802440199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:08,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:08,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:36:08,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952121668] [2024-11-11 20:36:08,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:08,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:36:08,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:08,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:36:08,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:36:08,496 INFO L87 Difference]: Start difference. First operand 414 states and 623 transitions. Second operand has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-11 20:36:10,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:10,149 INFO L93 Difference]: Finished difference Result 1001 states and 1503 transitions. [2024-11-11 20:36:10,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 20:36:10,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 156 [2024-11-11 20:36:10,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:10,153 INFO L225 Difference]: With dead ends: 1001 [2024-11-11 20:36:10,154 INFO L226 Difference]: Without dead ends: 610 [2024-11-11 20:36:10,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:36:10,159 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 1341 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1342 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:10,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1342 Valid, 1108 Invalid, 2949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 20:36:10,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-11-11 20:36:10,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 416. [2024-11-11 20:36:10,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 320 states have (on average 1.503125) internal successors, (481), 326 states have internal predecessors, (481), 69 states have call successors, (69), 23 states have call predecessors, (69), 26 states have return successors, (76), 68 states have call predecessors, (76), 68 states have call successors, (76) [2024-11-11 20:36:10,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 626 transitions. [2024-11-11 20:36:10,189 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 626 transitions. Word has length 156 [2024-11-11 20:36:10,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:10,190 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 626 transitions. [2024-11-11 20:36:10,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.125) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-11 20:36:10,190 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 626 transitions. [2024-11-11 20:36:10,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-11 20:36:10,191 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:10,191 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:10,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 20:36:10,192 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:10,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:10,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1779422762, now seen corresponding path program 1 times [2024-11-11 20:36:10,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:10,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758860552] [2024-11-11 20:36:10,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:10,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:10,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:36:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:36:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:36:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:36:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:36:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:36:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:36:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-11 20:36:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 20:36:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-11 20:36:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-11 20:36:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:10,398 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-11 20:36:10,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:10,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758860552] [2024-11-11 20:36:10,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758860552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:10,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:10,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-11 20:36:10,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125251657] [2024-11-11 20:36:10,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:10,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:36:10,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:10,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:36:10,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:36:10,399 INFO L87 Difference]: Start difference. First operand 416 states and 626 transitions. Second operand has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-11 20:36:12,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:12,533 INFO L93 Difference]: Finished difference Result 999 states and 1498 transitions. [2024-11-11 20:36:12,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 20:36:12,533 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 157 [2024-11-11 20:36:12,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:12,536 INFO L225 Difference]: With dead ends: 999 [2024-11-11 20:36:12,536 INFO L226 Difference]: Without dead ends: 610 [2024-11-11 20:36:12,537 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-11 20:36:12,537 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 1266 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4277 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 4719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 4277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:12,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 1535 Invalid, 4719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 4277 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-11 20:36:12,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-11-11 20:36:12,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 416. [2024-11-11 20:36:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 320 states have (on average 1.503125) internal successors, (481), 326 states have internal predecessors, (481), 69 states have call successors, (69), 23 states have call predecessors, (69), 26 states have return successors, (75), 68 states have call predecessors, (75), 68 states have call successors, (75) [2024-11-11 20:36:12,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 625 transitions. [2024-11-11 20:36:12,569 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 625 transitions. Word has length 157 [2024-11-11 20:36:12,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:12,569 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 625 transitions. [2024-11-11 20:36:12,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.454545454545455) internal successors, (93), 8 states have internal predecessors, (93), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-11 20:36:12,569 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 625 transitions. [2024-11-11 20:36:12,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-11 20:36:12,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:12,571 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:12,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 20:36:12,571 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:12,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:12,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1667075748, now seen corresponding path program 2 times [2024-11-11 20:36:12,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:12,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421211035] [2024-11-11 20:36:12,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:12,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:12,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:36:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:36:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:36:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:36:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 20:36:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:36:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:36:12,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:36:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 20:36:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-11 20:36:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-11 20:36:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:12,782 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-11 20:36:12,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:12,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421211035] [2024-11-11 