./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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_spec9_product25.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 68864d90c2581c7e2b9a72172352bcf9279d03107788434bd4ac5af6cc5db51a --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 15:38:35,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 15:38:35,991 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 15:38:35,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 15:38:35,995 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 15:38:36,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 15:38:36,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 15:38:36,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 15:38:36,009 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 15:38:36,009 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 15:38:36,009 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 15:38:36,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 15:38:36,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 15:38:36,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 15:38:36,010 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 15:38:36,010 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 15:38:36,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 15:38:36,010 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 15:38:36,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 15:38:36,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 15:38:36,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 15:38:36,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 15:38:36,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 15:38:36,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 15:38:36,011 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 15:38:36,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 15:38:36,011 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 15:38:36,011 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 15:38:36,011 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 15:38:36,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 15:38:36,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 15:38:36,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 15:38:36,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:38:36,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 15:38:36,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 15:38:36,012 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 15:38:36,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 15:38:36,012 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 15:38:36,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 15:38:36,012 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 15:38:36,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 15:38:36,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 15:38:36,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 15:38:36,013 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 -> 68864d90c2581c7e2b9a72172352bcf9279d03107788434bd4ac5af6cc5db51a [2025-02-05 15:38:36,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 15:38:36,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 15:38:36,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 15:38:36,244 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 15:38:36,245 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 15:38:36,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c [2025-02-05 15:38:37,469 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ef9eeb7a2/e362389591c04fa199e7b3cd39fd0204/FLAGbc6730985 [2025-02-05 15:38:37,877 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 15:38:37,882 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product25.cil.c [2025-02-05 15:38:37,903 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ef9eeb7a2/e362389591c04fa199e7b3cd39fd0204/FLAGbc6730985 [2025-02-05 15:38:38,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ef9eeb7a2/e362389591c04fa199e7b3cd39fd0204 [2025-02-05 15:38:38,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 15:38:38,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 15:38:38,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 15:38:38,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 15:38:38,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 15:38:38,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f4d526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38, skipping insertion in model container [2025-02-05 15:38:38,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,138 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 15:38:38,434 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_spec9_product25.cil.c[23488,23501] [2025-02-05 15:38:38,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:38:38,536 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 15:38:38,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [48] [2025-02-05 15:38:38,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [213] [2025-02-05 15:38:38,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [334] [2025-02-05 15:38:38,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [432] [2025-02-05 15:38:38,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [446] [2025-02-05 15:38:38,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [812] [2025-02-05 15:38:38,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1166] [2025-02-05 15:38:38,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1175] [2025-02-05 15:38:38,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1842] [2025-02-05 15:38:38,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1877] [2025-02-05 15:38:38,608 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_spec9_product25.cil.c[23488,23501] [2025-02-05 15:38:38,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:38:38,699 INFO L204 MainTranslator]: Completed translation [2025-02-05 15:38:38,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38 WrapperNode [2025-02-05 15:38:38,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 15:38:38,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 15:38:38,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 15:38:38,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 15:38:38,708 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,783 INFO L138 Inliner]: procedures = 91, calls = 331, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 801 [2025-02-05 15:38:38,787 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 15:38:38,787 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 15:38:38,787 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 15:38:38,788 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 15:38:38,799 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,810 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,833 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 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]. [2025-02-05 15:38:38,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,855 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,857 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,871 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 15:38:38,884 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 15:38:38,884 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 15:38:38,884 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 15:38:38,885 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (1/1) ... [2025-02-05 15:38:38,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:38:38,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:38:38,915 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) [2025-02-05 15:38:38,918 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 [2025-02-05 15:38:38,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 15:38:38,937 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-02-05 15:38:38,937 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-02-05 15:38:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-02-05 15:38:38,938 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-02-05 15:38:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-02-05 15:38:38,938 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-02-05 15:38:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-02-05 15:38:38,938 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-02-05 15:38:38,938 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-02-05 