./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec13_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec13_product29.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 63ce65fdf446745f64534f105010543d07f1d807cf17249eadefb49fdfafb832 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:39:44,876 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:39:44,919 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:39:44,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:39:44,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:39:44,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:39:44,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:39:44,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:39:44,945 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:39:44,945 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:39:44,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:39:44,946 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:39:44,946 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:39:44,946 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:39:44,947 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:39:44,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:39:44,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:39:44,947 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:39:44,947 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:39:44,947 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:39:44,947 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:39:44,947 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:39:44,948 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:39:44,948 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:39:44,948 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:39:44,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:39:44,948 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:39:44,948 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:39:44,948 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:39:44,948 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:39:44,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:39:44,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:39:44,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:39:44,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:39:44,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:39:44,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:39:44,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:39:44,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:39:44,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:39:44,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:39:44,950 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:39:44,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:39:44,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:39:44,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:39:44,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:39:44,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:39:44,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:39:44,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:39:44,950 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 63ce65fdf446745f64534f105010543d07f1d807cf17249eadefb49fdfafb832 [2025-01-09 03:39:45,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:39:45,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:39:45,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:39:45,157 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:39:45,157 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:39:45,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product29.cil.c [2025-01-09 03:39:46,272 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ab44ca092/5215ada074d9412c8ae80153b8e79f49/FLAG08d09780b [2025-01-09 03:39:46,740 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:39:46,740 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product29.cil.c [2025-01-09 03:39:46,762 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ab44ca092/5215ada074d9412c8ae80153b8e79f49/FLAG08d09780b [2025-01-09 03:39:46,777 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ab44ca092/5215ada074d9412c8ae80153b8e79f49 [2025-01-09 03:39:46,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:39:46,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:39:46,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:39:46,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:39:46,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:39:46,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:39:46" (1/1) ... [2025-01-09 03:39:46,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a639896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:46, skipping insertion in model container [2025-01-09 03:39:46,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:39:46" (1/1) ... [2025-01-09 03:39:46,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:39:47,119 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product29.cil.c[54440,54453] [2025-01-09 03:39:47,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:39:47,203 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:39:47,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2025-01-09 03:39:47,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [716] [2025-01-09 03:39:47,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [736] [2025-01-09 03:39:47,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [857] [2025-01-09 03:39:47,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [2398] [2025-01-09 03:39:47,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2488] [2025-01-09 03:39:47,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2497] [2025-01-09 03:39:47,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2589] [2025-01-09 03:39:47,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2940] [2025-01-09 03:39:47,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2975] [2025-01-09 03:39:47,282 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product29.cil.c[54440,54453] [2025-01-09 03:39:47,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:39:47,331 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:39:47,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47 WrapperNode [2025-01-09 03:39:47,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:39:47,332 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:39:47,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:39:47,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:39:47,337 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,362 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,396 INFO L138 Inliner]: procedures = 91, calls = 340, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 858 [2025-01-09 03:39:47,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:39:47,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:39:47,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:39:47,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:39:47,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,419 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,447 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2025-01-09 03:39:47,447 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,461 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,469 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:39:47,504 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:39:47,504 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:39:47,504 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:39:47,505 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (1/1) ... [2025-01-09 03:39:47,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:39:47,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:47,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 03:39:47,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 03:39:47,549 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2025-01-09 03:39:47,549 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2025-01-09 03:39:47,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:39:47,550 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2025-01-09 03:39:47,550 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2025-01-09 03:39:47,550 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-01-09 03:39:47,550 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-01-09 03:39:47,550 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2025-01-09 03:39:47,551 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2025-01-09 03:39:47,551 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-01-09 03:39:47,551 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-01-09 03:39:47,551 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-01-09 03:39:47,551 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-01-09 03:39:47,551 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2025-01-09 03:39:47,551 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2025-01-09 03:39:47,551 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-01-09 03:39:47,552 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-01-09 03:39:47,552 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2025-01-09 03:39:47,552 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2025-01-09 03:39:47,552 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 03:39:47,552 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 03:39:47,552 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 03:39:47,552 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 03:39:47,552 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-01-09 03:39:47,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-01-09 03:39:47,552 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-01-09 03:39:47,552 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-01-09 03:39:47,553 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-01-09 03:39:47,553 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-01-09 03:39:47,553 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-01-09 03:39:47,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-01-09 03:39:47,553 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-01-09 03:39:47,553 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-01-09 03:39:47,553 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-01-09 03:39:47,553 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-01-09 03:39:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-01-09 03:39:47,554 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-01-09 03:39:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-01-09 03:39:47,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-01-09 03:39:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-01-09 03:39:47,554 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-01-09 03:39:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:39:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 03:39:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 03:39:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 03:39:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 03:39:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 03:39:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 03:39:47,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 03:39:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 03:39:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 03:39:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 03:39:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 03:39:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 03:39:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 03:39:47,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 03:39:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 03:39:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 03:39:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-09 03:39:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-09 03:39:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-01-09 03:39:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2025-01-09 03:39:47,556 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2025-01-09 03:39:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-01-09 03:39:47,556 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-01-09 03:39:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-01-09 03:39:47,556 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-01-09 03:39:47,556 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-01-09 03:39:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-01-09 03:39:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:39:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:39:47,557 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-01-09 03:39:47,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-01-09 03:39:47,679 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:39:47,681 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:39:48,750 INFO L? ?]: Removed 472 outVars from TransFormulas that were not future-live. [2025-01-09 03:39:48,751 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:39:48,765 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:39:48,765 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2025-01-09 03:39:48,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:39:48 BoogieIcfgContainer [2025-01-09 03:39:48,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:39:48,767 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:39:48,767 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:39:48,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:39:48,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:39:46" (1/3) ... [2025-01-09 03:39:48,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9ab600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:39:48, skipping insertion in model container [2025-01-09 03:39:48,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:39:47" (2/3) ... [2025-01-09 03:39:48,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9ab600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:39:48, skipping insertion in model container [2025-01-09 03:39:48,770 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:39:48" (3/3) ... [2025-01-09 03:39:48,771 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product29.cil.c [2025-01-09 03:39:48,780 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:39:48,782 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec13_product29.cil.c that has 26 procedures, 597 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-01-09 03:39:48,857 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:39:48,875 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;@1afa99ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:39:48,875 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:39:48,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 597 states, 470 states have (on average 1.6914893617021276) internal successors, (795), 488 states have internal predecessors, (795), 100 states have call successors, (100), 25 states have call predecessors, (100), 25 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-01-09 03:39:48,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-01-09 03:39:48,914 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:48,915 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:48,915 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:48,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:48,923 INFO L85 PathProgramCache]: Analyzing trace with hash 227969146, now seen corresponding path program 1 times [2025-01-09 03:39:48,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:48,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969060600] [2025-01-09 03:39:48,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:48,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:49,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-01-09 03:39:49,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-01-09 03:39:49,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:49,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:49,588 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:39:49,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:49,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969060600] [2025-01-09 03:39:49,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969060600] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:49,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430056219] [2025-01-09 03:39:49,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:49,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:49,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:49,592 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:49,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 03:39:49,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-01-09 03:39:49,917 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-01-09 03:39:49,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:49,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:49,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:39:49,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:49,970 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:39:49,970 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:49,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430056219] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:49,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:49,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-01-09 03:39:49,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086885221] [2025-01-09 03:39:49,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:49,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:39:49,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:49,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:39:49,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:39:49,989 INFO L87 Difference]: Start difference. First operand has 597 states, 470 states have (on average 1.6914893617021276) internal successors, (795), 488 states have internal predecessors, (795), 100 states have call successors, (100), 25 states have call predecessors, (100), 25 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:39:50,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:50,142 INFO L93 Difference]: Finished difference Result 1193 states and 2006 transitions. [2025-01-09 03:39:50,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:39:50,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2025-01-09 03:39:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:50,157 INFO L225 Difference]: With dead ends: 1193 [2025-01-09 03:39:50,157 INFO L226 Difference]: Without dead ends: 596 [2025-01-09 03:39:50,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:39:50,164 INFO L435 NwaCegarLoop]: 974 mSDtfsCounter, 17 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2914 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:50,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2914 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:39:50,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2025-01-09 03:39:50,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2025-01-09 03:39:50,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 471 states have (on average 1.683651804670913) internal successors, (793), 487 states have internal predecessors, (793), 100 states have call successors, (100), 26 states have call predecessors, (100), 24 