20:36:12,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421211035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:12,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:12,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-11 20:36:12,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142156493] [2024-11-11 20:36:12,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:12,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:36:12,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:12,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:36:12,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:36:12,784 INFO L87 Difference]: Start difference. First operand 416 states and 625 transitions. Second operand has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-11 20:36:14,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:14,720 INFO L93 Difference]: Finished difference Result 1001 states and 1504 transitions. [2024-11-11 20:36:14,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 20:36:14,720 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) Word has length 158 [2024-11-11 20:36:14,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:14,723 INFO L225 Difference]: With dead ends: 1001 [2024-11-11 20:36:14,723 INFO L226 Difference]: Without dead ends: 612 [2024-11-11 20:36:14,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-11 20:36:14,725 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 1225 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 4450 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 4879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 4450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:14,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1227 Valid, 1535 Invalid, 4879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 4450 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 20:36:14,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-11-11 20:36:14,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 418. [2024-11-11 20:36:14,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 321 states have (on average 1.5015576323987538) internal successors, (482), 328 states have internal predecessors, (482), 69 states have call successors, (69), 23 states have call predecessors, (69), 27 states have return successors, (80), 68 states have call predecessors, (80), 68 states have call successors, (80) [2024-11-11 20:36:14,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 631 transitions. [2024-11-11 20:36:14,749 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 631 transitions. Word has length 158 [2024-11-11 20:36:14,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:14,749 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 631 transitions. [2024-11-11 20:36:14,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.545454545454545) internal successors, (94), 8 states have internal predecessors, (94), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 3 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-11 20:36:14,749 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 631 transitions. [2024-11-11 20:36:14,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-11 20:36:14,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:14,751 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:14,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 20:36:14,751 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:14,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:14,752 INFO L85 PathProgramCache]: Analyzing trace with hash -825535311, now seen corresponding path program 1 times [2024-11-11 20:36:14,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:14,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458932179] [2024-11-11 20:36:14,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:14,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:14,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:36:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:36:14,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:36:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:36:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:36:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:36:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:36:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 20:36:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 20:36:14,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-11 20:36:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-11 20:36:14,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:14,888 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-11 20:36:14,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:14,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458932179] [2024-11-11 20:36:14,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458932179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:14,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:14,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:36:14,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348350082] [2024-11-11 20:36:14,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:14,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:36:14,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:14,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:36:14,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:36:14,890 INFO L87 Difference]: Start difference. First operand 418 states and 631 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-11 20:36:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:16,354 INFO L93 Difference]: Finished difference Result 1003 states and 1507 transitions. [2024-11-11 20:36:16,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 20:36:16,354 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 159 [2024-11-11 20:36:16,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:16,357 INFO L225 Difference]: With dead ends: 1003 [2024-11-11 20:36:16,357 INFO L226 Difference]: Without dead ends: 612 [2024-11-11 20:36:16,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-11 20:36:16,359 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 1245 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 3105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:16,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1099 Invalid, 3105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-11 20:36:16,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-11-11 20:36:16,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 418. [2024-11-11 20:36:16,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 321 states have (on average 1.5015576323987538) internal successors, (482), 328 states have internal predecessors, (482), 69 states have call successors, (69), 23 states have call predecessors, (69), 27 states have return successors, (80), 68 states have call predecessors, (80), 68 states have call successors, (80) [2024-11-11 20:36:16,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 631 transitions. [2024-11-11 20:36:16,385 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 631 transitions. Word has length 159 [2024-11-11 20:36:16,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:16,385 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 631 transitions. [2024-11-11 20:36:16,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-11 20:36:16,386 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 631 transitions. [2024-11-11 20:36:16,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-11 20:36:16,387 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:16,387 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:16,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 20:36:16,388 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:16,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:16,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1540499759, now seen corresponding path program 1 times [2024-11-11 20:36:16,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:16,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989049455] [2024-11-11 20:36:16,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:16,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:16,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:16,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:36:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:36:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:36:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:36:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:36:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:36:16,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:36:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 20:36:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 20:36:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-11 20:36:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-11 20:36:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:16,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:16,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989049455] [2024-11-11 