15:38:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-02-05 15:38:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-02-05 15:38:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-02-05 15:38:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-02-05 15:38:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-02-05 15:38:38,939 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-02-05 15:38:38,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-02-05 15:38:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-02-05 15:38:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-02-05 15:38:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-02-05 15:38:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-02-05 15:38:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-02-05 15:38:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-02-05 15:38:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-02-05 15:38:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-02-05 15:38:38,940 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-02-05 15:38:38,940 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-02-05 15:38:38,942 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-02-05 15:38:38,942 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-02-05 15:38:38,942 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-02-05 15:38:38,942 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-02-05 15:38:38,942 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-02-05 15:38:38,942 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2025-02-05 15:38:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-02-05 15:38:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-02-05 15:38:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-02-05 15:38:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 15:38:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 15:38:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-02-05 15:38:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-02-05 15:38:39,088 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 15:38:39,090 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 15:38:39,141 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L331: #res := ~retValue_acc~2; [2025-02-05 15:38:39,155 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L253: #res := ~retValue_acc~0; [2025-02-05 15:38:39,157 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1948: #res := ~retValue_acc~13; [2025-02-05 15:38:39,415 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2662: #res := ~retValue_acc~21; [2025-02-05 15:38:39,478 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2766: #res := ~retValue_acc~24; [2025-02-05 15:38:39,493 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L292: #res := ~retValue_acc~1; [2025-02-05 15:38:39,526 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2217: #res := ~retValue_acc~18; [2025-02-05 15:38:39,671 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2297-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~19#1; [2025-02-05 15:38:39,672 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2310-1: isIdle_#res#1 := isIdle_~retValue_acc~20#1; [2025-02-05 15:38:39,806 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2752-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~23#1; [2025-02-05 15:38:39,807 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2125-1: getCurrentFloorID_#res#1 := getCurrentFloorID_~retValue_acc~14#1; [2025-02-05 15:38:39,807 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2134-1: areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~15#1; [2025-02-05 15:38:39,807 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2168-1: buttonForFloorIsPressed_#res#1 := buttonForFloorIsPressed_~retValue_acc~16#1; [2025-02-05 15:38:39,857 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1528: #res := ~retValue_acc~9; [2025-02-05 15:38:39,925 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1163-1: main_#res#1 := main_~retValue_acc~7#1; [2025-02-05 15:38:39,926 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1874-1: valid_product_#res#1 := valid_product_~retValue_acc~12#1; [2025-02-05 15:38:39,934 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1292: #res := ~retValue_acc~8; [2025-02-05 15:38:39,938 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1839: #res := ~retValue_acc~10; [2025-02-05 15:38:40,056 INFO L? ?]: Removed 433 outVars from TransFormulas that were not future-live. [2025-02-05 15:38:40,056 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 15:38:40,077 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 15:38:40,077 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 15:38:40,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:38:40 BoogieIcfgContainer [2025-02-05 15:38:40,077 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 15:38:40,083 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 15:38:40,083 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 15:38:40,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 15:38:40,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 03:38:38" (1/3) ... [2025-02-05 15:38:40,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dedf45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:38:40, skipping insertion in model container [2025-02-05 15:38:40,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:38:38" (2/3) ... [2025-02-05 15:38:40,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21dedf45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:38:40, skipping insertion in model container [2025-02-05 15:38:40,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:38:40" (3/3) ... [2025-02-05 15:38:40,093 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product25.cil.c [2025-02-05 15:38:40,119 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 15:38:40,122 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec9_product25.cil.c that has 22 procedures, 532 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 15:38:40,214 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 15:38:40,231 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;@2be06d76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 15:38:40,232 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 15:38:40,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 532 states, 423 states have (on average 1.7139479905437351) internal successors, (725), 445 states have internal predecessors, (725), 85 states have call successors, (85), 21 states have call predecessors, (85), 21 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) [2025-02-05 15:38:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-02-05 15:38:40,280 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:40,281 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:40,282 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:40,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:40,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1031697081, now seen corresponding path program 1 times [2025-02-05 15:38:40,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:40,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235350891] [2025-02-05 15:38:40,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:40,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:40,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-05 15:38:40,512 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-05 15:38:40,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:40,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:40,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:40,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:40,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235350891] [2025-02-05 15:38:40,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235350891] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:40,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:40,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:38:40,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153791418] [2025-02-05 15:38:40,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:40,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:38:40,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:40,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:38:40,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:38:40,822 INFO L87 Difference]: Start difference. First operand has 532 states, 423 states have (on average 1.7139479905437351) internal