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:39:50,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 990 transitions. [2025-01-09 03:39:50,234 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 990 transitions. Word has length 114 [2025-01-09 03:39:50,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:50,234 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 990 transitions. [2025-01-09 03:39:50,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:39:50,234 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 990 transitions. [2025-01-09 03:39:50,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-01-09 03:39:50,242 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:50,242 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:50,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 03:39:50,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 03:39:50,443 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:50,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:50,444 INFO L85 PathProgramCache]: Analyzing trace with hash 902537412, now seen corresponding path program 1 times [2025-01-09 03:39:50,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:50,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900256741] [2025-01-09 03:39:50,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:50,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:50,478 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 03:39:50,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 03:39:50,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:50,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:50,767 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:39:50,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:50,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900256741] [2025-01-09 03:39:50,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900256741] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:50,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645067695] [2025-01-09 03:39:50,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:50,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:50,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:50,772 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:50,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 03:39:50,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 03:39:51,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 03:39:51,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:51,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:51,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:39:51,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:51,081 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 03:39:51,082 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:51,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645067695] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:51,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:51,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2025-01-09 03:39:51,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226937309] [2025-01-09 03:39:51,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:51,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:39:51,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:51,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:39:51,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:39:51,083 INFO L87 Difference]: Start difference. First operand 596 states and 990 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:39:51,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:51,402 INFO L93 Difference]: Finished difference Result 1245 states and 2084 transitions. [2025-01-09 03:39:51,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:39:51,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2025-01-09 03:39:51,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:51,409 INFO L225 Difference]: With dead ends: 1245 [2025-01-09 03:39:51,413 INFO L226 Difference]: Without dead ends: 659 [2025-01-09 03:39:51,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:39:51,417 INFO L435 NwaCegarLoop]: 951 mSDtfsCounter, 122 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:51,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 2776 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:39:51,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2025-01-09 03:39:51,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 641. [2025-01-09 03:39:51,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 515 states have (on average 1.7029126213592234) internal successors, (877), 531 states have internal predecessors, (877), 100 states have call successors, (100), 27 states have call predecessors, (100), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:39:51,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 1074 transitions. [2025-01-09 03:39:51,445 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 1074 transitions. Word has length 116 [2025-01-09 03:39:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:51,446 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 1074 transitions. [2025-01-09 03:39:51,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:39:51,446 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 1074 transitions. [2025-01-09 03:39:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-01-09 03:39:51,451 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:51,451 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:51,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 03:39:51,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:51,652 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:51,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:51,654 INFO L85 PathProgramCache]: Analyzing trace with hash 127906216, now seen corresponding path program 1 times [2025-01-09 03:39:51,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:51,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788802558] [2025-01-09 03:39:51,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:51,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:51,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-01-09 03:39:51,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-01-09 03:39:51,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:51,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:51,848 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:39:51,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:51,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788802558] [2025-01-09 03:39:51,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788802558] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:51,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155536875] [2025-01-09 03:39:51,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:51,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:51,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:51,853 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:51,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 03:39:51,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-01-09 03:39:52,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-01-09 03:39:52,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:52,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:52,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 1387 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:39:52,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 03:39:52,136 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:52,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155536875] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:52,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:52,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-01-09 03:39:52,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640604886] [2025-01-09 03:39:52,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:52,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:39:52,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:52,137 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:39:52,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:39:52,138 INFO L87 Difference]: Start difference. First operand 641 states and 1074 transitions. Second operand has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:52,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:52,252 INFO L93 Difference]: Finished difference Result 1297 states and 2175 transitions. [2025-01-09 03:39:52,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:39:52,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 118 [2025-01-09 03:39:52,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:52,259 INFO L225 Difference]: With dead ends: 1297 [2025-01-09 03:39:52,260 INFO L226 Difference]: Without dead ends: 666 [2025-01-09 03:39:52,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:39:52,266 INFO L435 NwaCegarLoop]: 963 mSDtfsCounter, 89 mSDsluCounter, 4723 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5686 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:52,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5686 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:39:52,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2025-01-09 03:39:52,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 654. [2025-01-09 03:39:52,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 525 states have (on average 1.6990476190476191) internal successors, (892), 543 states have internal predecessors, (892), 101 states have call successors, (101), 27 states have call predecessors, (101), 27 states have return successors, (102), 96 states have call predecessors, (102), 98 states have call successors, (102) [2025-01-09 03:39:52,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1095 transitions. [2025-01-09 03:39:52,311 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1095 transitions. Word has length 118 [2025-01-09 03:39:52,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:52,311 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 1095 transitions. [2025-01-09 03:39:52,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:52,312 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1095 transitions. [2025-01-09 03:39:52,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-01-09 03:39:52,318 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:52,318 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:52,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 03:39:52,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:52,519 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:52,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:52,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1560515739, now seen corresponding path program 1 times [2025-01-09 03:39:52,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:52,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199944324] [2025-01-09 03:39:52,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:52,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:52,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-01-09 03:39:52,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-01-09 03:39:52,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:52,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:52,825 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:39:52,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:52,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199944324] [2025-01-09 03:39:52,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199944324] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:52,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617266605] [2025-01-09 03:39:52,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:52,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:52,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:52,828 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:52,832 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 03:39:52,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-01-09 03:39:53,045 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-01-09 03:39:53,045 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:53,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:53,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:39:53,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:53,105 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 03:39:53,105 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:53,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617266605] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:53,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:53,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-01-09 03:39:53,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742415768] [2025-01-09 03:39:53,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:53,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:39:53,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:53,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:39:53,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:39:53,110 INFO L87 Difference]: Start difference. First operand 654 states and 1095 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:53,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:53,293 INFO L93 Difference]: Finished difference Result 1317 states and 2206 transitions. [2025-01-09 03:39:53,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:39:53,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 119 [2025-01-09 03:39:53,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:53,306 INFO L225 Difference]: With dead ends: 1317 [2025-01-09 03:39:53,306 INFO L226 Difference]: Without dead ends: 675 [2025-01-09 03:39:53,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:39:53,311 INFO L435 NwaCegarLoop]: 963 mSDtfsCounter, 100 mSDsluCounter, 4711 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5674 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:53,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5674 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:39:53,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2025-01-09 03:39:53,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 654. [2025-01-09 03:39:53,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 525 states have (on average 1.6990476190476191) internal successors, (892), 543 states have internal predecessors, (892), 101 states have call successors, (101), 27 states have call predecessors, (101), 27 states have return successors, (102), 96 states have call predecessors, (102), 98 states have call successors, (102) [2025-01-09 03:39:53,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1095 transitions. [2025-01-09 03:39:53,356 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1095 transitions. Word has length 119 [2025-01-09 03:39:53,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:53,356 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 1095 transitions. [2025-01-09 03:39:53,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:53,356 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1095 transitions. [2025-01-09 03:39:53,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-01-09 03:39:53,359 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:53,359 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:53,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 03:39:53,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:53,560 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:53,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:53,561 INFO L85 PathProgramCache]: Analyzing trace with hash 766987575, now seen corresponding path program 1 times [2025-01-09 03:39:53,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:53,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303789507] [2025-01-09 03:39:53,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:53,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:53,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-01-09 03:39:53,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-01-09 03:39:53,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:53,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-09 03:39:53,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:53,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303789507] [2025-01-09 03:39:53,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303789507] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:53,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550476807] [2025-01-09 03:39:53,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:53,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:53,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:53,742 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:53,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 03:39:53,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-01-09 03:39:53,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-01-09 03:39:53,963 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:53,963 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:53,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:39:53,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:53,989 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:39:53,993 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:53,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550476807] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:53,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:53,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:39:53,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847682854] [2025-01-09 03:39:53,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:53,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:39:53,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:53,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:39:53,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:39:53,995 INFO L87 Difference]: Start difference. First operand 654 states and 1095 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:39:54,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:54,073 INFO L93 Difference]: Finished difference Result 1311 states and 2196 transitions. [2025-01-09 03:39:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:39:54,075 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 119 [2025-01-09 03:39:54,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:54,080 INFO L225 Difference]: With dead ends: 1311 [2025-01-09 03:39:54,080 INFO L226 Difference]: Without dead ends: 665 [2025-01-09 03:39:54,083 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:39:54,083 INFO L435 NwaCegarLoop]: 964 mSDtfsCounter, 12 mSDsluCounter, 1919 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:54,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2883 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:39:54,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2025-01-09 03:39:54,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 663. [2025-01-09 03:39:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 533 states have (on average 1.6904315196998123) internal successors, (901), 551 states have internal predecessors, (901), 101 states have call successors, (101), 28 states have call predecessors, (101), 28 states have return successors, (101), 96 states have call predecessors, (101), 98 states have call successors, (101) [2025-01-09 03:39:54,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1103 transitions. [2025-01-09 03:39:54,107 