20:36:16,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989049455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:36:16,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140066144] [2024-11-11 20:36:16,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:16,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:36:16,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:36:16,502 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:36:16,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 20:36:16,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:16,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:36:16,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:36:16,809 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:16,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:36:16,904 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:16,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140066144] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:36:16,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:36:16,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-11-11 20:36:16,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814775844] [2024-11-11 20:36:16,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:36:16,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-11 20:36:16,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:16,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-11 20:36:16,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:36:16,905 INFO L87 Difference]: Start difference. First operand 418 states and 631 transitions. Second operand has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 7 states have internal predecessors, (131), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-11 20:36:18,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:18,177 INFO L93 Difference]: Finished difference Result 1170 states and 1831 transitions. [2024-11-11 20:36:18,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 20:36:18,178 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 7 states have internal predecessors, (131), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 159 [2024-11-11 20:36:18,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:18,182 INFO L225 Difference]: With dead ends: 1170 [2024-11-11 20:36:18,182 INFO L226 Difference]: Without dead ends: 964 [2024-11-11 20:36:18,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:36:18,184 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 1739 mSDsluCounter, 1077 mSDsCounter, 0 mSdLazyCounter, 1682 mSolverCounterSat, 579 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 579 IncrementalHoareTripleChecker+Valid, 1682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:18,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 1296 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [579 Valid, 1682 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 20:36:18,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2024-11-11 20:36:18,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 746. [2024-11-11 20:36:18,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 585 states have (on average 1.5726495726495726) internal successors, (920), 592 states have internal predecessors, (920), 133 states have call successors, (133), 23 states have call predecessors, (133), 27 states have return successors, (154), 132 states have call predecessors, (154), 132 states have call successors, (154) [2024-11-11 20:36:18,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1207 transitions. [2024-11-11 20:36:18,231 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1207 transitions. Word has length 159 [2024-11-11 20:36:18,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:18,231 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 1207 transitions. [2024-11-11 20:36:18,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.909090909090908) internal successors, (131), 7 states have internal predecessors, (131), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-11 20:36:18,231 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1207 transitions. [2024-11-11 20:36:18,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-11 20:36:18,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:18,234 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:18,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-11 20:36:18,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:36:18,435 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:18,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:18,436 INFO L85 PathProgramCache]: Analyzing trace with hash 716966092, now seen corresponding path program 1 times [2024-11-11 20:36:18,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:18,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626803437] [2024-11-11 20:36:18,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:18,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:36:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:36:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:36:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:36:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:36:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:36:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 20:36:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 20:36:18,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-11 20:36:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-11 20:36:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-11 20:36:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:18,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:18,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626803437] [2024-11-11 20:36:18,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626803437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:18,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:18,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:36:18,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020441546] [2024-11-11 20:36:18,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:18,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:36:18,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:18,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:36:18,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:36:18,533 INFO L87 Difference]: Start difference. First operand 746 states and 1207 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:19,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:19,706 INFO L93 Difference]: Finished difference Result 1951 states and 3202 transitions. [2024-11-11 20:36:19,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:36:19,707 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2024-11-11 20:36:19,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:19,713 INFO L225 Difference]: With dead ends: 1951 [2024-11-11 20:36:19,713 INFO L226 Difference]: Without dead ends: 1273 [2024-11-11 20:36:19,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:36:19,715 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 1398 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:19,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1413 Valid, 877 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 1533 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:36:19,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2024-11-11 20:36:19,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1071. [2024-11-11 20:36:19,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 846 states have (on average 1.5898345153664302) internal successors, (1345), 853 states have internal predecessors, (1345), 197 states have call successors, (197), 23 states have call predecessors, (197), 27 states have return successors, (228), 196 states have call predecessors, (228), 196 states have call successors, (228) [2024-11-11 20:36:19,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1770 transitions. [2024-11-11 20:36:19,757 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1770 transitions. Word has length 165 [2024-11-11 20:36:19,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:19,758 INFO L471 AbstractCegarLoop]: Abstraction has 1071 states and 1770 transitions. [2024-11-11 20:36:19,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:19,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1770 transitions. [2024-11-11 20:36:19,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-11 20:36:19,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:19,762 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:19,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 20:36:19,762 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:19,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:19,762 INFO L85 PathProgramCache]: Analyzing trace with hash 615857154, now seen corresponding path program 1 times [2024-11-11 20:36:19,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:19,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978795781] [2024-11-11 