./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/email_spec3_product17.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_spec3_product17.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 ece4fa184f09e2184919c279a0198f8db6972fb16f8b142297bd588b2043b23f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 20:41:46,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 20:41:46,095 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 20:41:46,100 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 20:41:46,101 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 20:41:46,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 20:41:46,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 20:41:46,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 20:41:46,130 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 20:41:46,131 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 20:41:46,131 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 20:41:46,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 20:41:46,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 20:41:46,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 20:41:46,134 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 20:41:46,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 20:41:46,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 20:41:46,135 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 20:41:46,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 20:41:46,135 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 20:41:46,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 20:41:46,138 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 20:41:46,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 20:41:46,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 20:41:46,139 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 20:41:46,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 20:41:46,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 20:41:46,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 20:41:46,140 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 20:41:46,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 20:41:46,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 20:41:46,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 20:41:46,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:41:46,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 20:41:46,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 20:41:46,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 20:41:46,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 20:41:46,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 20:41:46,141 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 20:41:46,141 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 20:41:46,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 20:41:46,144 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 20:41:46,144 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ece4fa184f09e2184919c279a0198f8db6972fb16f8b142297bd588b2043b23f [2024-11-11 20:41:46,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 20:41:46,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 20:41:46,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 20:41:46,398 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 20:41:46,398 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 20:41:46,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec3_product17.cil.c [2024-11-11 20:41:47,771 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 20:41:48,039 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 20:41:48,040 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec3_product17.cil.c [2024-11-11 20:41:48,059 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e8c7dd6/fdd6e444e16e4635b2db9f764a34a2cd/FLAG5408c99be [2024-11-11 20:41:48,073 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e8c7dd6/fdd6e444e16e4635b2db9f764a34a2cd [2024-11-11 20:41:48,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 20:41:48,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 20:41:48,079 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 20:41:48,079 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 20:41:48,083 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 20:41:48,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b76e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48, skipping insertion in model container [2024-11-11 20:41:48,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,133 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 20:41:48,667 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_spec3_product17.cil.c[63718,63731] [2024-11-11 20:41:48,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:41:48,684 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 20:41:48,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-11 20:41:48,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [368] [2024-11-11 20:41:48,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [403] [2024-11-11 20:41:48,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [769] [2024-11-11 20:41:48,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [985] [2024-11-11 20:41:48,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1304] [2024-11-11 20:41:48,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [1321] [2024-11-11 20:41:48,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1380] [2024-11-11 20:41:48,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2444] [2024-11-11 20:41:48,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2543] [2024-11-11 20:41:48,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2944] [2024-11-11 20:41:48,767 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_spec3_product17.cil.c[63718,63731] [2024-11-11 20:41:48,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:41:48,796 INFO L204 MainTranslator]: Completed translation [2024-11-11 20:41:48,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48 WrapperNode [2024-11-11 20:41:48,797 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 20:41:48,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 20:41:48,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 20:41:48,798 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 20:41:48,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,863 INFO L138 Inliner]: procedures = 128, calls = 199, calls flagged for inlining = 52, calls inlined = 45, statements flattened = 894 [2024-11-11 20:41:48,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 20:41:48,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 20:41:48,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 20:41:48,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 20:41:48,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,898 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 20:41:48,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,928 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,930 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 20:41:48,936 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 20:41:48,936 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 20:41:48,936 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 20:41:48,937 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (1/1) ... [2024-11-11 20:41:48,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:41:48,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:41:48,975 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 20:41:48,977 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 20:41:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-11 20:41:49,011 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-11 20:41:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-11 20:41:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-11 20:41:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2024-11-11 20:41:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2024-11-11 20:41:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-11 20:41:49,013 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-11 20:41:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-11 20:41:49,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-11 20:41:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-11 20:41:49,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-11 20:41:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-11 20:41:49,014 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-11 20:41:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-11 20:41:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-11 20:41:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-11 20:41:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-11 20:41:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-11 20:41:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-11 20:41:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-11 20:41:49,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-11 20:41:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 20:41:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-11 20:41:49,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-11 20:41:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-11 20:41:49,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-11 20:41:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-11 20:41:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-11 20:41:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-11 20:41:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-11 20:41:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-11 20:41:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-11 20:41:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-11 20:41:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-11 20:41:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-11 20:41:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-11 20:41:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-11 20:41:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-11 20:41:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-11 20:41:49,018 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-11 20:41:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-11 20:41:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-11 20:41:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-11 20:41:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-11 20:41:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 20:41:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 20:41:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 20:41:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 20:41:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-11 20:41:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-11 20:41:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-11 20:41:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-11 20:41:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 20:41:49,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 20:41:49,166 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 20:41:49,168 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 20:41:49,763 INFO L? ?]: Removed 466 outVars from TransFormulas that were not future-live. [2024-11-11 20:41:49,763 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 20:41:49,779 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 20:41:49,780 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 20:41:49,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:41:49 BoogieIcfgContainer [2024-11-11 20:41:49,780 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 20:41:49,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 20:41:49,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 20:41:49,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 20:41:49,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 08:41:48" (1/3) ... [2024-11-11 20:41:49,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d09063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:41:49, skipping insertion in model container [2024-11-11 20:41:49,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:41:48" (2/3) ... [2024-11-11 20:41:49,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d09063 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:41:49, skipping insertion in model container [2024-11-11 20:41:49,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:41:49" (3/3) ... [2024-11-11 20:41:49,787 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product17.cil.c [2024-11-11 20:41:49,802 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 20:41:49,802 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 20:41:49,900 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 20:41:49,905 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;@28416b3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 20:41:49,905 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 20:41:49,910 INFO L276 IsEmpty]: Start isEmpty. Operand has 367 states, 285 states have (on average 1.5719298245614035) internal successors, (448), 290 states have internal predecessors, (448), 56 states have call successors, (56), 24 states have call predecessors, (56), 24 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-11 20:41:49,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-11 20:41:49,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:41:49,926 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:41:49,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:41:49,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:41:49,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1332961105, now seen corresponding path program 1 times [2024-11-11 20:41:49,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:41:49,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771601453] [2024-11-11 20:41:49,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:49,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:41:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:41:50,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:41:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:41:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:41:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:41:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:41:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 