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1103 transitions. Word has length 119 [2025-01-09 03:39:54,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:54,108 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 1103 transitions. [2025-01-09 03:39:54,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:39:54,108 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1103 transitions. [2025-01-09 03:39:54,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-01-09 03:39:54,110 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:54,110 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:54,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 03:39:54,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:54,311 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:54,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:54,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1728181924, now seen corresponding path program 1 times [2025-01-09 03:39:54,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:54,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475110333] [2025-01-09 03:39:54,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:54,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:54,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-01-09 03:39:54,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-01-09 03:39:54,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:54,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:54,463 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:39:54,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:54,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475110333] [2025-01-09 03:39:54,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475110333] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:54,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018622249] [2025-01-09 03:39:54,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:54,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:54,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:54,466 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:54,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 03:39:54,569 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-01-09 03:39:54,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-01-09 03:39:54,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:54,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:54,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 1389 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:39:54,683 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:54,731 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 03:39:54,731 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:54,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018622249] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:54,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:54,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-01-09 03:39:54,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058635239] [2025-01-09 03:39:54,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:54,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:39:54,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:54,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:39:54,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:39:54,733 INFO L87 Difference]: Start difference. First operand 663 states and 1103 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:54,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:54,821 INFO L93 Difference]: Finished difference Result 1326 states and 2209 transitions. [2025-01-09 03:39:54,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:39:54,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 120 [2025-01-09 03:39:54,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:54,824 INFO L225 Difference]: With dead ends: 1326 [2025-01-09 03:39:54,824 INFO L226 Difference]: Without dead ends: 686 [2025-01-09 03:39:54,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:39:54,827 INFO L435 NwaCegarLoop]: 963 mSDtfsCounter, 111 mSDsluCounter, 4699 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 5662 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:54,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 5662 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:39:54,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2025-01-09 03:39:54,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 663. [2025-01-09 03:39:54,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 533 states have (on average 1.6904315196998123) internal successors, (901), 551 states have internal predecessors, (901), 101 states have call successors, (101), 28 states have call predecessors, (101), 28 states have return successors, (101), 96 states have call predecessors, (101), 98 states have call successors, (101) [2025-01-09 03:39:54,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1103 transitions. [2025-01-09 03:39:54,865 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1103 transitions. Word has length 120 [2025-01-09 03:39:54,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:54,865 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 1103 transitions. [2025-01-09 03:39:54,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:54,865 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1103 transitions. [2025-01-09 03:39:54,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-01-09 03:39:54,868 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:54,868 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:54,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-09 03:39:55,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-01-09 03:39:55,068 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:55,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:55,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1800172386, now seen corresponding path program 1 times [2025-01-09 03:39:55,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:55,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260677663] [2025-01-09 03:39:55,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:55,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:55,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-01-09 03:39:55,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-01-09 03:39:55,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:55,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:39:55,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:55,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260677663] [2025-01-09 03:39:55,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260677663] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:55,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268364955] [2025-01-09 03:39:55,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:55,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:55,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:55,179 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:55,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-09 03:39:55,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-01-09 03:39:55,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-01-09 03:39:55,383 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:55,383 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:55,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:39:55,388 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:55,444 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 03:39:55,445 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:55,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268364955] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:55,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:55,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-01-09 03:39:55,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316143035] [2025-01-09 03:39:55,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:55,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:39:55,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:55,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:39:55,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:39:55,446 INFO L87 Difference]: Start difference. First operand 663 states and 1103 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:55,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:55,592 INFO L93 Difference]: Finished difference Result 1329 states and 2213 transitions. [2025-01-09 03:39:55,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:39:55,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 120 [2025-01-09 03:39:55,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:55,596 INFO L225 Difference]: With dead ends: 1329 [2025-01-09 03:39:55,596 INFO L226 Difference]: Without dead ends: 689 [2025-01-09 03:39:55,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:39:55,599 INFO L435 NwaCegarLoop]: 953 mSDtfsCounter, 95 mSDsluCounter, 5621 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6574 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:55,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 6574 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:39:55,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2025-01-09 03:39:55,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 663. [2025-01-09 03:39:55,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 533 states have (on average 1.6904315196998123) internal successors, (901), 551 states have internal predecessors, (901), 101 states have call successors, (101), 28 states have call predecessors, (101), 28 states have return successors, (101), 96 states have call predecessors, (101), 98 states have call successors, (101) [2025-01-09 03:39:55,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1103 transitions. [2025-01-09 03:39:55,616 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1103 transitions. Word has length 120 [2025-01-09 03:39:55,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:55,616 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 1103 transitions. [2025-01-09 03:39:55,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:55,616 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1103 transitions. [2025-01-09 03:39:55,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-01-09 03:39:55,619 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:55,619 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:55,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-09 03:39:55,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:55,820 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:55,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:55,820 INFO L85 PathProgramCache]: Analyzing trace with hash 379675681, now seen corresponding path program 1 times [2025-01-09 03:39:55,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:55,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905057764] [2025-01-09 03:39:55,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:55,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:55,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-01-09 03:39:55,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-01-09 03:39:55,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:55,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:55,916 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:39:55,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:55,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905057764] [2025-01-09 03:39:55,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905057764] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:55,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506728498] [2025-01-09 03:39:55,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:55,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:55,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:55,918 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:55,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-09 03:39:56,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-01-09 03:39:56,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-01-09 03:39:56,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:56,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:56,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 1386 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:39:56,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 03:39:56,189 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:56,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506728498] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:56,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:56,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-01-09 03:39:56,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142284840] [2025-01-09 03:39:56,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:56,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:39:56,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:56,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:39:56,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:39:56,204 INFO L87 Difference]: Start difference. First operand 663 states and 1103 transitions. Second operand has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:56,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:56,331 INFO L93 Difference]: Finished difference Result 1329 states and 2213 transitions. [2025-01-09 03:39:56,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:39:56,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 121 [2025-01-09 03:39:56,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:56,335 INFO L225 Difference]: With dead ends: 1329 [2025-01-09 03:39:56,335 INFO L226 Difference]: Without dead ends: 689 [2025-01-09 03:39:56,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:39:56,338 INFO L435 NwaCegarLoop]: 953 mSDtfsCounter, 105 mSDsluCounter, 5609 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 6562 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:56,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 6562 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:39:56,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2025-01-09 03:39:56,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 663. [2025-01-09 03:39:56,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 533 states have (on average 1.6904315196998123) internal successors, (901), 551 states have internal predecessors, (901), 101 states have call successors, (101), 28 states have call predecessors, (101), 28 states have return successors, (101), 96 states have call predecessors, (101), 98 states have call successors, (101) [2025-01-09 03:39:56,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1103 transitions. [2025-01-09 03:39:56,362 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1103 transitions. Word has length 121 [2025-01-09 03:39:56,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:56,362 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 1103 transitions. [2025-01-09 03:39:56,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.285714285714286) internal successors, (86), 7 states have internal predecessors, (86), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:56,363 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1103 transitions. [2025-01-09 03:39:56,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-01-09 03:39:56,365 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:56,366 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:56,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-01-09 03:39:56,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:56,567 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:56,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:56,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1177090083, now seen corresponding path program 1 times [2025-01-09 03:39:56,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:56,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840360578] [2025-01-09 03:39:56,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:56,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:56,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-01-09 03:39:56,586 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-01-09 03:39:56,586 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:56,586 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:39:56,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:56,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840360578] [2025-01-09 03:39:56,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840360578] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:56,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25172489] [2025-01-09 03:39:56,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:56,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:56,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:56,694 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:56,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-09 03:39:56,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-01-09 03:39:56,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-01-09 03:39:56,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:56,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:56,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 1387 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:39:56,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:56,984 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 03:39:56,984 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:56,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25172489] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:56,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:56,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-01-09 03:39:56,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139941983] [2025-01-09 03:39:56,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:56,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:39:56,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:56,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:39:56,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:39:56,991 INFO L87 Difference]: Start difference. First operand 663 states and 1103 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:57,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:57,152 INFO L93 Difference]: Finished difference Result 1320 states and 2198 transitions. [2025-01-09 03:39:57,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:39:57,153 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 122 [2025-01-09 03:39:57,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:57,157 INFO L225 Difference]: With dead ends: 1320 [2025-01-09 03:39:57,157 INFO L226 Difference]: Without dead ends: 680 [2025-01-09 03:39:57,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:39:57,162 INFO L435 NwaCegarLoop]: 953 mSDtfsCounter, 115 mSDsluCounter, 5597 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 6550 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:57,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 6550 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:39:57,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2025-01-09 03:39:57,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 663. [2025-01-09 03:39:57,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 533 states have (on average 1.6904315196998123) internal successors, (901), 551 states have internal predecessors, (901), 