20:36:19,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:19,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:36:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:36:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:36:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:36:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:36:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:36:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-11 20:36:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 20:36:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-11 20:36:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-11 20:36:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-11 20:36:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:19,863 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:19,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:19,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978795781] [2024-11-11 20:36:19,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978795781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:19,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:19,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:36:19,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101378708] [2024-11-11 20:36:19,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:19,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:36:19,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:19,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:36:19,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:36:19,865 INFO L87 Difference]: Start difference. First operand 1071 states and 1770 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:20,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:20,987 INFO L93 Difference]: Finished difference Result 2731 states and 4551 transitions. [2024-11-11 20:36:20,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:36:20,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 166 [2024-11-11 20:36:20,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:20,996 INFO L225 Difference]: With dead ends: 2731 [2024-11-11 20:36:20,996 INFO L226 Difference]: Without dead ends: 1781 [2024-11-11 20:36:21,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:36:21,001 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 1446 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:21,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 824 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:36:21,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2024-11-11 20:36:21,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1579. [2024-11-11 20:36:21,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1259 states have (on average 1.6012708498808579) internal successors, (2016), 1266 states have internal predecessors, (2016), 292 states have call successors, (292), 23 states have call predecessors, (292), 27 states have return successors, (323), 291 states have call predecessors, (323), 291 states have call successors, (323) [2024-11-11 20:36:21,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2631 transitions. [2024-11-11 20:36:21,061 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2631 transitions. Word has length 166 [2024-11-11 20:36:21,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:21,062 INFO L471 AbstractCegarLoop]: Abstraction has 1579 states and 2631 transitions. [2024-11-11 20:36:21,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:21,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2631 transitions. [2024-11-11 20:36:21,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-11 20:36:21,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:21,068 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:21,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 20:36:21,068 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:21,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:21,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1054355090, now seen corresponding path program 1 times [2024-11-11 20:36:21,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:21,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658490481] [2024-11-11 20:36:21,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:21,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:21,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:36:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:36:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:36:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:36:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:36:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:36:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 20:36:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 20:36:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 20:36:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-11 20:36:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 20:36:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:21,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:21,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658490481] [2024-11-11 20:36:21,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658490481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:21,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:21,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:36:21,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206371194] [2024-11-11 20:36:21,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:21,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:36:21,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:21,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:36:21,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:36:21,157 INFO L87 Difference]: Start difference. First operand 1579 states and 2631 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:22,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:22,313 INFO L93 Difference]: Finished difference Result 3883 states and 6560 transitions. [2024-11-11 20:36:22,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:36:22,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2024-11-11 20:36:22,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:22,323 INFO L225 Difference]: With dead ends: 3883 [2024-11-11 20:36:22,323 INFO L226 Difference]: Without dead ends: 2550 [2024-11-11 20:36:22,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:36:22,327 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 1351 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:22,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 810 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:36:22,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2024-11-11 20:36:22,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2348. [2024-11-11 20:36:22,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 1905 states have (on average 1.6099737532808398) internal successors, (3067), 1912 states have internal predecessors, (3067), 415 states have call successors, (415), 23 states have call predecessors, (415), 27 states have return successors, (462), 414 states have call predecessors, (462), 414 states have call successors, (462) [2024-11-11 20:36:22,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3944 transitions. [2024-11-11 20:36:22,397 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3944 transitions. Word has length 167 [2024-11-11 20:36:22,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:22,397 INFO L471 AbstractCegarLoop]: Abstraction has 2348 states and 3944 transitions. [2024-11-11 20:36:22,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3944 transitions. [2024-11-11 20:36:22,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-11 20:36:22,407 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:22,407 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:22,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 20:36:22,408 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:22,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:22,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1221288413, now seen corresponding path program 1 times [2024-11-11 20:36:22,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:22,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046694767] [2024-11-11 20:36:22,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:22,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:22,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:22,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:36:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:36:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 20:36:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:36:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:36:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:36:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 20:36:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 20:36:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-11 20:36:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-11 20:36:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 20:36:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:22,517 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:22,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:22,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046694767] [2024-11-11 