20:41:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:41:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:41:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:41:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:41:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:41:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:41:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:41:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:41:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 20:41:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 20:41:50,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:41:50,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:41:50,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771601453] [2024-11-11 20:41:50,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771601453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:41:50,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166485401] [2024-11-11 20:41:50,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:50,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:41:50,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:41:50,649 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 20:41:50,650 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 20:41:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-11 20:41:51,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:41:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-11 20:41:51,035 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:41:51,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166485401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:41:51,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:41:51,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-11 20:41:51,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323219438] [2024-11-11 20:41:51,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:41:51,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-11 20:41:51,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:41:51,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-11 20:41:51,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:41:51,070 INFO L87 Difference]: Start difference. First operand has 367 states, 285 states have (on average 1.5719298245614035) internal successors, (448), 290 states have internal predecessors, (448), 56 states have call successors, (56), 24 states have call predecessors, (56), 24 states have return successors, (56), 54 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:41:51,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:41:51,135 INFO L93 Difference]: Finished difference Result 545 states and 818 transitions. [2024-11-11 20:41:51,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-11 20:41:51,139 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131 [2024-11-11 20:41:51,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:41:51,152 INFO L225 Difference]: With dead ends: 545 [2024-11-11 20:41:51,152 INFO L226 Difference]: Without dead ends: 359 [2024-11-11 20:41:51,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 161 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 20:41:51,164 INFO L435 NwaCegarLoop]: 554 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, 554 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 20:41:51,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:41:51,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-11 20:41:51,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-11 20:41:51,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 279 states have (on average 1.5663082437275986) internal successors, (437), 282 states have internal predecessors, (437), 56 states have call successors, (56), 24 states have call predecessors, (56), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-11 20:41:51,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 546 transitions. [2024-11-11 20:41:51,262 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 546 transitions. Word has length 131 [2024-11-11 20:41:51,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:41:51,263 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 546 transitions. [2024-11-11 20:41:51,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:41:51,266 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 546 transitions. [2024-11-11 20:41:51,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 20:41:51,275 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:41:51,276 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:41:51,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 20:41:51,476 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 20:41:51,477 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:41:51,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:41:51,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1584837283, now seen corresponding path program 1 times [2024-11-11 20:41:51,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:41:51,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011896087] [2024-11-11 20:41:51,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:51,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:41:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:41:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:41:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:41:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:41:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:41:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:41:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 20:41:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:41:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:41:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:41:51,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:41:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:41:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:41:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:41:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:41:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:41:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 20:41:51,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,729 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:41:51,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:41:51,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011896087] [2024-11-11 20:41:51,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011896087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:41:51,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015635220] [2024-11-11 20:41:51,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:51,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:41:51,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:41:51,735 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 20:41:51,737 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 20:41:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:51,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 20:41:51,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:41:52,000 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-11 20:41:52,003 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:41:52,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015635220] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:41:52,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:41:52,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-11 20:41:52,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806897557] [2024-11-11 20:41:52,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:41:52,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:41:52,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:41:52,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:41:52,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:41:52,006 INFO L87 Difference]: Start difference. First operand 359 states and 546 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:41:52,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:41:52,076 INFO L93 Difference]: Finished difference Result 534 states and 792 transitions. [2024-11-11 20:41:52,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:41:52,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 132 [2024-11-11 20:41:52,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:41:52,084 INFO L225 Difference]: With dead ends: 534 [2024-11-11 20:41:52,084 INFO L226 Difference]: Without dead ends: 362 [2024-11-11 20:41:52,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:41:52,086 INFO L435 NwaCegarLoop]: 544 mSDtfsCounter, 1 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1086 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 20:41:52,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1086 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:41:52,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-11 20:41:52,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 361. [2024-11-11 20:41:52,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 281 states have (on average 1.5622775800711743) internal successors, (439), 284 states have internal predecessors, (439), 56 states have call successors, (56), 24 states have call predecessors, (56), 23 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-11 20:41:52,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 548 transitions. [2024-11-11 20:41:52,118 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 548 transitions. Word has length 132 [2024-11-11 20:41:52,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:41:52,118 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 548 transitions. [2024-11-11 20:41:52,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:41:52,119 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 548 transitions. [2024-11-11 20:41:52,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-11 20:41:52,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:41:52,123 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:41:52,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-11 20:41:52,324 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 20:41:52,324 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:41:52,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:41:52,329 INFO L85 PathProgramCache]: Analyzing trace with hash 365183500, now seen corresponding path program 1 times [2024-11-11 20:41:52,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:41:52,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243095929] [2024-11-11 20:41:52,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:52,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:41:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:41:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:41:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:41:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:41:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:41:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:41:52,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:41:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:41:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:41:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:41:52,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:41:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:41:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:41:52,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:41:52,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 20:41:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 20:41:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 20:41:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,644 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-11 20:41:52,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:41:52,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243095929] [2024-11-11 20:41:52,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243095929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:41:52,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021219317] [2024-11-11 20:41:52,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:52,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:41:52,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:41:52,649 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 20:41:52,650 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 20:41:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:52,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 1140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:41:52,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:41:52,931 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-11 20:41:52,934 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:41:52,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021219317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:41:52,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:41:52,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-11 20:41:52,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372657233] [2024-11-11 20:41:52,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:41:52,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:41:52,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:41:52,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:41:52,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:41:52,938 INFO L87 Difference]: Start difference. First operand 361 states and 548 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:41:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:41:52,965 INFO L93 Difference]: Finished difference Result 765 states and 1180 transitions. [2024-11-11 20:41:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:41:52,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 138 [2024-11-11 20:41:52,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:41:52,972 INFO L225 Difference]: With dead ends: 765 [2024-11-11 20:41:52,972 INFO L226 Difference]: Without dead ends: 431 [2024-11-11 20:41:52,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 167 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 20:41:52,974 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 126 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1055 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 20:41:52,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1055 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:41:52,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-11-11 20:41:52,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 423. [2024-11-11 20:41:52,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 329 states have (on average 1.580547112462006) internal successors, (520), 332 states have internal predecessors, (520), 70 states have call successors, (70), 24 states have call predecessors, (70), 23 