101 states have call successors, (101), 28 states have call predecessors, (101), 28 states have return successors, (101), 96 states have call predecessors, (101), 98 states have call successors, (101) [2025-01-09 03:39:57,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1103 transitions. [2025-01-09 03:39:57,180 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1103 transitions. Word has length 122 [2025-01-09 03:39:57,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:57,180 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 1103 transitions. [2025-01-09 03:39:57,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:57,181 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1103 transitions. [2025-01-09 03:39:57,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-01-09 03:39:57,197 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:57,197 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:57,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-09 03:39:57,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:57,398 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:57,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:57,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1404499521, now seen corresponding path program 1 times [2025-01-09 03:39:57,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:57,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585998421] [2025-01-09 03:39:57,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:57,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:57,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-01-09 03:39:57,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-01-09 03:39:57,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:57,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:57,458 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-09 03:39:57,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:57,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585998421] [2025-01-09 03:39:57,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585998421] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:57,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281276762] [2025-01-09 03:39:57,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:57,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:57,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:57,461 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:57,462 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-09 03:39:57,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-01-09 03:39:57,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-01-09 03:39:57,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:57,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:57,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:39:57,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:57,722 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:39:57,722 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:57,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281276762] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:57,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:57,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:39:57,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950424590] [2025-01-09 03:39:57,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:57,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:39:57,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:57,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:39:57,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:39:57,724 INFO L87 Difference]: Start difference. First operand 663 states and 1103 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:39:57,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:57,778 INFO L93 Difference]: Finished difference Result 1292 states and 2158 transitions. [2025-01-09 03:39:57,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:39:57,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2025-01-09 03:39:57,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:57,784 INFO L225 Difference]: With dead ends: 1292 [2025-01-09 03:39:57,784 INFO L226 Difference]: Without dead ends: 663 [2025-01-09 03:39:57,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:39:57,787 INFO L435 NwaCegarLoop]: 961 mSDtfsCounter, 20 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2877 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:57,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2877 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:39:57,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2025-01-09 03:39:57,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 663. [2025-01-09 03:39:57,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 533 states have (on average 1.6810506566604129) internal successors, (896), 551 states have internal predecessors, (896), 101 states have call successors, (101), 28 states have call predecessors, (101), 28 states have return successors, (101), 96 states have call predecessors, (101), 98 states have call successors, (101) [2025-01-09 03:39:57,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1098 transitions. [2025-01-09 03:39:57,805 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1098 transitions. Word has length 122 [2025-01-09 03:39:57,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:57,805 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 1098 transitions. [2025-01-09 03:39:57,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:39:57,805 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1098 transitions. [2025-01-09 03:39:57,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-01-09 03:39:57,808 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:57,808 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:57,817 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-09 03:39:58,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-01-09 03:39:58,012 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:58,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:58,013 INFO L85 PathProgramCache]: Analyzing trace with hash -145240796, now seen corresponding path program 1 times [2025-01-09 03:39:58,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:58,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961475553] [2025-01-09 03:39:58,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:58,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:58,029 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-01-09 03:39:58,032 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-01-09 03:39:58,032 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:58,032 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:58,073 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-09 03:39:58,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:58,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961475553] [2025-01-09 03:39:58,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961475553] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:58,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806095625] [2025-01-09 03:39:58,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:58,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:58,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:58,076 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:58,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-09 03:39:58,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-01-09 03:39:58,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-01-09 03:39:58,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:58,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:58,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 1391 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:39:58,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:58,353 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-09 03:39:58,354 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:58,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806095625] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:58,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:58,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:39:58,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868053749] [2025-01-09 03:39:58,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:58,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:39:58,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:58,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:39:58,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:39:58,355 INFO L87 Difference]: Start difference. First operand 663 states and 1098 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:39:58,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:58,493 INFO L93 Difference]: Finished difference Result 1321 states and 2198 transitions. [2025-01-09 03:39:58,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:39:58,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2025-01-09 03:39:58,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:58,497 INFO L225 Difference]: With dead ends: 1321 [2025-01-09 03:39:58,497 INFO L226 Difference]: Without dead ends: 750 [2025-01-09 03:39:58,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:39:58,499 INFO L435 NwaCegarLoop]: 926 mSDtfsCounter, 171 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:58,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 2749 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:39:58,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2025-01-09 03:39:58,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 708. [2025-01-09 03:39:58,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 577 states have (on average 1.6984402079722705) internal successors, (980), 595 states have internal predecessors, (980), 101 states have call successors, (101), 29 states have call predecessors, (101), 29 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2025-01-09 03:39:58,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1181 transitions. [2025-01-09 03:39:58,515 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1181 transitions. Word has length 123 [2025-01-09 03:39:58,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:58,516 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 1181 transitions. [2025-01-09 03:39:58,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:39:58,516 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1181 transitions. [2025-01-09 03:39:58,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-01-09 03:39:58,518 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:58,518 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:58,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-09 03:39:58,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-01-09 03:39:58,719 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:58,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:58,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1100968899, now seen corresponding path program 1 times [2025-01-09 03:39:58,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:58,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387289041] [2025-01-09 03:39:58,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:58,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:58,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-01-09 03:39:58,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-01-09 03:39:58,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:58,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:58,769 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-09 03:39:58,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:58,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387289041] [2025-01-09 03:39:58,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387289041] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:58,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032570475] [2025-01-09 03:39:58,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:58,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:58,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:58,772 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:58,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-09 03:39:58,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-01-09 03:39:58,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-01-09 03:39:58,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:58,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:58,985 INFO L256 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:39:58,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:39:59,041 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:59,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032570475] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:59,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:59,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-01-09 03:39:59,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366383434] [2025-01-09 03:39:59,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:59,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:39:59,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:59,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:39:59,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:39:59,045 INFO L87 Difference]: Start difference. First operand 708 states and 1181 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:59,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:59,146 INFO L93 Difference]: Finished difference Result 1314 states and 2185 transitions. [2025-01-09 03:39:59,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:39:59,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 124 [2025-01-09 03:39:59,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:59,152 INFO L225 Difference]: With dead ends: 1314 [2025-01-09 03:39:59,152 INFO L226 Difference]: Without dead ends: 743 [2025-01-09 03:39:59,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:39:59,156 INFO L435 NwaCegarLoop]: 964 mSDtfsCounter, 89 mSDsluCounter, 4731 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5695 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:59,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5695 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:39:59,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2025-01-09 03:39:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 721. [2025-01-09 03:39:59,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 587 states have (on average 1.6950596252129473) internal successors, (995), 607 states have internal predecessors, (995), 102 states have call successors, (102), 29 states have call predecessors, (102), 31 states have return successors, (103), 97 states have call predecessors, (103), 99 states have call successors, (103) [2025-01-09 03:39:59,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1200 transitions. [2025-01-09 03:39:59,176 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1200 transitions. Word has length 124 [2025-01-09 03:39:59,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:59,177 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1200 transitions. [2025-01-09 03:39:59,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:59,177 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1200 transitions. [2025-01-09 03:39:59,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-01-09 03:39:59,180 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:59,180 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:59,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-09 03:39:59,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:59,381 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:39:59,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:39:59,382 INFO L85 PathProgramCache]: Analyzing trace with hash -593575714, now seen corresponding path program 1 times [2025-01-09 03:39:59,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:39:59,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671770124] [2025-01-09 03:39:59,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:59,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:39:59,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 03:39:59,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 03:39:59,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:59,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:39:59,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:39:59,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671770124] [2025-01-09 03:39:59,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671770124] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:39:59,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11802461] [2025-01-09 03:39:59,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:39:59,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:39:59,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:39:59,464 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:39:59,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-09 03:39:59,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 03:39:59,669 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 03:39:59,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:39:59,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:39:59,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:39:59,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:39:59,720 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:39:59,720 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:39:59,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11802461] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:39:59,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:39:59,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-01-09 03:39:59,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746636168] [2025-01-09 03:39:59,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:39:59,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:39:59,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:39:59,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:39:59,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:39:59,721 INFO L87 Difference]: Start difference. First operand 721 states and 1200 transitions. Second operand has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:59,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:39:59,792 INFO L93 Difference]: Finished difference Result 1323 states and 2199 transitions. [2025-01-09 03:39:59,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:39:59,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 125 [2025-01-09 03:39:59,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:39:59,796 INFO L225 Difference]: With dead ends: 1323 [2025-01-09 03:39:59,796 INFO L226 Difference]: Without dead ends: 752 [2025-01-09 03:39:59,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:39:59,799 INFO L435 NwaCegarLoop]: 964 mSDtfsCounter, 100 mSDsluCounter, 4719 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5683 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:39:59,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5683 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:39:59,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2025-01-09 03:39:59,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 721. [2025-01-09 03:39:59,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 587 states have (on average 1.6950596252129473) internal successors, (995), 607 states