20:36:22,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046694767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:22,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:22,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:36:22,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798743589] [2024-11-11 20:36:22,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:22,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:36:22,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:22,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:36:22,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:36:22,520 INFO L87 Difference]: Start difference. First operand 2348 states and 3944 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:23,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:23,567 INFO L93 Difference]: Finished difference Result 5677 states and 9694 transitions. [2024-11-11 20:36:23,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:36:23,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2024-11-11 20:36:23,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:23,582 INFO L225 Difference]: With dead ends: 5677 [2024-11-11 20:36:23,582 INFO L226 Difference]: Without dead ends: 3779 [2024-11-11 20:36:23,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:36:23,588 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 1343 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:23,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 810 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [479 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 20:36:23,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3779 states. [2024-11-11 20:36:23,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3779 to 3577. [2024-11-11 20:36:23,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3577 states, 2955 states have (on average 1.6155668358714044) internal successors, (4774), 2962 states have internal predecessors, (4774), 594 states have call successors, (594), 23 states have call predecessors, (594), 27 states have return successors, (667), 593 states have call predecessors, (667), 593 states have call successors, (667) [2024-11-11 20:36:23,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3577 states to 3577 states and 6035 transitions. [2024-11-11 20:36:23,695 INFO L78 Accepts]: Start accepts. Automaton has 3577 states and 6035 transitions. Word has length 168 [2024-11-11 20:36:23,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:23,695 INFO L471 AbstractCegarLoop]: Abstraction has 3577 states and 6035 transitions. [2024-11-11 20:36:23,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 3577 states and 6035 transitions. [2024-11-11 20:36:23,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-11 20:36:23,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:23,707 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:23,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 20:36:23,707 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:23,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:23,708 INFO L85 PathProgramCache]: Analyzing trace with hash -516137942, now seen corresponding path program 1 times [2024-11-11 20:36:23,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:23,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316858972] [2024-11-11 20:36:23,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:36:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:36:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:36:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:36:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:36:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-11 20:36:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:36:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 20:36:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 20:36:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:23,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-11 20:36:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-11 20:36:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:23,835 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:23,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:23,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316858972] [2024-11-11 20:36:23,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316858972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:23,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:23,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:36:23,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328338409] [2024-11-11 20:36:23,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:23,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:36:23,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:23,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:36:23,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:36:23,836 INFO L87 Difference]: Start difference. First operand 3577 states and 6035 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:24,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:24,972 INFO L93 Difference]: Finished difference Result 8625 states and 14841 transitions. [2024-11-11 20:36:24,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:36:24,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2024-11-11 20:36:24,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:24,995 INFO L225 Difference]: With dead ends: 8625 [2024-11-11 20:36:24,995 INFO L226 Difference]: Without dead ends: 5810 [2024-11-11 20:36:25,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:36:25,003 INFO L435 NwaCegarLoop]: 197 mSDtfsCounter, 1401 mSDsluCounter, 660 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 486 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:25,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 857 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [486 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:36:25,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5810 states. [2024-11-11 20:36:25,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5810 to 5608. [2024-11-11 20:36:25,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5608 states, 4610 states have (on average 1.6108459869848155) internal successors, (7426), 4617 states have internal predecessors, (7426), 970 states have call successors, (970), 23 states have call predecessors, (970), 27 states have return successors, (1087), 969 states have call predecessors, (1087), 969 states have call successors, (1087) [2024-11-11 20:36:25,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5608 states to 5608 states and 9483 transitions. [2024-11-11 20:36:25,220 INFO L78 Accepts]: Start accepts. Automaton has 5608 states and 9483 transitions. Word has length 169 [2024-11-11 20:36:25,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:25,220 INFO L471 AbstractCegarLoop]: Abstraction has 5608 states and 9483 transitions. [2024-11-11 20:36:25,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand 5608 states and 9483 transitions. [2024-11-11 20:36:25,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-11 20:36:25,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:25,239 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:25,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 20:36:25,239 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:25,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:25,239 INFO L85 PathProgramCache]: Analyzing trace with hash -357271705, now seen corresponding path program 1 times [2024-11-11 20:36:25,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:25,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242154260] [2024-11-11 20:36:25,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:25,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:25,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:36:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:36:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:36:25,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:36:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:36:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:36:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-11 20:36:25,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-11 20:36:25,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-11 20:36:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-11 20:36:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-11 20:36:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:25,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:25,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242154260] [2024-11-11 20:36:25,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242154260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:25,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:25,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:36:25,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881791756] [2024-11-11 