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-11 20:41:52,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 657 transitions. [2024-11-11 20:41:52,991 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 657 transitions. Word has length 138 [2024-11-11 20:41:52,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:41:52,991 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 657 transitions. [2024-11-11 20:41:52,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:41:52,992 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 657 transitions. [2024-11-11 20:41:52,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-11 20:41:52,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:41:52,994 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:41:53,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 20:41:53,194 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 20:41:53,196 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:41:53,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:41:53,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1505396304, now seen corresponding path program 1 times [2024-11-11 20:41:53,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:41:53,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191447473] [2024-11-11 20:41:53,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:53,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:41:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:41:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:41:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:41:53,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:41:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:41:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-11 20:41:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 20:41:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:41:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:41:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 20:41:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:41:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:41:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:41:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-11 20:41:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,402 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:41:53,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:41:53,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191447473] [2024-11-11 20:41:53,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191447473] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:41:53,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [46899786] [2024-11-11 20:41:53,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:53,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:41:53,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:41:53,408 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 20:41:53,417 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 20:41:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:53,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-11 20:41:53,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:41:53,704 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:41:53,705 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:41:53,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [46899786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:41:53,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:41:53,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-11 20:41:53,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906800631] [2024-11-11 20:41:53,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:41:53,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:41:53,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:41:53,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:41:53,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:41:53,707 INFO L87 Difference]: Start difference. First operand 423 states and 657 transitions. Second operand has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:41:53,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:41:53,759 INFO L93 Difference]: Finished difference Result 837 states and 1304 transitions. [2024-11-11 20:41:53,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:41:53,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2024-11-11 20:41:53,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:41:53,763 INFO L225 Difference]: With dead ends: 837 [2024-11-11 20:41:53,763 INFO L226 Difference]: Without dead ends: 425 [2024-11-11 20:41:53,765 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 141 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 20:41:53,766 INFO L435 NwaCegarLoop]: 538 mSDtfsCounter, 2 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2141 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 20:41:53,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2141 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:41:53,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-11 20:41:53,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2024-11-11 20:41:53,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 330 states have (on average 1.5787878787878789) internal successors, (521), 334 states have internal predecessors, (521), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (69), 66 states have call predecessors, (69), 67 states have call successors, (69) [2024-11-11 20:41:53,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 660 transitions. [2024-11-11 20:41:53,783 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 660 transitions. Word has length 120 [2024-11-11 20:41:53,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:41:53,783 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 660 transitions. [2024-11-11 20:41:53,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:41:53,784 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 660 transitions. [2024-11-11 20:41:53,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-11 20:41:53,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:41:53,786 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:41:53,801 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 20:41:53,986 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 20:41:53,987 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:41:53,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:41:53,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1796841475, now seen corresponding path program 1 times [2024-11-11 20:41:53,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:41:53,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825402070] [2024-11-11 20:41:53,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:53,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:41:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:41:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:41:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:41:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:41:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 20:41:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:41:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:41:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:41:54,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:41:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:41:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:41:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:41:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:41:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:41:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:41:54,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:41:54,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825402070] [2024-11-11 20:41:54,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825402070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:41:54,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147851594] [2024-11-11 20:41:54,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:54,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:41:54,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:41:54,181 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 20:41:54,183 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 20:41:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-11 20:41:54,406 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:41:54,447 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:41:54,447 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:41:54,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147851594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:41:54,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:41:54,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-11 20:41:54,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328587624] [2024-11-11 20:41:54,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:41:54,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:41:54,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:41:54,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:41:54,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:41:54,449 INFO L87 Difference]: Start difference. First operand 425 states and 660 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:41:54,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:41:54,513 INFO L93 Difference]: Finished difference Result 839 states and 1309 transitions. [2024-11-11 20:41:54,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:41:54,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2024-11-11 20:41:54,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:41:54,515 INFO L225 Difference]: With dead ends: 839 [2024-11-11 20:41:54,516 INFO L226 Difference]: Without dead ends: 427 [2024-11-11 20:41:54,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 141 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 20:41:54,517 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 2 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2127 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 20:41:54,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2127 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:41:54,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-11 20:41:54,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2024-11-11 20:41:54,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 331 states have (on average 1.5770392749244713) internal successors, (522), 336 states have internal predecessors, (522), 70 states have call successors, (70), 24 states have call predecessors, (70), 25 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2024-11-11 20:41:54,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 666 transitions. [2024-11-11 20:41:54,537 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 666 transitions. Word has length 121 [2024-11-11 20:41:54,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:41:54,537 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 666 transitions. [2024-11-11 20:41:54,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:41:54,538 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 666 transitions. [2024-11-11 20:41:54,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-11 20:41:54,540 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:41:54,540 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:41:54,558 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 20:41:54,740 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 20:41:54,741 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:41:54,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:41:54,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1232659914, now seen corresponding path program 1 times [2024-11-11 20:41:54,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:41:54,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023961384] [2024-11-11 20:41:54,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:54,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:41:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:41:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:41:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:41:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:41:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:41:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 20:41:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:41:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:41:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:41:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:41:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:41:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:41:54,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:41:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:41:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 20:41:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-11 20:41:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-11 20:41:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:54,914 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-11 20:41:54,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:41:54,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023961384] [2024-11-11 20:41:54,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023961384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:41:54,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:41:54,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:41:54,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676485657] [2024-11-11 20:41:54,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:41:54,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:41:54,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:41:54,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:41:54,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:41:54,916 INFO L87 Difference]: Start difference. First operand 427 states and 666 transitions. Second operand has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-11 20:41:56,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:41:56,533 INFO L93 Difference]: Finished difference Result 925 states and 1461 transitions. [2024-11-11 20:41:56,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 20:41:56,533 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141 [2024-11-11 20:41:56,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:41:56,537 INFO L225 Difference]: With dead ends: 925 [2024-11-11 20:41:56,537 INFO L226 Difference]: Without dead ends: 521 [2024-11-11 