have internal predecessors, (995), 102 states have call successors, (102), 29 states have call predecessors, (102), 31 states have return successors, (103), 97 states have call predecessors, (103), 99 states have call successors, (103) [2025-01-09 03:39:59,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1200 transitions. [2025-01-09 03:39:59,815 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1200 transitions. Word has length 125 [2025-01-09 03:39:59,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:39:59,815 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1200 transitions. [2025-01-09 03:39:59,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:39:59,816 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1200 transitions. [2025-01-09 03:39:59,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-01-09 03:39:59,818 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:39:59,818 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:39:59,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-01-09 03:40:00,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:40:00,020 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:00,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:00,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1722430558, now seen corresponding path program 1 times [2025-01-09 03:40:00,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:00,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648205779] [2025-01-09 03:40:00,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:00,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:00,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 03:40:00,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 03:40:00,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:00,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:00,080 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:40:00,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:00,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648205779] [2025-01-09 03:40:00,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648205779] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:40:00,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439043620] [2025-01-09 03:40:00,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:00,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:40:00,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:40:00,083 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:40:00,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-09 03:40:00,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 03:40:00,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 03:40:00,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:00,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:00,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 1389 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:40:00,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:40:00,353 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:40:00,354 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:40:00,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439043620] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:00,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:40:00,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-01-09 03:40:00,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856181874] [2025-01-09 03:40:00,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:00,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:40:00,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:00,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:40:00,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:40:00,355 INFO L87 Difference]: Start difference. First operand 721 states and 1200 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:40:00,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:00,486 INFO L93 Difference]: Finished difference Result 1326 states and 2202 transitions. [2025-01-09 03:40:00,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:40:00,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 125 [2025-01-09 03:40:00,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:00,490 INFO L225 Difference]: With dead ends: 1326 [2025-01-09 03:40:00,490 INFO L226 Difference]: Without dead ends: 755 [2025-01-09 03:40:00,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:40:00,493 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 96 mSDsluCounter, 5630 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 6584 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:00,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 6584 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:40:00,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2025-01-09 03:40:00,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 721. [2025-01-09 03:40:00,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 587 states have (on average 1.6950596252129473) internal successors, (995), 607 states have internal predecessors, (995), 102 states have call successors, (102), 29 states have call predecessors, (102), 31 states have return successors, (103), 97 states have call predecessors, (103), 99 states have call successors, (103) [2025-01-09 03:40:00,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1200 transitions. [2025-01-09 03:40:00,512 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1200 transitions. Word has length 125 [2025-01-09 03:40:00,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:00,514 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1200 transitions. [2025-01-09 03:40:00,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:40:00,514 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1200 transitions. [2025-01-09 03:40:00,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-01-09 03:40:00,516 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:00,516 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:00,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-01-09 03:40:00,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-01-09 03:40:00,717 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:00,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:00,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1473640980, now seen corresponding path program 1 times [2025-01-09 03:40:00,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:00,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784797154] [2025-01-09 03:40:00,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:00,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:00,728 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 03:40:00,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 03:40:00,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:00,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:00,771 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-09 03:40:00,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:00,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784797154] [2025-01-09 03:40:00,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784797154] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:40:00,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120500734] [2025-01-09 03:40:00,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:00,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:40:00,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:40:00,773 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:40:00,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-09 03:40:00,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 03:40:00,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 03:40:00,991 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:00,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:00,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 1393 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:40:00,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:40:01,014 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:40:01,014 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:40:01,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120500734] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:01,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:40:01,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:40:01,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150113281] [2025-01-09 03:40:01,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:01,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:40:01,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:01,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:40:01,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:40:01,015 INFO L87 Difference]: Start difference. First operand 721 states and 1200 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:40:01,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:01,048 INFO L93 Difference]: Finished difference Result 1368 states and 2281 transitions. [2025-01-09 03:40:01,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:40:01,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2025-01-09 03:40:01,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:01,052 INFO L225 Difference]: With dead ends: 1368 [2025-01-09 03:40:01,052 INFO L226 Difference]: Without dead ends: 721 [2025-01-09 03:40:01,054 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:40:01,055 INFO L435 NwaCegarLoop]: 965 mSDtfsCounter, 2 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2886 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:01,055 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2886 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:40:01,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2025-01-09 03:40:01,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2025-01-09 03:40:01,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 587 states have (on average 1.6899488926746167) internal successors, (992), 607 states have internal predecessors, (992), 102 states have call successors, (102), 29 states have call predecessors, (102), 31 states have return successors, (103), 97 states have call predecessors, (103), 99 states have call successors, (103) [2025-01-09 03:40:01,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1197 transitions. [2025-01-09 03:40:01,073 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1197 transitions. Word has length 125 [2025-01-09 03:40:01,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:01,074 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1197 transitions. [2025-01-09 03:40:01,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:40:01,074 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1197 transitions. [2025-01-09 03:40:01,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-01-09 03:40:01,076 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:01,077 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:01,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-01-09 03:40:01,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-01-09 03:40:01,278 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:01,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:01,279 INFO L85 PathProgramCache]: Analyzing trace with hash -2008131135, now seen corresponding path program 1 times [2025-01-09 03:40:01,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:01,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367525687] [2025-01-09 03:40:01,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:01,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:01,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-01-09 03:40:01,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-01-09 03:40:01,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:01,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:01,354 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:40:01,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:01,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367525687] [2025-01-09 03:40:01,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367525687] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:40:01,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433380409] [2025-01-09 03:40:01,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:01,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:40:01,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:40:01,356 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:40:01,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-01-09 03:40:01,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-01-09 03:40:01,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-01-09 03:40:01,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:01,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:01,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 1390 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:40:01,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:40:01,629 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:40:01,629 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:40:01,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433380409] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:01,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:40:01,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-01-09 03:40:01,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860672609] [2025-01-09 03:40:01,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:01,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:40:01,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:01,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:40:01,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:40:01,630 INFO L87 Difference]: Start difference. First operand 721 states and 1197 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:40:01,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:01,741 INFO L93 Difference]: Finished difference Result 1317 states and 2185 transitions. [2025-01-09 03:40:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:40:01,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 126 [2025-01-09 03:40:01,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:01,745 INFO L225 Difference]: With dead ends: 1317 [2025-01-09 03:40:01,745 INFO L226 Difference]: Without dead ends: 746 [2025-01-09 03:40:01,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:40:01,748 INFO L435 NwaCegarLoop]: 951 mSDtfsCounter, 106 mSDsluCounter, 5603 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 6554 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:01,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 6554 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:40:01,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2025-01-09 03:40:01,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 721. [2025-01-09 03:40:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 587 states have (on average 1.6899488926746167) internal successors, (992), 607 states have internal predecessors, (992), 102 states have call successors, (102), 29 states have call predecessors, (102), 31 states have return successors, (103), 97 states have call predecessors, (103), 99 states have call successors, (103) [2025-01-09 03:40:01,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1197 transitions. [2025-01-09 03:40:01,764 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1197 transitions. Word has length 126 [2025-01-09 03:40:01,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:01,764 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1197 transitions. [2025-01-09 03:40:01,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:40:01,764 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1197 transitions. [2025-01-09 03:40:01,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-01-09 03:40:01,767 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:01,767 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:01,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-01-09 03:40:01,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:40:01,968 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:01,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:01,968 INFO L85 PathProgramCache]: Analyzing trace with hash 406157529, now seen corresponding path program 1 times [2025-01-09 03:40:01,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:01,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052791855] [2025-01-09 03:40:01,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:01,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:01,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:40:01,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:40:01,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:01,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:02,024 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:40:02,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:02,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052791855] [2025-01-09 03:40:02,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052791855] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:40:02,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580375541] [2025-01-09 03:40:02,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:02,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:40:02,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:40:02,027 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:40:02,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-01-09 03:40:02,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:40:02,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:40:02,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:02,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:02,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 1391 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:40:02,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:40:02,257 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:40:02,257 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:40:02,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580375541] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:02,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:40:02,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:40:02,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945007717] [2025-01-09 03:40:02,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:02,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:40:02,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:02,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:40:02,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:40:02,258 INFO L87 Difference]: Start difference. First operand 721 states and 1197 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:40:02,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:02,292 INFO L93 Difference]: Finished difference Result 1309 states and 2185 transitions. [2025-01-09 03:40:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:40:02,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2025-01-09 03:40:02,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:02,296 INFO L225 Difference]: With dead ends: 1309 [2025-01-09 03:40:02,296 INFO L226 Difference]: Without dead ends: 742 [2025-01-09 03:40:02,298 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:40:02,298 INFO L435 NwaCegarLoop]: 994 mSDtfsCounter, 54 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2922 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:02,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2922 