20:36:25,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:25,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:36:25,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:25,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:36:25,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:36:25,328 INFO L87 Difference]: Start difference. First operand 5608 states and 9483 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:26,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:26,582 INFO L93 Difference]: Finished difference Result 13962 states and 24062 transitions. [2024-11-11 20:36:26,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:36:26,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2024-11-11 20:36:26,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:26,613 INFO L225 Difference]: With dead ends: 13962 [2024-11-11 20:36:26,614 INFO L226 Difference]: Without dead ends: 9493 [2024-11-11 20:36:26,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:36:26,628 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 1420 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1473 mSolverCounterSat, 492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 842 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 492 IncrementalHoareTripleChecker+Valid, 1473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:26,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 842 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [492 Valid, 1473 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:36:26,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9493 states. [2024-11-11 20:36:26,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9493 to 9291. [2024-11-11 20:36:26,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9291 states, 7687 states have (on average 1.6094705346689215) internal successors, (12372), 7694 states have internal predecessors, (12372), 1576 states have call successors, (1576), 23 states have call predecessors, (1576), 27 states have return successors, (1771), 1575 states have call predecessors, (1771), 1575 states have call successors, (1771) [2024-11-11 20:36:26,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9291 states to 9291 states and 15719 transitions. [2024-11-11 20:36:26,936 INFO L78 Accepts]: Start accepts. Automaton has 9291 states and 15719 transitions. Word has length 170 [2024-11-11 20:36:26,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:26,936 INFO L471 AbstractCegarLoop]: Abstraction has 9291 states and 15719 transitions. [2024-11-11 20:36:26,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:26,937 INFO L276 IsEmpty]: Start isEmpty. Operand 9291 states and 15719 transitions. [2024-11-11 20:36:26,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-11 20:36:26,969 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:26,969 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:26,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 20:36:26,969 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:26,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:26,969 INFO L85 PathProgramCache]: Analyzing trace with hash 446448152, now seen corresponding path program 1 times [2024-11-11 20:36:26,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:26,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034640102] [2024-11-11 20:36:26,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:26,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:36:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:36:27,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:36:27,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:36:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:36:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 20:36:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 20:36:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 20:36:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 20:36:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-11 20:36:27,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-11 20:36:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:27,059 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:27,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:27,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034640102] [2024-11-11 20:36:27,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034640102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:27,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:27,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:36:27,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026533476] [2024-11-11 20:36:27,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:27,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:36:27,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:27,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:36:27,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:36:27,060 INFO L87 Difference]: Start difference. First operand 9291 states and 15719 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:28,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:28,362 INFO L93 Difference]: Finished difference Result 24146 states and 41608 transitions. [2024-11-11 20:36:28,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:36:28,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2024-11-11 20:36:28,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:28,408 INFO L225 Difference]: With dead ends: 24146 [2024-11-11 20:36:28,408 INFO L226 Difference]: Without dead ends: 16446 [2024-11-11 20:36:28,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:36:28,428 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 1364 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 499 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 499 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:28,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 871 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [499 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:36:28,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16446 states. [2024-11-11 20:36:28,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16446 to 16244. [2024-11-11 20:36:28,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16244 states, 13437 states have (on average 1.6011014363325147) internal successors, (21514), 13444 states have internal predecessors, (21514), 2779 states have call successors, (2779), 23 states have call predecessors, (2779), 27 states have return successors, (3118), 2778 states have call predecessors, (3118), 2778 states have call successors, (3118) [2024-11-11 20:36:28,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16244 states to 16244 states and 27411 transitions. [2024-11-11 20:36:28,946 INFO L78 Accepts]: Start accepts. Automaton has 16244 states and 27411 transitions. Word has length 171 [2024-11-11 20:36:28,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:28,946 INFO L471 AbstractCegarLoop]: Abstraction has 16244 states and 27411 transitions. [2024-11-11 20:36:28,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:28,946 INFO L276 IsEmpty]: Start isEmpty. Operand 16244 states and 27411 transitions. [2024-11-11 20:36:28,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-11 20:36:28,987 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:28,987 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:28,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 20:36:28,988 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:28,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:28,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1662518616, now seen corresponding path program 1 times [2024-11-11 20:36:28,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:28,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902948404] [2024-11-11 20:36:28,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:28,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:29,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:36:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:36:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 20:36:29,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:36:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:36:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-11 20:36:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 20:36:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-11 20:36:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-11 20:36:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-11 20:36:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-11-11 20:36:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:29,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:29,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902948404] [2024-11-11 20:36:29,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902948404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:29,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:29,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:36:29,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970182349] [2024-11-11 