20:41:56,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 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 20:41:56,538 INFO L435 NwaCegarLoop]: 204 mSDtfsCounter, 1183 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:41:56,538 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 1275 Invalid, 2608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-11 20:41:56,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2024-11-11 20:41:56,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 427. [2024-11-11 20:41:56,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 331 states have (on average 1.5770392749244713) internal successors, (522), 336 states have internal predecessors, (522), 70 states have call successors, (70), 24 states have call predecessors, (70), 25 states have return successors, (73), 66 states have call predecessors, (73), 67 states have call successors, (73) [2024-11-11 20:41:56,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 665 transitions. [2024-11-11 20:41:56,564 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 665 transitions. Word has length 141 [2024-11-11 20:41:56,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:41:56,564 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 665 transitions. [2024-11-11 20:41:56,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-11 20:41:56,564 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 665 transitions. [2024-11-11 20:41:56,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-11 20:41:56,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:41:56,566 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:41:56,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 20:41:56,567 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:41:56,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:41:56,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1823488409, now seen corresponding path program 2 times [2024-11-11 20:41:56,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:41:56,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908089495] [2024-11-11 20:41:56,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:56,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:41:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:41:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:41:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:41:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:41:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:41:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 20:41:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:41:56,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:41:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:41:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 20:41:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:41:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:41:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:41:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 20:41:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 20:41:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-11 20:41:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 20:41:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:56,739 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-11 20:41:56,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:41:56,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908089495] [2024-11-11 20:41:56,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908089495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:41:56,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:41:56,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:41:56,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375658508] [2024-11-11 20:41:56,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:41:56,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:41:56,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:41:56,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:41:56,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:41:56,740 INFO L87 Difference]: Start difference. First operand 427 states and 665 transitions. Second operand has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-11 20:41:58,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:41:58,152 INFO L93 Difference]: Finished difference Result 927 states and 1464 transitions. [2024-11-11 20:41:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-11 20:41:58,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 142 [2024-11-11 20:41:58,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:41:58,156 INFO L225 Difference]: With dead ends: 927 [2024-11-11 20:41:58,156 INFO L226 Difference]: Without dead ends: 523 [2024-11-11 20:41:58,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:41:58,158 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 1182 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:41:58,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 1274 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 2178 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 20:41:58,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-11 20:41:58,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 429. [2024-11-11 20:41:58,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 332 states have (on average 1.5753012048192772) internal successors, (523), 338 states have internal predecessors, (523), 70 states have call successors, (70), 24 states have call predecessors, (70), 26 states have return successors, (75), 66 states have call predecessors, (75), 67 states have call successors, (75) [2024-11-11 20:41:58,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 668 transitions. [2024-11-11 20:41:58,220 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 668 transitions. Word has length 142 [2024-11-11 20:41:58,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:41:58,220 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 668 transitions. [2024-11-11 20:41:58,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (21), 6 states have call predecessors, (21), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-11 20:41:58,220 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 668 transitions. [2024-11-11 20:41:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 20:41:58,223 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:41:58,223 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:41:58,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 20:41:58,224 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:41:58,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:41:58,224 INFO L85 PathProgramCache]: Analyzing trace with hash 659875555, now seen corresponding path program 1 times [2024-11-11 20:41:58,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:41:58,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170013307] [2024-11-11 20:41:58,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:41:58,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:41:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:41:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:41:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:41:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:41:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:41:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:41:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:41:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:41:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:41:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 20:41:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:41:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:41:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:41:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 20:41:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:41:58,491 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:41:58,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:41:58,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170013307] [2024-11-11 20:41:58,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170013307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:41:58,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:41:58,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-11 20:41:58,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376363471] [2024-11-11 20:41:58,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:41:58,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:41:58,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:41:58,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:41:58,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:41:58,493 INFO L87 Difference]: Start difference. First operand 429 states and 668 transitions. Second operand has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-11 20:42:00,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:00,607 INFO L93 Difference]: Finished difference Result 925 states and 1459 transitions. [2024-11-11 20:42:00,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 20:42:00,607 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 124 [2024-11-11 20:42:00,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:00,610 INFO L225 Difference]: With dead ends: 925 [2024-11-11 20:42:00,610 INFO L226 Difference]: Without dead ends: 523 [2024-11-11 20:42:00,612 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-11 20:42:00,613 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 1192 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 3600 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 1766 SdHoareTripleChecker+Invalid, 4013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 3600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:00,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1193 Valid, 1766 Invalid, 4013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 3600 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-11 20:42:00,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-11 20:42:00,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 429. [2024-11-11 20:42:00,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 332 states have (on average 1.5753012048192772) internal successors, (523), 338 states have internal predecessors, (523), 70 states have call successors, (70), 24 states have call predecessors, (70), 26 states have return successors, (74), 66 states have call predecessors, (74), 67 states have call successors, (74) [2024-11-11 20:42:00,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 667 transitions. [2024-11-11 20:42:00,638 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 667 transitions. Word has length 124 [2024-11-11 20:42:00,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:00,639 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 667 transitions. [2024-11-11 20:42:00,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.636363636363637) internal successors, (84), 8 states have internal predecessors, (84), 4 states have call successors, (18), 6 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-11 20:42:00,639 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 667 transitions. [2024-11-11 20:42:00,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-11 20:42:00,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:00,641 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:00,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 20:42:00,641 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:00,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:00,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1962283142, now seen corresponding path program 1 times [2024-11-11 20:42:00,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:00,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549956356] [2024-11-11 20:42:00,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:00,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:00,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:42:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:42:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:42:00,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:42:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:42:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:42:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:42:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 20:42:00,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 20:42:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 20:42:00,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-11 20:42:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:00,841 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-11 20:42:00,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:00,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549956356] [2024-11-11 20:42:00,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549956356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:00,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:00,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-11 20:42:00,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122667766] [2024-11-11 20:42:00,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:00,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-11 20:42:00,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:00,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-11 20:42:00,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:42:00,844 INFO L87 Difference]: Start difference. First operand 429 states and 667 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-11 20:42:02,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:02,826 INFO L93 Difference]: Finished difference Result 927 states and 1465 transitions. [2024-11-11 20:42:02,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 20:42:02,826 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 144 [2024-11-11 20:42:02,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:02,830 INFO L225 Difference]: With dead ends: 927 [2024-11-11 20:42:02,830 INFO L226 Difference]: Without dead ends: 525 [2024-11-11 20:42:02,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 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 20:42:02,832 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 1181 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 3707 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 4106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 3707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:02,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 1769 Invalid, 4106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 