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:40:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2025-01-09 03:40:02,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2025-01-09 03:40:02,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 607 states have (on average 1.6902800658978583) internal successors, (1026), 627 states have internal predecessors, (1026), 102 states have call successors, (102), 30 states have call predecessors, (102), 32 states have return successors, (103), 97 states have call predecessors, (103), 99 states have call successors, (103) [2025-01-09 03:40:02,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1231 transitions. [2025-01-09 03:40:02,312 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1231 transitions. Word has length 127 [2025-01-09 03:40:02,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:02,312 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 1231 transitions. [2025-01-09 03:40:02,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:40:02,312 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1231 transitions. [2025-01-09 03:40:02,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-01-09 03:40:02,314 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:02,315 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-01-09 03:40:02,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-01-09 03:40:02,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-01-09 03:40:02,515 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:02,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:02,516 INFO L85 PathProgramCache]: Analyzing trace with hash -303188188, now seen corresponding path program 1 times [2025-01-09 03:40:02,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:02,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758899891] [2025-01-09 03:40:02,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:02,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:02,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:40:02,529 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:40:02,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:02,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:02,578 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-09 03:40:02,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:02,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758899891] [2025-01-09 03:40:02,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758899891] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:40:02,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341607303] [2025-01-09 03:40:02,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:02,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:40:02,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:40:02,581 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:40:02,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-01-09 03:40:02,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:40:02,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:40:02,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:02,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:02,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:40:02,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:40:02,874 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-01-09 03:40:02,874 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:40:02,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341607303] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:02,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:40:02,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2025-01-09 03:40:02,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994806294] [2025-01-09 03:40:02,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:02,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:40:02,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:02,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:40:02,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:40:02,875 INFO L87 Difference]: Start difference. First operand 742 states and 1231 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:40:03,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:03,568 INFO L93 Difference]: Finished difference Result 2444 states and 4140 transitions. [2025-01-09 03:40:03,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:40:03,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 127 [2025-01-09 03:40:03,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:03,575 INFO L225 Difference]: With dead ends: 2444 [2025-01-09 03:40:03,575 INFO L226 Difference]: Without dead ends: 1856 [2025-01-09 03:40:03,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:40:03,578 INFO L435 NwaCegarLoop]: 1102 mSDtfsCounter, 1786 mSDsluCounter, 2468 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1786 SdHoareTripleChecker+Valid, 3570 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:03,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1786 Valid, 3570 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 03:40:03,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2025-01-09 03:40:03,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1842. [2025-01-09 03:40:03,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1492 states have (on average 1.665549597855228) internal successors, (2485), 1540 states have internal predecessors, (2485), 271 states have call successors, (271), 78 states have call predecessors, (271), 78 states have return successors, (319), 262 states have call predecessors, (319), 266 states have call successors, (319) [2025-01-09 03:40:03,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 3075 transitions. [2025-01-09 03:40:03,625 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 3075 transitions. Word has length 127 [2025-01-09 03:40:03,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:03,625 INFO L471 AbstractCegarLoop]: Abstraction has 1842 states and 3075 transitions. [2025-01-09 03:40:03,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:40:03,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 3075 transitions. [2025-01-09 03:40:03,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-01-09 03:40:03,628 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:03,628 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:03,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-01-09 03:40:03,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-01-09 03:40:03,832 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:03,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:03,833 INFO L85 PathProgramCache]: Analyzing trace with hash 2141661305, now seen corresponding path program 1 times [2025-01-09 03:40:03,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:03,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061884889] [2025-01-09 03:40:03,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:03,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:03,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:40:03,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:40:03,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:03,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:03,911 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:40:03,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:03,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061884889] [2025-01-09 03:40:03,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061884889] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:40:03,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [204145177] [2025-01-09 03:40:03,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:03,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:40:03,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:40:03,917 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:40:03,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-01-09 03:40:04,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:40:04,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:40:04,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:04,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:04,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 1385 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:40:04,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:40:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-09 03:40:04,140 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:40:04,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [204145177] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:04,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:40:04,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-01-09 03:40:04,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085538852] [2025-01-09 03:40:04,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:04,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:40:04,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:04,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:40:04,141 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:40:04,141 INFO L87 Difference]: Start difference. First operand 1842 states and 3075 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:40:04,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:04,188 INFO L93 Difference]: Finished difference Result 3661 states and 6128 transitions. [2025-01-09 03:40:04,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:40:04,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2025-01-09 03:40:04,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:04,196 INFO L225 Difference]: With dead ends: 3661 [2025-01-09 03:40:04,196 INFO L226 Difference]: Without dead ends: 1807 [2025-01-09 03:40:04,201 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:40:04,201 INFO L435 NwaCegarLoop]: 962 mSDtfsCounter, 7 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:04,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2878 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:40:04,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1807 states. [2025-01-09 03:40:04,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1807 to 1807. [2025-01-09 03:40:04,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1807 states, 1460 states have (on average 1.6554794520547946) internal successors, (2417), 1506 states have internal predecessors, (2417), 270 states have call successors, (270), 78 states have call predecessors, (270), 76 states have return successors, (316), 261 states have call predecessors, (316), 265 states have call successors, (316) [2025-01-09 03:40:04,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1807 states to 1807 states and 3003 transitions. [2025-01-09 03:40:04,236 INFO L78 Accepts]: Start accepts. Automaton has 1807 states and 3003 transitions. Word has length 127 [2025-01-09 03:40:04,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:04,237 INFO L471 AbstractCegarLoop]: Abstraction has 1807 states and 3003 transitions. [2025-01-09 03:40:04,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:40:04,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1807 states and 3003 transitions. [2025-01-09 03:40:04,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-01-09 03:40:04,239 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:04,240 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:04,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-01-09 03:40:04,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:40:04,441 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:04,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:04,441 INFO L85 PathProgramCache]: Analyzing trace with hash -308518884, now seen corresponding path program 1 times [2025-01-09 03:40:04,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:04,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310067802] [2025-01-09 03:40:04,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:04,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:04,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 03:40:04,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 03:40:04,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:04,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:04,526 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:40:04,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:04,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310067802] [2025-01-09 03:40:04,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310067802] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:40:04,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812041623] [2025-01-09 03:40:04,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:04,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:40:04,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:40:04,530 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:40:04,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-01-09 03:40:04,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 03:40:04,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 03:40:04,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:04,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:04,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 1383 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 03:40:04,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:40:04,794 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 03:40:04,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:40:04,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812041623] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:04,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:40:04,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2025-01-09 03:40:04,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045903499] [2025-01-09 03:40:04,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:04,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:40:04,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:04,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:40:04,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:40:04,798 INFO L87 Difference]: Start difference. First operand 1807 states and 3003 transitions. Second operand has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:40:04,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:04,873 INFO L93 Difference]: Finished difference Result 3629 states and 6028 transitions. [2025-01-09 03:40:04,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:40:04,873 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 128 [2025-01-09 03:40:04,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:04,881 INFO L225 Difference]: With dead ends: 3629 [2025-01-09 03:40:04,881 INFO L226 Difference]: Without dead ends: 1839 [2025-01-09 03:40:04,888 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:40:04,890 INFO L435 NwaCegarLoop]: 972 mSDtfsCounter, 122 mSDsluCounter, 4721 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 5693 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:04,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 5693 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:40:04,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2025-01-09 03:40:04,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1800. [2025-01-09 03:40:04,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1453 states have (on average 1.65244322092223) internal successors, (2401), 1499 states have internal predecessors, (2401), 270 states have call successors, (270), 78 states have call predecessors, (270), 76 states have return successors, (316), 261 states have call predecessors, (316), 265 states have call successors, (316) [2025-01-09 03:40:04,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2987 transitions. [2025-01-09 03:40:04,935 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2987 transitions. Word has length 128 [2025-01-09 03:40:04,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:04,935 INFO L471 AbstractCegarLoop]: Abstraction has 1800 states and 2987 transitions. [2025-01-09 03:40:04,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.5) internal successors, (93), 6 states have internal predecessors, (93), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:40:04,935 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2987 transitions. [2025-01-09 03:40:04,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-01-09 03:40:04,937 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:04,937 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:04,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-01-09 03:40:05,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:40:05,142 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:05,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:05,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1306730075, now seen corresponding path program 1 times [2025-01-09 03:40:05,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:05,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083440023] [2025-01-09 03:40:05,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:05,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:05,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-01-09 03:40:05,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-01-09 03:40:05,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:05,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:05,237 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:40:05,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:05,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083440023] [2025-01-09 03:40:05,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083440023] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:05,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:40:05,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:40:05,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736328830] [2025-01-09 03:40:05,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:05,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:40:05,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:05,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:40:05,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:40:05,239 INFO L87 Difference]: Start difference. First operand 1800 states and 2987 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:40:05,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:05,318 INFO L93 Difference]: Finished difference Result 3533 states and 5876 transitions. [2025-01-09 03:40:05,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:40:05,319 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2025-01-09 03:40:05,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:05,326 INFO L225 Difference]: With dead ends: 3533 [2025-01-09 03:40:05,326 INFO L226 Difference]: Without dead ends: 1841 [2025-01-09 03:40:05,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:40:05,332 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 126 mSDsluCounter, 4677 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 5637 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:05,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 5637 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:40:05,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2025-01-09 03:40:05,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1800. [2025-01-09 03:40:05,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1453 states have (on average 1.65244322092223) internal successors, (2401), 1499 states have internal