20:36:29,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:29,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:36:29,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:29,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:36:29,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:36:29,076 INFO L87 Difference]: Start difference. First operand 16244 states and 27411 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:30,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:30,538 INFO L93 Difference]: Finished difference Result 43112 states and 74207 transitions. [2024-11-11 20:36:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:36:30,538 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 172 [2024-11-11 20:36:30,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:30,630 INFO L225 Difference]: With dead ends: 43112 [2024-11-11 20:36:30,630 INFO L226 Difference]: Without dead ends: 29101 [2024-11-11 20:36:30,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:36:30,669 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 1330 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:30,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1345 Valid, 814 Invalid, 1988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:36:30,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29101 states. [2024-11-11 20:36:31,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29101 to 28899. [2024-11-11 20:36:31,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28899 states, 24053 states have (on average 1.5972227996507713) internal successors, (38418), 24060 states have internal predecessors, (38418), 4818 states have call successors, (4818), 23 states have call predecessors, (4818), 27 states have return successors, (5431), 4817 states have call predecessors, (5431), 4817 states have call successors, (5431) [2024-11-11 20:36:31,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28899 states to 28899 states and 48667 transitions. [2024-11-11 20:36:31,737 INFO L78 Accepts]: Start accepts. Automaton has 28899 states and 48667 transitions. Word has length 172 [2024-11-11 20:36:31,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:31,738 INFO L471 AbstractCegarLoop]: Abstraction has 28899 states and 48667 transitions. [2024-11-11 20:36:31,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:31,738 INFO L276 IsEmpty]: Start isEmpty. Operand 28899 states and 48667 transitions. [2024-11-11 20:36:31,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-11 20:36:31,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:31,797 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:31,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 20:36:31,797 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:31,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:31,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1811433338, now seen corresponding path program 1 times [2024-11-11 20:36:31,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:31,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58137028] [2024-11-11 20:36:31,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:31,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:31,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:31,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:36:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:36:31,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:36:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:36:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:36:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 20:36:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-11 20:36:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-11 20:36:31,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-11 20:36:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 20:36:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-11 20:36:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:31,904 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:31,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:31,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58137028] [2024-11-11 20:36:31,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58137028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:31,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:31,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:36:31,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987121829] [2024-11-11 20:36:31,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:31,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:36:31,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:31,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:36:31,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:36:31,906 INFO L87 Difference]: Start difference. First operand 28899 states and 48667 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:33,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:33,890 INFO L93 Difference]: Finished difference Result 78874 states and 134966 transitions. [2024-11-11 20:36:33,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:36:33,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2024-11-11 20:36:33,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:34,052 INFO L225 Difference]: With dead ends: 78874 [2024-11-11 20:36:34,052 INFO L226 Difference]: Without dead ends: 52980 [2024-11-11 20:36:34,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:36:34,113 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 1355 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 1998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:34,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 848 Invalid, 1998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:36:34,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52980 states. [2024-11-11 20:36:35,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52980 to 52778. [2024-11-11 20:36:35,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52778 states, 44217 states have (on average 1.5918538118823078) internal successors, (70387), 44224 states have internal predecessors, (70387), 8533 states have call successors, (8533), 23 states have call predecessors, (8533), 27 states have return successors, (9678), 8532 states have call predecessors, (9678), 8532 states have call successors, (9678) [2024-11-11 20:36:35,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52778 states to 52778 states and 88598 transitions. [2024-11-11 20:36:35,718 INFO L78 Accepts]: Start accepts. Automaton has 52778 states and 88598 transitions. Word has length 173 [2024-11-11 20:36:35,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:35,719 INFO L471 AbstractCegarLoop]: Abstraction has 52778 states and 88598 transitions. [2024-11-11 20:36:35,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:35,720 INFO L276 IsEmpty]: Start isEmpty. Operand 52778 states and 88598 transitions. [2024-11-11 20:36:35,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-11 20:36:35,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:35,819 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:35,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 20:36:35,819 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:35,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:35,820 INFO L85 PathProgramCache]: Analyzing trace with hash -102829240, now seen corresponding path program 1 times [2024-11-11 20:36:35,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:35,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876122038] [2024-11-11 20:36:35,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:35,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:36:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:36:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:36:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:36:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:36:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 20:36:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 20:36:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-11 20:36:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-11 20:36:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 20:36:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-11 20:36:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:35,926 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-11 20:36:35,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:35,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876122038] [2024-11-11 20:36:35,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876122038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:36:35,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:36:35,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:36:35,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092442524] [2024-11-11 20:36:35,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:36:35,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:36:35,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:35,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:36:35,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:36:35,928 INFO L87 Difference]: Start