3707 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 20:42:02,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-11-11 20:42:02,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 431. [2024-11-11 20:42:02,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 333 states have (on average 1.5735735735735736) internal successors, (524), 340 states have internal predecessors, (524), 70 states have call successors, (70), 24 states have call predecessors, (70), 27 states have return successors, (79), 66 states have call predecessors, (79), 67 states have call successors, (79) [2024-11-11 20:42:02,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 673 transitions. [2024-11-11 20:42:02,855 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 673 transitions. Word has length 144 [2024-11-11 20:42:02,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:02,856 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 673 transitions. [2024-11-11 20:42:02,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) [2024-11-11 20:42:02,856 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 673 transitions. [2024-11-11 20:42:02,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-11 20:42:02,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:02,858 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:02,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 20:42:02,859 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:02,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:02,859 INFO L85 PathProgramCache]: Analyzing trace with hash -569808640, now seen corresponding path program 1 times [2024-11-11 20:42:02,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:02,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606300027] [2024-11-11 20:42:02,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:02,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:02,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:42:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:42:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:42:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:42:02,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:42:02,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:42:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:42:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 20:42:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 20:42:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-11 20:42:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-11 20:42:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-11 20:42:02,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:02,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606300027] [2024-11-11 20:42:02,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606300027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:42:02,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483360909] [2024-11-11 20:42:02,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:02,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:42:02,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:42:02,991 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 20:42:02,999 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 20:42:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:03,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:42:03,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:42:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-11 20:42:03,258 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:42:03,344 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-11 20:42:03,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483360909] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:42:03,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:42:03,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2024-11-11 20:42:03,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001907022] [2024-11-11 20:42:03,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:42:03,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-11 20:42:03,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:03,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-11 20:42:03,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:42:03,348 INFO L87 Difference]: Start difference. First operand 431 states and 673 transitions. Second operand has 11 states, 11 states have (on average 12.0) internal successors, (132), 7 states have internal predecessors, (132), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-11 20:42:04,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:04,636 INFO L93 Difference]: Finished difference Result 1114 states and 1834 transitions. [2024-11-11 20:42:04,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-11 20:42:04,637 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 7 states have internal predecessors, (132), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 145 [2024-11-11 20:42:04,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:04,641 INFO L225 Difference]: With dead ends: 1114 [2024-11-11 20:42:04,641 INFO L226 Difference]: Without dead ends: 942 [2024-11-11 20:42:04,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 321 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 20:42:04,642 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 1714 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1771 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 1950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:04,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1771 Valid, 1478 Invalid, 1950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 20:42:04,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2024-11-11 20:42:04,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 824. [2024-11-11 20:42:04,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 647 states have (on average 1.6336939721792891) internal successors, (1057), 654 states have internal predecessors, (1057), 149 states have call successors, (149), 24 states have call predecessors, (149), 27 states have return successors, (168), 145 states have call predecessors, (168), 146 states have call successors, (168) [2024-11-11 20:42:04,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1374 transitions. [2024-11-11 20:42:04,672 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1374 transitions. Word has length 145 [2024-11-11 20:42:04,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:04,673 INFO L471 AbstractCegarLoop]: Abstraction has 824 states and 1374 transitions. [2024-11-11 20:42:04,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 7 states have internal predecessors, (132), 2 states have call successors, (42), 6 states have call predecessors, (42), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-11 20:42:04,673 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1374 transitions. [2024-11-11 20:42:04,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-11 20:42:04,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:04,676 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:04,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-11 20:42:04,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:42:04,877 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:04,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:04,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1085753151, now seen corresponding path program 1 times [2024-11-11 20:42:04,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:04,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955134018] [2024-11-11 20:42:04,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:04,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:04,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:42:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:42:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:42:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:42:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:42:04,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:42:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:42:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 20:42:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:04,957 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:42:04,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:04,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955134018] [2024-11-11 20:42:04,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955134018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:04,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:04,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:42:04,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259409520] [2024-11-11 20:42:04,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:04,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:42:04,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:04,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:42:04,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:42:04,959 INFO L87 Difference]: Start difference. First operand 824 states and 1374 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:42:06,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:06,096 INFO L93 Difference]: Finished difference Result 2072 states and 3539 transitions. [2024-11-11 20:42:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:42:06,096 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-11 20:42:06,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:06,102 INFO L225 Difference]: With dead ends: 2072 [2024-11-11 20:42:06,102 INFO L226 Difference]: Without dead ends: 1316 [2024-11-11 20:42:06,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 20:42:06,105 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 1308 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:06,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 975 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:42:06,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2024-11-11 20:42:06,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1214. [2024-11-11 20:42:06,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 958 states have (on average 1.6461377870563674) internal successors, (1577), 965 states have internal predecessors, (1577), 228 states have call successors, (228), 24 states have call predecessors, (228), 27 states have return successors, (257), 224 states have call predecessors, (257), 225 states have call successors, (257) [2024-11-11 20:42:06,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 2062 transitions. [2024-11-11 20:42:06,150 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 2062 transitions. Word has length 132 [2024-11-11 20:42:06,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:06,150 INFO L471 AbstractCegarLoop]: Abstraction has 1214 states and 2062 transitions. [2024-11-11 20:42:06,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:42:06,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 2062 transitions. [2024-11-11 20:42:06,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-11 20:42:06,155 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:06,155 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:06,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 20:42:06,155 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:06,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:06,155 INFO L85 PathProgramCache]: Analyzing trace with hash -602922310, now seen corresponding path program 1 times [2024-11-11 20:42:06,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:06,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342230650] [2024-11-11 20:42:06,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:06,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:06,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:06,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:06,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:06,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:42:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:42:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:42:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:42:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:42:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:42:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:42:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 20:42:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-11 20:42:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 20:42:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 20:42:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:06,271 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-11 20:42:06,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:06,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342230650] [2024-11-11 20:42:06,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342230650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:06,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:06,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:42:06,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112165940] [2024-11-11 20:42:06,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:06,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:42:06,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:06,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:42:06,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:42:06,273 INFO L87 Difference]: Start difference. First operand 1214 states and 2062 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:42:07,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:07,404 INFO L93 Difference]: Finished difference Result 3021 states and 5213 transitions. [2024-11-11 20:42:07,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:42:07,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2024-11-11 20:42:07,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:07,415 INFO L225 Difference]: With dead ends: 3021 [2024-11-11 20:42:07,416 INFO L226 Difference]: Without dead ends: 1928 [2024-11-11 20:42:07,420 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 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 20:42:07,421 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 1303 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:07,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 934 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:42:07,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2024-11-11 20:42:07,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1826. [2024-11-11 