successors, (725), 445 states have internal predecessors, (725), 85 states have call successors, (85), 21 states have call predecessors, (85), 21 states have return successors, (85), 79 states have call predecessors, (85), 85 states have call successors, (85) Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:40,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:40,925 INFO L93 Difference]: Finished difference Result 1044 states and 1764 transitions. [2025-02-05 15:38:40,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:38:40,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 94 [2025-02-05 15:38:40,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:40,939 INFO L225 Difference]: With dead ends: 1044 [2025-02-05 15:38:40,939 INFO L226 Difference]: Without dead ends: 523 [2025-02-05 15:38:40,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:38:40,947 INFO L435 NwaCegarLoop]: 875 mSDtfsCounter, 5 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2621 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:40,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2621 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:40,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2025-02-05 15:38:41,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2025-02-05 15:38:41,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 417 states have (on average 1.7074340527577938) internal successors, (712), 436 states have internal predecessors, (712), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:41,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 877 transitions. [2025-02-05 15:38:41,052 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 877 transitions. Word has length 94 [2025-02-05 15:38:41,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:41,053 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 877 transitions. [2025-02-05 15:38:41,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:41,054 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 877 transitions. [2025-02-05 15:38:41,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-02-05 15:38:41,064 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:41,065 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:41,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 15:38:41,065 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:41,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:41,066 INFO L85 PathProgramCache]: Analyzing trace with hash 357070808, now seen corresponding path program 1 times [2025-02-05 15:38:41,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:41,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831105106] [2025-02-05 15:38:41,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:41,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:41,096 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-02-05 15:38:41,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-02-05 15:38:41,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:41,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:41,307 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:41,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:41,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831105106] [2025-02-05 15:38:41,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831105106] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:41,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:41,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:38:41,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687960169] [2025-02-05 15:38:41,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:41,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:38:41,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:41,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:38:41,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:38:41,314 INFO L87 Difference]: Start difference. First operand 523 states and 877 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:41,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:41,374 INFO L93 Difference]: Finished difference Result 1028 states and 1731 transitions. [2025-02-05 15:38:41,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:38:41,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 95 [2025-02-05 15:38:41,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:41,379 INFO L225 Difference]: With dead ends: 1028 [2025-02-05 15:38:41,379 INFO L226 Difference]: Without dead ends: 523 [2025-02-05 15:38:41,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:38:41,382 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 4 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:41,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2594 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:41,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2025-02-05 15:38:41,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2025-02-05 15:38:41,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 417 states have (on average 1.7050359712230216) internal successors, (711), 436 states have internal predecessors, (711), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:41,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 876 transitions. [2025-02-05 15:38:41,404 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 876 transitions. Word has length 95 [2025-02-05 15:38:41,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:41,404 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 876 transitions. [2025-02-05 15:38:41,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:41,404 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 876 transitions. [2025-02-05 15:38:41,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-02-05 15:38:41,408 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:41,408 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:41,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 15:38:41,408 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:41,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:41,409 INFO L85 PathProgramCache]: Analyzing trace with hash 377015606, now seen corresponding path program 1 times [2025-02-05 15:38:41,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:41,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094633998] [2025-02-05 15:38:41,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:41,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:41,423 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-02-05 15:38:41,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-02-05 15:38:41,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:41,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:41,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:41,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:41,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094633998] [2025-02-05 15:38:41,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094633998] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:41,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:41,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:38:41,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701964028] [2025-02-05 15:38:41,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:41,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:38:41,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:41,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:38:41,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:38:41,563 INFO L87 Difference]: Start difference. First operand 523 states and 876 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:41,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:41,640 INFO L93 Difference]: Finished difference Result 1028 states and 1730 transitions. [2025-02-05 15:38:41,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:38:41,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2025-02-05 15:38:41,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:41,650 INFO L225 Difference]: With dead ends: 1028 [2025-02-05 15:38:41,650 INFO L226 Difference]: Without dead ends: 523 [2025-02-05 15:38:41,653 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:38:41,653 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 3 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:41,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2594 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:41,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2025-02-05 