predecessors, (2401), 270 states have call successors, (270), 78 states have call predecessors, (270), 76 states have return successors, (316), 261 states have call predecessors, (316), 265 states have call successors, (316) [2025-01-09 03:40:05,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2987 transitions. [2025-01-09 03:40:05,398 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2987 transitions. Word has length 129 [2025-01-09 03:40:05,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:05,398 INFO L471 AbstractCegarLoop]: Abstraction has 1800 states and 2987 transitions. [2025-01-09 03:40:05,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:40:05,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2987 transitions. [2025-01-09 03:40:05,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-01-09 03:40:05,400 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:05,400 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:05,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-01-09 03:40:05,401 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:05,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:05,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1205298131, now seen corresponding path program 1 times [2025-01-09 03:40:05,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:05,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289225250] [2025-01-09 03:40:05,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:05,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:05,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-01-09 03:40:05,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-01-09 03:40:05,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:05,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:05,462 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:40:05,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:05,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289225250] [2025-01-09 03:40:05,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289225250] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:05,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:40:05,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:40:05,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001329750] [2025-01-09 03:40:05,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:05,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:40:05,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:05,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:40:05,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:40:05,465 INFO L87 Difference]: Start difference. First operand 1800 states and 2987 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:40:05,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:05,512 INFO L93 Difference]: Finished difference Result 3555 states and 5917 transitions. [2025-01-09 03:40:05,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:40:05,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2025-01-09 03:40:05,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:05,521 INFO L225 Difference]: With dead ends: 3555 [2025-01-09 03:40:05,521 INFO L226 Difference]: Without dead ends: 1758 [2025-01-09 03:40:05,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:40:05,527 INFO L435 NwaCegarLoop]: 961 mSDtfsCounter, 8 mSDsluCounter, 1916 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2877 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:05,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2877 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:40:05,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1758 states. [2025-01-09 03:40:05,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1758 to 1758. [2025-01-09 03:40:05,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1414 states have (on average 1.6463932107496464) internal successors, (2328), 1458 states have internal predecessors, (2328), 269 states have call successors, (269), 78 states have call predecessors, (269), 74 states have return successors, (313), 260 states have call predecessors, (313), 264 states have call successors, (313) [2025-01-09 03:40:05,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 2910 transitions. [2025-01-09 03:40:05,563 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 2910 transitions. Word has length 129 [2025-01-09 03:40:05,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:05,563 INFO L471 AbstractCegarLoop]: Abstraction has 1758 states and 2910 transitions. [2025-01-09 03:40:05,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:40:05,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 2910 transitions. [2025-01-09 03:40:05,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-01-09 03:40:05,566 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:05,566 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:05,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-01-09 03:40:05,567 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:05,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:05,567 INFO L85 PathProgramCache]: Analyzing trace with hash 143532216, now seen corresponding path program 1 times [2025-01-09 03:40:05,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:05,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085463468] [2025-01-09 03:40:05,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:05,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:05,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-01-09 03:40:05,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-01-09 03:40:05,587 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:05,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:05,639 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:40:05,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:05,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085463468] [2025-01-09 03:40:05,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085463468] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:05,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:40:05,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:40:05,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761988850] [2025-01-09 03:40:05,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:05,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:40:05,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:05,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:40:05,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:40:05,642 INFO L87 Difference]: Start difference. First operand 1758 states and 2910 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:40:06,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:06,209 INFO L93 Difference]: Finished difference Result 5072 states and 8628 transitions. [2025-01-09 03:40:06,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:40:06,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 130 [2025-01-09 03:40:06,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:06,227 INFO L225 Difference]: With dead ends: 5072 [2025-01-09 03:40:06,228 INFO L226 Difference]: Without dead ends: 3384 [2025-01-09 03:40:06,234 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:40:06,234 INFO L435 NwaCegarLoop]: 1878 mSDtfsCounter, 1855 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 3354 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:06,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1855 Valid, 3354 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 03:40:06,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3384 states. [2025-01-09 03:40:06,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3384 to 3378. [2025-01-09 03:40:06,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3378 states, 2718 states have (on average 1.6383370125091978) internal successors, (4453), 2804 states have internal predecessors, (4453), 516 states have call successors, (516), 150 states have call predecessors, (516), 143 states have return successors, (658), 501 states have call predecessors, (658), 508 states have call successors, (658) [2025-01-09 03:40:06,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3378 states to 3378 states and 5627 transitions. [2025-01-09 03:40:06,314 INFO L78 Accepts]: Start accepts. Automaton has 3378 states and 5627 transitions. Word has length 130 [2025-01-09 03:40:06,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:06,314 INFO L471 AbstractCegarLoop]: Abstraction has 3378 states and 5627 transitions. [2025-01-09 03:40:06,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:40:06,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3378 states and 5627 transitions. [2025-01-09 03:40:06,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-01-09 03:40:06,317 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:06,317 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:06,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-01-09 03:40:06,317 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:06,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:06,318 INFO L85 PathProgramCache]: Analyzing trace with hash -146914815, now seen corresponding path program 1 times [2025-01-09 03:40:06,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:06,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402107623] [2025-01-09 03:40:06,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:06,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:06,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-01-09 03:40:06,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-01-09 03:40:06,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:06,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:06,389 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:40:06,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:06,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402107623] [2025-01-09 03:40:06,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402107623] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:06,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:40:06,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:40:06,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109369094] [2025-01-09 03:40:06,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:06,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:40:06,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:06,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:40:06,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:40:06,392 INFO L87 Difference]: Start difference. First operand 3378 states and 5627 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:40:07,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:07,106 INFO L93 Difference]: Finished difference Result 9947 states and 17017 transitions. [2025-01-09 03:40:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:40:07,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 131 [2025-01-09 03:40:07,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:07,131 INFO L225 Difference]: With dead ends: 9947 [2025-01-09 03:40:07,131 INFO L226 Difference]: Without dead ends: 6639 [2025-01-09 03:40:07,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:40:07,148 INFO L435 NwaCegarLoop]: 1887 mSDtfsCounter, 1864 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 3370 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:07,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1864 Valid, 3370 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 03:40:07,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6639 states. [2025-01-09 03:40:07,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6639 to 6631. [2025-01-09 03:40:07,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6631 states, 5336 states have (on average 1.6300599700149925) internal successors, (8698), 5506 states have internal predecessors, (8698), 1013 states have call successors, (1013), 294 states have call predecessors, (1013), 281 states have return successors, (1423), 986 states have call predecessors, (1423), 999 states have call successors, (1423) [2025-01-09 03:40:07,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6631 states to 6631 states and 11134 transitions. [2025-01-09 03:40:07,365 INFO L78 Accepts]: Start accepts. Automaton has 6631 states and 11134 transitions. Word has length 131 [2025-01-09 03:40:07,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:07,365 INFO L471 AbstractCegarLoop]: Abstraction has 6631 states and 11134 transitions. [2025-01-09 03:40:07,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:40:07,365 INFO L276 IsEmpty]: Start isEmpty. Operand 6631 states and 11134 transitions. [2025-01-09 03:40:07,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-01-09 03:40:07,367 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:07,367 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:07,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-01-09 03:40:07,368 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:07,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:07,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1763538829, now seen corresponding path program 1 times [2025-01-09 03:40:07,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:07,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328636535] [2025-01-09 03:40:07,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:07,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:07,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-01-09 03:40:07,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-01-09 03:40:07,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:07,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:40:07,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:07,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328636535] [2025-01-09 03:40:07,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328636535] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:07,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:40:07,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:40:07,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013489923] [2025-01-09 03:40:07,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:07,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:40:07,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:07,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:40:07,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:40:07,437 INFO L87 Difference]: Start difference. First operand 6631 states and 11134 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:40:08,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:08,203 INFO L93 Difference]: Finished difference Result 19721 states and 34293 transitions. [2025-01-09 03:40:08,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:40:08,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 132 [2025-01-09 03:40:08,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:08,256 INFO L225 Difference]: With dead ends: 19721 [2025-01-09 03:40:08,257 INFO L226 Difference]: Without dead ends: 13160 [2025-01-09 03:40:08,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:40:08,290 INFO L435 NwaCegarLoop]: 1896 mSDtfsCounter, 1873 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 3386 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:08,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 3386 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 03:40:08,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13160 states. [2025-01-09 03:40:08,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13160 to 13152. [2025-01-09 03:40:08,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13152 states, 10584 states have (on average 1.621031746031746) internal successors, (17157), 10922 states have internal predecessors, (17157), 2010 states have call successors, (2010), 582 states have call predecessors, (2010), 557 states have return successors, (3208), 1959 states have call predecessors, (3208), 1984 states have call successors, (3208) [2025-01-09 03:40:08,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13152 states to 13152 states and 22375 transitions. [2025-01-09 03:40:08,762 INFO L78 Accepts]: Start accepts. Automaton has 13152 states and 22375 transitions. Word has length 132 [2025-01-09 03:40:08,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:08,763 INFO L471 AbstractCegarLoop]: Abstraction has 13152 states and 22375 transitions. [2025-01-09 03:40:08,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:40:08,763 INFO L276 IsEmpty]: Start isEmpty. Operand 13152 states and 22375 transitions. [2025-01-09 03:40:08,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-01-09 03:40:08,766 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:08,766 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:08,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-01-09 03:40:08,766 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:08,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:08,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1541976356, now seen corresponding path program 1 times [2025-01-09 03:40:08,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:08,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803233690] [2025-01-09 03:40:08,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:08,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:08,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-01-09 03:40:08,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-01-09 03:40:08,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:08,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:40:08,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:08,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803233690] [2025-01-09 03:40:08,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803233690] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:08,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:40:08,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:40:08,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169113528] [2025-01-09 03:40:08,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:08,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:40:08,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:08,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:40:08,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:40:08,855 INFO L87 Difference]: Start difference. First operand 13152 states and 22375 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:40:10,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:10,282 INFO L93 Difference]: Finished difference Result 39299 states and 70299 transitions. [2025-01-09 03:40:10,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:40:10,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 133 [2025-01-09 03:40:10,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:10,376 INFO L225 Difference]: With dead ends: 39299 [2025-01-09 03:40:10,376 INFO L226 Difference]: Without dead ends: 26217 [2025-01-09 03:40:10,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:40:10,459 INFO L435 NwaCegarLoop]: 1905 mSDtfsCounter, 1882 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1882 SdHoareTripleChecker+Valid, 3402 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:10,460 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1882 Valid, 3402 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 03:40:10,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26217 states. [2025-01-09 03:40:11,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26217 to 26213. [2025-01-09 