20:42:07,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1451 states have (on average 1.6540317022742936) internal successors, (2400), 1458 states have internal predecessors, (2400), 347 states have call successors, (347), 24 states have call predecessors, (347), 27 states have return successors, (376), 343 states have call predecessors, (376), 344 states have call successors, (376) [2024-11-11 20:42:07,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 3123 transitions. [2024-11-11 20:42:07,492 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 3123 transitions. Word has length 152 [2024-11-11 20:42:07,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:07,492 INFO L471 AbstractCegarLoop]: Abstraction has 1826 states and 3123 transitions. [2024-11-11 20:42:07,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:42:07,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 3123 transitions. [2024-11-11 20:42:07,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-11 20:42:07,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:07,502 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:07,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 20:42:07,502 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:07,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:07,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1627588351, now seen corresponding path program 1 times [2024-11-11 20:42:07,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:07,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580989679] [2024-11-11 20:42:07,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:07,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:07,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:42:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:42:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:42:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:42:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:42:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:42:07,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 20:42:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 20:42:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:07,666 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:42:07,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:07,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580989679] [2024-11-11 20:42:07,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580989679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:07,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:07,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:42:07,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563136693] [2024-11-11 20:42:07,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:07,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:42:07,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:07,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:42:07,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:42:07,669 INFO L87 Difference]: Start difference. First operand 1826 states and 3123 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:42:09,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:09,060 INFO L93 Difference]: Finished difference Result 4446 states and 7747 transitions. [2024-11-11 20:42:09,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:42:09,061 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2024-11-11 20:42:09,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:09,077 INFO L225 Difference]: With dead ends: 4446 [2024-11-11 20:42:09,077 INFO L226 Difference]: Without dead ends: 2866 [2024-11-11 20:42:09,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 20:42:09,083 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 1292 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:09,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 933 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-11 20:42:09,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2024-11-11 20:42:09,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2764. [2024-11-11 20:42:09,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2227 states have (on average 1.6605298607992816) internal successors, (3698), 2234 states have internal predecessors, (3698), 509 states have call successors, (509), 24 states have call predecessors, (509), 27 states have return successors, (554), 505 states have call predecessors, (554), 506 states have call successors, (554) [2024-11-11 20:42:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 4761 transitions. [2024-11-11 20:42:09,207 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 4761 transitions. Word has length 134 [2024-11-11 20:42:09,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:09,207 INFO L471 AbstractCegarLoop]: Abstraction has 2764 states and 4761 transitions. [2024-11-11 20:42:09,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:42:09,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 4761 transitions. [2024-11-11 20:42:09,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-11 20:42:09,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:09,216 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:09,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 20:42:09,217 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:09,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:09,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1573696069, now seen corresponding path program 1 times [2024-11-11 20:42:09,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:09,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367239993] [2024-11-11 20:42:09,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:09,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:09,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:09,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:42:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:42:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-11 20:42:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:42:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:42:09,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:42:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-11 20:42:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 20:42:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-11 20:42:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-11 20:42:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-11 20:42:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:09,341 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-11 20:42:09,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:09,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367239993] [2024-11-11 20:42:09,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367239993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:09,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:09,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:42:09,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472488730] [2024-11-11 20:42:09,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:09,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:42:09,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:09,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:42:09,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:42:09,347 INFO L87 Difference]: Start difference. First operand 2764 states and 4761 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:42:10,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:10,522 INFO L93 Difference]: Finished difference Result 6695 states and 11756 transitions. [2024-11-11 20:42:10,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:42:10,522 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 154 [2024-11-11 20:42:10,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:10,540 INFO L225 Difference]: With dead ends: 6695 [2024-11-11 20:42:10,540 INFO L226 Difference]: Without dead ends: 4381 [2024-11-11 20:42:10,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 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 20:42:10,546 INFO L435 NwaCegarLoop]: 203 mSDtfsCounter, 1304 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:10,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 933 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 20:42:10,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4381 states. [2024-11-11 20:42:10,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4381 to 4279. [2024-11-11 20:42:10,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4279 states, 3497 states have (on average 1.6651415498999143) internal successors, (5823), 3504 states have internal predecessors, (5823), 754 states have call successors, (754), 24 states have call predecessors, (754), 27 states have return successors, (825), 750 states have call predecessors, (825), 751 states have call successors, (825) [2024-11-11 20:42:10,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4279 states to 4279 states and 7402 transitions. [2024-11-11 20:42:10,668 INFO L78 Accepts]: Start accepts. Automaton has 4279 states and 7402 transitions. Word has length 154 [2024-11-11 20:42:10,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:10,669 INFO L471 AbstractCegarLoop]: Abstraction has 4279 states and 7402 transitions. [2024-11-11 20:42:10,669 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:42:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 4279 states and 7402 transitions. [2024-11-11 20:42:10,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-11 20:42:10,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:10,680 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:10,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 20:42:10,680 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:10,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:10,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1541164773, now seen corresponding path program 1 times [2024-11-11 20:42:10,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:10,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822520897] [2024-11-11 20:42:10,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:10,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:42:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:42:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-11 20:42:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:42:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:42:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-11 20:42:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 20:42:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-11 20:42:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 20:42:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-11 20:42:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-11 20:42:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-11 20:42:10,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:10,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822520897] [2024-11-11 20:42:10,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822520897] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:10,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:10,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:42:10,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158062540] [2024-11-11 20:42:10,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:10,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:42:10,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:10,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:42:10,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:42:10,769 INFO L87 Difference]: Start difference. First operand 4279 states and 7402 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:42:11,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:11,902 INFO L93 Difference]: Finished difference Result 10711 states and 18868 transitions. [2024-11-11 20:42:11,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:42:11,903 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 155 [2024-11-11 20:42:11,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:11,931 INFO L225 Difference]: With dead ends: 10711 [2024-11-11 20:42:11,932 INFO L226 Difference]: Without dead ends: 7114 [2024-11-11 20:42:11,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 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 20:42:11,943 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 1301 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:11,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 971 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 20:42:11,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7114 states. [2024-11-11 20:42:12,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7114 to 7012. [2024-11-11 20:42:12,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7012 states, 5737 states have (on average 1.66079832665156) internal successors, (9528), 5744 states have internal predecessors, (9528), 1247 states have call successors, (1247), 24 states have call predecessors, (1247), 27 states have return successors, (1362), 1243 states have call predecessors, (1362), 1244 states have call successors, (1362) [2024-11-11 20:42:12,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7012 states to 7012 states and 12137 transitions. [2024-11-11 20:42:12,277 INFO L78 Accepts]: Start accepts. Automaton has 7012 states and 12137 transitions. Word has length 155 [2024-11-11 20:42:12,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:12,277 INFO L471 AbstractCegarLoop]: Abstraction has 7012 states and 12137 transitions. [2024-11-11 20:42:12,282 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:42:12,282 INFO L276 IsEmpty]: Start isEmpty. Operand 7012 states and 12137 transitions. [2024-11-11 20:42:12,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-11 20:42:12,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:12,299 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:12,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-11 20:42:12,300 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:12,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:12,300 INFO L85 PathProgramCache]: Analyzing trace with hash 2056384095, now seen corresponding path program 1 times [2024-11-11 20:42:12,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:12,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858591315] [2024-11-11 