difference. First operand 52778 states and 88598 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:38,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:36:38,738 INFO L93 Difference]: Finished difference Result 98645 states and 169153 transitions. [2024-11-11 20:36:38,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:36:38,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2024-11-11 20:36:38,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:36:39,103 INFO L225 Difference]: With dead ends: 98645 [2024-11-11 20:36:39,103 INFO L226 Difference]: Without dead ends: 98439 [2024-11-11 20:36:39,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:36:39,146 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 1293 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 1591 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 1591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:36:39,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 851 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 1591 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:36:39,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98439 states. [2024-11-11 20:36:41,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98439 to 98237. [2024-11-11 20:36:42,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98237 states, 82877 states have (on average 1.5849632588052174) internal successors, (131357), 82884 states have internal predecessors, (131357), 15332 states have call successors, (15332), 23 states have call predecessors, (15332), 27 states have return successors, (17523), 15331 states have call predecessors, (17523), 15331 states have call successors, (17523) [2024-11-11 20:36:42,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98237 states to 98237 states and 164212 transitions. [2024-11-11 20:36:42,290 INFO L78 Accepts]: Start accepts. Automaton has 98237 states and 164212 transitions. Word has length 174 [2024-11-11 20:36:42,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:36:42,291 INFO L471 AbstractCegarLoop]: Abstraction has 98237 states and 164212 transitions. [2024-11-11 20:36:42,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:36:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 98237 states and 164212 transitions. [2024-11-11 20:36:42,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-11 20:36:42,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:36:42,389 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:36:42,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 20:36:42,389 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:36:42,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:36:42,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1861390265, now seen corresponding path program 1 times [2024-11-11 20:36:42,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:36:42,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831129044] [2024-11-11 20:36:42,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:42,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:36:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:42,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:36:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:42,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:36:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:42,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:36:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:42,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:36:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:42,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:36:42,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:42,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:36:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:42,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:36:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:42,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:36:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:42,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:36:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:42,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:36:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:43,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:36:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:43,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:36:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:43,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 20:36:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:43,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 20:36:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:43,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 20:36:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:43,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:43,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-11 20:36:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:43,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-11 20:36:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:43,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:36:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:43,038 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-11 20:36:43,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:36:43,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831129044] [2024-11-11 20:36:43,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831129044] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:36:43,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867665364] [2024-11-11 20:36:43,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:36:43,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:36:43,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:36:43,041 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:36:43,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-11 20:36:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:36:43,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-11 20:36:43,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:36:43,477 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:36:43,477 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:36:43,750 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-11 20:36:43,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867665364] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:36:43,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:36:43,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 32 [2024-11-11 20:36:43,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062287159] [2024-11-11 20:36:43,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:36:43,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-11 20:36:43,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:36:43,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-11 20:36:43,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2024-11-11 20:36:43,752 INFO L87 Difference]: Start difference. First operand 98237 states and 164212 transitions. Second operand has 32 states, 30 states have (on average 8.7) internal successors, (261), 24 states have internal predecessors, (261), 9 states have call successors, (53), 12 states have call predecessors, (53), 12 states have return successors, (46), 11 states have call predecessors, (46), 9 states have call successors, (46) [2024-11-11 20:37:04,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:37:04,609 INFO L93 Difference]: Finished difference Result 393478 states and 689979 transitions. [2024-11-11 20:37:04,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2024-11-11 20:37:04,609 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 8.7) internal successors, (261), 24 states have internal predecessors, (261), 9 states have call successors, (53), 12 states have call predecessors, (53), 12 states have return successors, (46), 11 states have call predecessors, (46), 9 states have call successors, (46) Word has length 175 [2024-11-11 20:37:04,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:37:06,441 INFO L225 Difference]: With dead ends: 393478 [2024-11-11 20:37:06,441 INFO L226 Difference]: Without dead ends: 393276 [2024-11-11 20:37:06,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9974 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=3808, Invalid=25604, Unknown=0, NotChecked=0, Total=29412 [2024-11-11 20:37:06,595 INFO L435 NwaCegarLoop]: 425 mSDtfsCounter, 6348 mSDsluCounter, 8264 mSDsCounter, 0 mSdLazyCounter, 27390 mSolverCounterSat, 2340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6360 SdHoareTripleChecker+Valid, 8689 SdHoareTripleChecker+Invalid, 29730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2340 IncrementalHoareTripleChecker+Valid, 27390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-11 20:37:06,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6360 Valid, 8689 Invalid, 29730 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2340 Valid, 27390 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-11 20:37:06,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393276 states.