03:40:11,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26213 states, 21096 states have (on average 1.611490329920364) internal successors, (33996), 21770 states have internal predecessors, (33996), 4007 states have call successors, (4007), 1158 states have call predecessors, (4007), 1109 states have return successors, (7717), 3908 states have call predecessors, (7717), 3957 states have call successors, (7717) [2025-01-09 03:40:11,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26213 states to 26213 states and 45720 transitions. [2025-01-09 03:40:11,485 INFO L78 Accepts]: Start accepts. Automaton has 26213 states and 45720 transitions. Word has length 133 [2025-01-09 03:40:11,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:11,486 INFO L471 AbstractCegarLoop]: Abstraction has 26213 states and 45720 transitions. [2025-01-09 03:40:11,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:40:11,486 INFO L276 IsEmpty]: Start isEmpty. Operand 26213 states and 45720 transitions. [2025-01-09 03:40:11,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-01-09 03:40:11,489 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:11,489 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:11,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-01-09 03:40:11,490 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:11,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:11,490 INFO L85 PathProgramCache]: Analyzing trace with hash -171207634, now seen corresponding path program 1 times [2025-01-09 03:40:11,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:11,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598784657] [2025-01-09 03:40:11,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:11,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:11,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 03:40:11,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 03:40:11,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:11,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:11,553 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:40:11,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:11,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598784657] [2025-01-09 03:40:11,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598784657] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:11,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:40:11,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:40:11,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029863940] [2025-01-09 03:40:11,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:11,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:40:11,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:11,555 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:40:11,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:40:11,555 INFO L87 Difference]: Start difference. First operand 26213 states and 45720 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:40:14,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:14,737 INFO L93 Difference]: Finished difference Result 78497 states and 148329 transitions. [2025-01-09 03:40:14,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:40:14,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 134 [2025-01-09 03:40:14,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:15,049 INFO L225 Difference]: With dead ends: 78497 [2025-01-09 03:40:15,049 INFO L226 Difference]: Without dead ends: 52354 [2025-01-09 03:40:15,245 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:40:15,246 INFO L435 NwaCegarLoop]: 1914 mSDtfsCounter, 1891 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 3418 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:15,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 3418 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 03:40:15,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52354 states. [2025-01-09 03:40:16,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52354 to 52350. [2025-01-09 03:40:17,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52350 states, 42132 states have (on average 1.601799107566695) internal successors, (67487), 43478 states have internal predecessors, (67487), 8004 states have call successors, (8004), 2310 states have call predecessors, (8004), 2213 states have return successors, (20338), 7809 states have call predecessors, (20338), 7906 states have call successors, (20338) [2025-01-09 03:40:18,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52350 states to 52350 states and 95829 transitions. [2025-01-09 03:40:18,096 INFO L78 Accepts]: Start accepts. Automaton has 52350 states and 95829 transitions. Word has length 134 [2025-01-09 03:40:18,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:18,097 INFO L471 AbstractCegarLoop]: Abstraction has 52350 states and 95829 transitions. [2025-01-09 03:40:18,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 4 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:40:18,097 INFO L276 IsEmpty]: Start isEmpty. Operand 52350 states and 95829 transitions. [2025-01-09 03:40:18,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-01-09 03:40:18,100 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:18,100 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:18,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-01-09 03:40:18,100 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:18,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:18,101 INFO L85 PathProgramCache]: Analyzing trace with hash -652287892, now seen corresponding path program 1 times [2025-01-09 03:40:18,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:18,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110901427] [2025-01-09 03:40:18,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:18,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:18,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 03:40:18,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 03:40:18,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:18,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:18,227 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:40:18,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:18,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110901427] [2025-01-09 03:40:18,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110901427] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:18,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:40:18,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:40:18,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355341554] [2025-01-09 03:40:18,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:18,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:40:18,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:18,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:40:18,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:40:18,229 INFO L87 Difference]: Start difference. First operand 52350 states and 95829 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:40:22,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:22,700 INFO L93 Difference]: Finished difference Result 141575 states and 257961 transitions. [2025-01-09 03:40:22,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 03:40:22,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 134 [2025-01-09 03:40:22,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:23,304 INFO L225 Difference]: With dead ends: 141575 [2025-01-09 03:40:23,304 INFO L226 Difference]: Without dead ends: 89326 [2025-01-09 03:40:23,780 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:40:23,780 INFO L435 NwaCegarLoop]: 1068 mSDtfsCounter, 1107 mSDsluCounter, 5080 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 6148 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:23,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 6148 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:40:23,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89326 states. [2025-01-09 03:40:27,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89326 to 88138. [2025-01-09 03:40:27,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88138 states, 70939 states have (on average 1.5907046899448822) internal successors, (112843), 72989 states have internal predecessors, (112843), 13286 states have call successors, (13286), 3818 states have call predecessors, (13286), 3912 states have return successors, (32555), 13378 states have call predecessors, (32555), 13155 states have call successors, (32555) [2025-01-09 03:40:28,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88138 states to 88138 states and 158684 transitions. [2025-01-09 03:40:28,662 INFO L78 Accepts]: Start accepts. Automaton has 88138 states and 158684 transitions. Word has length 134 [2025-01-09 03:40:28,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:28,663 INFO L471 AbstractCegarLoop]: Abstraction has 88138 states and 158684 transitions. [2025-01-09 03:40:28,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:40:28,663 INFO L276 IsEmpty]: Start isEmpty. Operand 88138 states and 158684 transitions. [2025-01-09 03:40:28,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 03:40:28,666 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:28,666 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:28,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-01-09 03:40:28,667 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:28,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:28,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1429315262, now seen corresponding path program 1 times [2025-01-09 03:40:28,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:28,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617191605] [2025-01-09 03:40:28,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:28,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:28,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:40:28,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:40:28,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:28,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:29,026 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:40:29,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:29,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617191605] [2025-01-09 03:40:29,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617191605] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:29,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:40:29,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:40:29,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078347309] [2025-01-09 03:40:29,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:29,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:40:29,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:29,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:40:29,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:40:29,031 INFO L87 Difference]: Start difference. First operand 88138 states and 158684 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:40:34,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:34,369 INFO L93 Difference]: Finished difference Result 163926 states and 294400 transitions. [2025-01-09 03:40:34,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:40:34,370 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2025-01-09 03:40:34,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:34,936 INFO L225 Difference]: With dead ends: 163926 [2025-01-09 03:40:34,937 INFO L226 Difference]: Without dead ends: 89866 [2025-01-09 03:40:35,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:40:35,650 INFO L435 NwaCegarLoop]: 974 mSDtfsCounter, 0 mSDsluCounter, 4833 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5807 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:35,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5807 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:40:35,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89866 states. [2025-01-09 03:40:38,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89866 to 89546. [2025-01-09 03:40:38,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89546 states, 71931 states have (on average 1.5825582850231472) internal successors, (113835), 74013 states have internal predecessors, (113835), 13286 states have call successors, (13286), 3818 states have call predecessors, (13286), 4328 states have return successors, (34507), 13762 states have call predecessors, (34507), 13155 states have call successors, (34507) [2025-01-09 03:40:39,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89546 states to 89546 states and 161628 transitions. [2025-01-09 03:40:39,822 INFO L78 Accepts]: Start accepts. Automaton has 89546 states and 161628 transitions. Word has length 140 [2025-01-09 03:40:39,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:39,823 INFO L471 AbstractCegarLoop]: Abstraction has 89546 states and 161628 transitions. [2025-01-09 03:40:39,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:40:39,823 INFO L276 IsEmpty]: Start isEmpty. Operand 89546 states and 161628 transitions. [2025-01-09 03:40:39,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-01-09 03:40:39,826 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:39,826 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:39,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-01-09 03:40:39,826 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:39,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:39,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2022445165, now seen corresponding path program 1 times [2025-01-09 03:40:39,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:39,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735085573] [2025-01-09 03:40:39,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:39,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:39,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 03:40:39,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 03:40:39,844 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:39,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:40,138 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:40:40,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:40,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735085573] [2025-01-09 03:40:40,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735085573] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:40,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:40:40,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:40:40,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114442499] [2025-01-09 03:40:40,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:40,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:40:40,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:40,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:40:40,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:40:40,140 INFO L87 Difference]: Start difference. First operand 89546 states and 161628 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:40:45,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:45,403 INFO L93 Difference]: Finished difference Result 166294 states and 298784 transitions. [2025-01-09 03:40:45,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:40:45,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2025-01-09 03:40:45,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:45,826 INFO L225 Difference]: With dead ends: 166294 [2025-01-09 03:40:45,826 INFO L226 Difference]: Without dead ends: 90826 [2025-01-09 03:40:46,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:40:46,667 INFO L435 NwaCegarLoop]: 971 mSDtfsCounter, 0 mSDsluCounter, 4823 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5794 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:40:46,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5794 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:40:46,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90826 states. [2025-01-09 03:40:49,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90826 to 89738. [2025-01-09 03:40:49,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89738 states, 72123 states have (on average 1.5810074456137433) internal successors, (114027), 74013 states have internal predecessors, (114027), 13286 states have call successors, (13286), 3818 states have call predecessors, (13286), 4328 states have return successors, (34507), 13954 states have call predecessors, (34507), 13155 states have call successors, (34507) [2025-01-09 03:40:51,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89738 states to 89738 states and 161820 transitions. [2025-01-09 03:40:51,279 INFO L78 Accepts]: Start accepts. Automaton has 89738 states and 161820 transitions. Word has length 139 [2025-01-09 03:40:51,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:40:51,279 INFO L471 AbstractCegarLoop]: Abstraction has 89738 states and 161820 transitions. [2025-01-09 03:40:51,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:40:51,279 INFO L276 IsEmpty]: Start isEmpty. Operand 89738 states and 161820 transitions. [2025-01-09 03:40:51,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 03:40:51,282 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:40:51,283 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:40:51,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-01-09 03:40:51,283 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:40:51,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:40:51,283 INFO L85 PathProgramCache]: Analyzing trace with hash -222155584, now seen corresponding path program 1 times [2025-01-09 03:40:51,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:40:51,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575539265] [2025-01-09 03:40:51,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:40:51,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:40:51,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:40:51,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:40:51,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:40:51,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:40:51,386 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:40:51,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:40:51,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575539265] [2025-01-09 03:40:51,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575539265] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:40:51,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:40:51,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:40:51,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587963306] [2025-01-09 03:40:51,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:40:51,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:40:51,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:40:51,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:40:51,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:40:51,388 INFO L87 Difference]: Start difference. First operand 89738 states and 161820 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:40:56,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:40:56,987 INFO L93 Difference]: Finished difference Result 166678 states and 299168 transitions. [2025-01-09 03:40:56,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:40:56,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 140 [2025-01-09 03:40:56,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:40:57,497 INFO L225 Difference]: With dead ends: 166678 [2025-01-09 03:40:57,497 INFO L226 Difference]: Without dead ends: 91018