20:42:12,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:12,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:12,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:12,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:42:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:42:12,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:42:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:42:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:42:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 20:42:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-11 20:42:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-11 20:42:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:12,386 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:42:12,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:12,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858591315] [2024-11-11 20:42:12,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858591315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:12,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:12,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:42:12,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428501608] [2024-11-11 20:42:12,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:12,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:42:12,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:12,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:42:12,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:42:12,388 INFO L87 Difference]: Start difference. First operand 7012 states and 12137 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:42:13,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:13,631 INFO L93 Difference]: Finished difference Result 17851 states and 31440 transitions. [2024-11-11 20:42:13,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:42:13,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2024-11-11 20:42:13,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:13,670 INFO L225 Difference]: With dead ends: 17851 [2024-11-11 20:42:13,670 INFO L226 Difference]: Without dead ends: 11898 [2024-11-11 20:42:13,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 20:42:13,690 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 1297 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:13,690 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1316 Valid, 933 Invalid, 1650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 20:42:13,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11898 states. [2024-11-11 20:42:14,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11898 to 11796. [2024-11-11 20:42:14,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11796 states, 9699 states have (on average 1.660583565316012) internal successors, (16106), 9706 states have internal predecessors, (16106), 2069 states have call successors, (2069), 24 states have call predecessors, (2069), 27 states have return successors, (2262), 2065 states have call predecessors, (2262), 2066 states have call successors, (2262) [2024-11-11 20:42:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11796 states to 11796 states and 20437 transitions. [2024-11-11 20:42:14,093 INFO L78 Accepts]: Start accepts. Automaton has 11796 states and 20437 transitions. Word has length 137 [2024-11-11 20:42:14,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:14,094 INFO L471 AbstractCegarLoop]: Abstraction has 11796 states and 20437 transitions. [2024-11-11 20:42:14,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:42:14,094 INFO L276 IsEmpty]: Start isEmpty. Operand 11796 states and 20437 transitions. [2024-11-11 20:42:14,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-11 20:42:14,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:14,123 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:14,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-11 20:42:14,124 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:14,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:14,124 INFO L85 PathProgramCache]: Analyzing trace with hash 458487873, now seen corresponding path program 1 times [2024-11-11 20:42:14,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:14,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277048546] [2024-11-11 20:42:14,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:14,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:42:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:42:14,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:42:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:42:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:42:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 20:42:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 20:42:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 20:42:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:14,263 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:42:14,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:14,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277048546] [2024-11-11 20:42:14,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277048546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:14,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:14,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:42:14,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51557971] [2024-11-11 20:42:14,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:14,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:42:14,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:14,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:42:14,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:42:14,265 INFO L87 Difference]: Start difference. First operand 11796 states and 20437 transitions. Second operand has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:42:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:15,745 INFO L93 Difference]: Finished difference Result 28284 states and 49565 transitions. [2024-11-11 20:42:15,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:42:15,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2024-11-11 20:42:15,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:15,809 INFO L225 Difference]: With dead ends: 28284 [2024-11-11 20:42:15,810 INFO L226 Difference]: Without dead ends: 18491 [2024-11-11 20:42:15,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 20:42:15,842 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 1287 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:15,842 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 915 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [437 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 20:42:15,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18491 states. [2024-11-11 20:42:16,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18491 to 18389. [2024-11-11 20:42:16,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18389 states, 15089 states have (on average 1.6350984160646829) internal successors, (24672), 15096 states have internal predecessors, (24672), 3272 states have call successors, (3272), 24 states have call predecessors, (3272), 27 states have return successors, (3609), 3268 states have call predecessors, (3609), 3269 states have call successors, (3609) [2024-11-11 20:42:16,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18389 states to 18389 states and 31553 transitions. [2024-11-11 20:42:16,367 INFO L78 Accepts]: Start accepts. Automaton has 18389 states and 31553 transitions. Word has length 138 [2024-11-11 20:42:16,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:16,369 INFO L471 AbstractCegarLoop]: Abstraction has 18389 states and 31553 transitions. [2024-11-11 20:42:16,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:42:16,369 INFO L276 IsEmpty]: Start isEmpty. Operand 18389 states and 31553 transitions. [2024-11-11 20:42:16,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-11 20:42:16,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:16,390 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:16,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-11 20:42:16,390 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:16,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:16,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1005275200, now seen corresponding path program 1 times [2024-11-11 20:42:16,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:16,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551453034] [2024-11-11 20:42:16,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:16,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:16,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:16,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:42:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:42:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:42:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:42:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:42:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-11 20:42:16,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-11 20:42:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-11 20:42:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-11 20:42:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 20:42:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-11 20:42:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:16,503 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-11 20:42:16,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:16,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551453034] [2024-11-11 20:42:16,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551453034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:16,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:16,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:42:16,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841826536] [2024-11-11 20:42:16,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:16,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:42:16,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:16,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:42:16,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:42:16,505 INFO L87 Difference]: Start difference. First operand 18389 states and 31553 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:42:18,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:18,040 INFO L93 Difference]: Finished difference Result 48706 states and 85069 transitions. [2024-11-11 20:42:18,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:42:18,041 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 158 [2024-11-11 20:42:18,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:18,160 INFO L225 Difference]: With dead ends: 48706 [2024-11-11 20:42:18,160 INFO L226 Difference]: Without dead ends: 32927 [2024-11-11 20:42:18,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 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 20:42:18,197 INFO L435 NwaCegarLoop]: 202 mSDtfsCounter, 1288 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 933 SdHoareTripleChecker+Invalid, 1664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:18,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 933 Invalid, 1664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-11 20:42:18,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32927 states. [2024-11-11 20:42:19,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32927 to 32825. [2024-11-11 20:42:19,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32825 states, 27075 states have (on average 1.6317266851338874) internal successors, (44179), 27082 states have internal predecessors, (44179), 5722 states have call successors, (5722), 24 states have call predecessors, (5722), 27 states have return successors, (6333), 5718 states have call predecessors, (6333), 5719 states have call successors, (6333) [2024-11-11 20:42:19,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32825 states to 32825 states and 56234 transitions. [2024-11-11 20:42:19,646 INFO L78 Accepts]: Start accepts. Automaton has 32825 states and 56234 transitions. Word has length 158 [2024-11-11 20:42:19,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:19,646 INFO L471 AbstractCegarLoop]: Abstraction has 32825 states and 56234 transitions. [2024-11-11 20:42:19,646 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:42:19,647 INFO L276 IsEmpty]: Start isEmpty. Operand 32825 states and 56234 transitions. [2024-11-11 20:42:19,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-11 20:42:19,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:19,675 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:19,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-11 20:42:19,676 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:19,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:19,676 INFO L85 PathProgramCache]: Analyzing trace with hash -818469753, now seen corresponding path program 1 times [2024-11-11 20:42:19,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:19,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205035412] [2024-11-11 20:42:19,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:19,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:19,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:19,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:19,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:19,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:42:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:42:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:42:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:42:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-11 20:42:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-11 20:42:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 20:42:19,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 20:42:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:19,759 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:42:19,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:19,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205035412] [2024-11-11 20:42:19,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205035412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:19,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:19,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:42:19,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700033794] [2024-11-11 20:42:19,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:19,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:42:19,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:19,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:42:19,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:42:19,762 INFO L87 Difference]: Start difference. First operand 32825 states and 56234 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:42:22,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:22,189 INFO L93 Difference]: Finished difference Result 89603 states and 155703 transitions. [2024-11-11 20:42:22,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:42:22,190 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2024-11-11 20:42:22,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:22,397 INFO L225 Difference]: With dead ends: 89603 [2024-11-11 20:42:22,397 INFO L226 Difference]: Without dead ends: 60264 [2024-11-11 20:42:22,463 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 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 20:42:22,464 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 1288 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:22,464 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 952 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-11 20:42:22,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60264 states. [2024-11-11 20:42:24,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60264 to 60162. [2024-11-11 20:42:24,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60162 states, 49899 states have (on average 1.6273272009459108) internal successors, (81202), 49906 states have internal predecessors, (81202), 10235 states have call successors, (10235), 24 states have call predecessors, (10235), 27 states have return successors, (11378), 10231 states have call predecessors, (11378), 10232 states have call successors, (11378) [2024-11-11 20:42:24,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60162 states to 60162 states and 102815 transitions. [2024-11-11 20:42:24,618 INFO L78 Accepts]: Start accepts. Automaton has 60162 states and 102815 transitions. Word has length 140 [2024-11-11 20:42:24,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:24,619 INFO L471 AbstractCegarLoop]: Abstraction has 60162 states and 102815 transitions. [2024-11-11 20:42:24,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:42:24,620 INFO L276 IsEmpty]: Start isEmpty. Operand 60162 states and 102815 transitions. [2024-11-11 20:42:24,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-11 20:42:24,658 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:24,658 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:24,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-11 20:42:24,659 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:24,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:24,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1846084864, now seen corresponding path program 1 times [2024-11-11 20:42:24,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:24,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26424828] [2024-11-11 20:42:24,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:24,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:42:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:42:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:42:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:42:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:42:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-11 20:42:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 20:42:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-11-11 20:42:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-11 20:42:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-11 20:42:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-11 20:42:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:25,111 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-11 20:42:25,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:25,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26424828] [2024-11-11 20:42:25,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26424828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:25,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:25,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:42:25,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805023621] [2024-11-11 20:42:25,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:25,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:42:25,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:25,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:42:25,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:42:25,113 INFO L87 Difference]: Start difference. First operand 60162 states and 102815 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:42:28,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:28,161 INFO L93 Difference]: Finished difference Result 112694 states and 196281 transitions. [2024-11-11 20:42:28,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:42:28,162 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 160 [2024-11-11 20:42:28,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:28,783 INFO L225 Difference]: With dead ends: 112694 [2024-11-11 20:42:28,784 INFO L226 Difference]: Without dead ends: 112522 [2024-11-11 20:42:28,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 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 20:42:28,820 INFO L435 NwaCegarLoop]: 206 mSDtfsCounter, 1278 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:28,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 944 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-11 20:42:28,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112522 states. [2024-11-11 20:42:32,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112522 to 112420. [2024-11-11 20:42:32,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112420 states, 93789 states have (on average 1.6218213223299107) internal successors, (152109), 93796 states have internal predecessors, (152109), 18603 states have call successors, (18603), 24 states have call predecessors, (18603), 27 states have return successors, (20792), 18599 states have call predecessors, (20792), 18600 states have call successors, (20792) [2024-11-11 20:42:33,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112420 states to 112420 states and 191504 transitions. [2024-11-11 20:42:33,197 INFO L78 Accepts]: Start accepts. Automaton has 112420 states and 191504 transitions. Word has length 160 [2024-11-11 20:42:33,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:33,198 INFO L471 AbstractCegarLoop]: Abstraction has 112420 states and 191504 transitions. [2024-11-11 20:42:33,198 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, (21), 6 states have call predecessors, (21), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:42:33,198 INFO L276 IsEmpty]: Start isEmpty. Operand 112420 states and 191504 transitions. [2024-11-11 20:42:33,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-11 20:42:33,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:33,237 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:33,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-11 20:42:33,238 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:33,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:33,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2068775894, now seen corresponding path program 1 times [2024-11-11 20:42:33,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:33,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156571202] [2024-11-11 20:42:33,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:33,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:33,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:33,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:42:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:42:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:42:33,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:42:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:42:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:42:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-11 20:42:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-11 20:42:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-11 20:42:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-11 20:42:33,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-11 20:42:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:33,381 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-11 20:42:33,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:33,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156571202] [2024-11-11 20:42:33,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156571202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:33,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:33,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-11 20:42:33,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433814716] [2024-11-11 20:42:33,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:33,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 20:42:33,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:33,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 20:42:33,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:42:33,383 INFO L87 Difference]: Start difference. First operand 112420 states and 191504 transitions. Second operand has 10 states, 10 states have (on average 10.4) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:42:40,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:42:40,860 INFO L93 Difference]: Finished difference Result 216520 states and 376673 transitions. [2024-11-11 20:42:40,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-11 20:42:40,861 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 161 [2024-11-11 20:42:40,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:42:41,683 INFO L225 Difference]: With dead ends: 216520 [2024-11-11 20:42:41,683 INFO L226 Difference]: Without dead ends: 216356 [2024-11-11 20:42:41,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=428, Unknown=0, NotChecked=0, Total=600 [2024-11-11 20:42:41,756 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 2656 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 2843 mSolverCounterSat, 834 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2673 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 3677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 834 IncrementalHoareTripleChecker+Valid, 2843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:42:41,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2673 Valid, 1644 Invalid, 3677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [834 Valid, 2843 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 20:42:41,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216356 states. [2024-11-11 20:42:49,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216356 to 216160. [2024-11-11 20:42:49,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216160 states, 180403 states have (on average 1.625327738452243) internal successors, (293214), 180356 states have internal predecessors, (293214), 35706 states have call successors, (35706), 46 states have call predecessors, (35706), 50 states have return successors, (38987), 35757 states have call predecessors, (38987), 35702 states have call successors, (38987) [2024-11-11 20:42:50,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216160 states to 216160 states and 367907 transitions. [2024-11-11 20:42:50,349 INFO L78 Accepts]: Start accepts. Automaton has 216160 states and 367907 transitions. Word has length 161 [2024-11-11 20:42:50,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:42:50,350 INFO L471 AbstractCegarLoop]: Abstraction has 216160 states and 367907 transitions. [2024-11-11 20:42:50,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.4) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (21), 7 states have call predecessors, (21), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:42:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 216160 states and 367907 transitions. [2024-11-11 20:42:50,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-11 20:42:50,415 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:42:50,415 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:42:50,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-11 20:42:50,415 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:42:50,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:42:50,416 INFO L85 PathProgramCache]: Analyzing trace with hash 290111752, now seen corresponding path program 1 times [2024-11-11 20:42:50,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:42:50,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002812575] [2024-11-11 20:42:50,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:42:50,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:42:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-11 20:42:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:42:50,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:42:50,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:42:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-11 20:42:50,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:42:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:42:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:42:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:42:50,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:42:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 20:42:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 20:42:50,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-11 20:42:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-11 20:42:50,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:42:50,607 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-11 20:42:50,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:42:50,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002812575] [2024-11-11 20:42:50,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002812575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:42:50,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:42:50,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-11 20:42:50,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699249295] [2024-11-11 20:42:50,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:42:50,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 20:42:50,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:42:50,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 20:42:50,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:42:50,609 INFO L87 Difference]: Start difference. First operand 216160 states and 367907 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (18), 7 states have call predecessors, (18), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14)