15:38:41,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2025-02-05 15:38:41,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 417 states have (on average 1.7026378896882495) internal successors, (710), 436 states have internal predecessors, (710), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:41,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 875 transitions. [2025-02-05 15:38:41,692 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 875 transitions. Word has length 96 [2025-02-05 15:38:41,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:41,693 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 875 transitions. [2025-02-05 15:38:41,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:41,694 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 875 transitions. [2025-02-05 15:38:41,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-02-05 15:38:41,701 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:41,701 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:41,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 15:38:41,701 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:41,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:41,703 INFO L85 PathProgramCache]: Analyzing trace with hash 453827125, now seen corresponding path program 1 times [2025-02-05 15:38:41,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:41,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081891226] [2025-02-05 15:38:41,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:41,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:41,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-02-05 15:38:41,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-02-05 15:38:41,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:41,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:41,863 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:41,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:41,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081891226] [2025-02-05 15:38:41,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081891226] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:41,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:41,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:38:41,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714204728] [2025-02-05 15:38:41,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:41,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:38:41,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:41,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:38:41,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:38:41,867 INFO L87 Difference]: Start difference. First operand 523 states and 875 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:41,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:41,916 INFO L93 Difference]: Finished difference Result 1028 states and 1729 transitions. [2025-02-05 15:38:41,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:38:41,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2025-02-05 15:38:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:41,921 INFO L225 Difference]: With dead ends: 1028 [2025-02-05 15:38:41,921 INFO L226 Difference]: Without dead ends: 523 [2025-02-05 15:38:41,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:38:41,924 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 2 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:41,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2594 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:41,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2025-02-05 15:38:41,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2025-02-05 15:38:41,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 417 states have (on average 1.7002398081534773) internal successors, (709), 436 states have internal predecessors, (709), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 874 transitions. [2025-02-05 15:38:41,954 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 874 transitions. Word has length 97 [2025-02-05 15:38:41,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:41,954 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 874 transitions. [2025-02-05 15:38:41,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:41,956 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 874 transitions. [2025-02-05 15:38:41,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-02-05 15:38:41,959 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:41,959 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:41,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 15:38:41,959 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:41,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:41,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2001460301, now seen corresponding path program 1 times [2025-02-05 15:38:41,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:41,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929542295] [2025-02-05 15:38:41,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:41,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:41,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-02-05 15:38:41,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-02-05 15:38:41,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:41,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:42,142 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:42,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:42,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929542295] [2025-02-05 15:38:42,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929542295] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:42,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:42,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:38:42,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915676622] [2025-02-05 15:38:42,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:42,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:38:42,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:42,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:38:42,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:38:42,144 INFO L87 Difference]: Start difference. First operand 523 states and 874 transitions. 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:42,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:42,182 INFO L93 Difference]: Finished difference Result 1028 states and 1728 transitions. [2025-02-05 15:38:42,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:38:42,183 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2025-02-05 15:38:42,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:42,186 INFO L225 Difference]: With dead ends: 1028 [2025-02-05 15:38:42,187 INFO L226 Difference]: Without dead ends: 523 [2025-02-05 15:38:42,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:38:42,189 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 1 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2594 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:42,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2594 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:42,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2025-02-05 15:38:42,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2025-02-05 15:38:42,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 417 states have (on average 1.6978417266187051) internal successors, (708), 436 states have internal predecessors, (708), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:42,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 873 transitions. [2025-02-05 15:38:42,208 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 873 transitions. Word has length 98 [2025-02-05 15:38:42,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:42,209 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 873 transitions. [2025-02-05 15:38:42,209 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:42,209 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 873 transitions. [2025-02-05 15:38:42,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-02-05 15:38:42,211 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:42,212 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:42,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 15:38:42,212 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:42,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:42,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1347436398, now seen corresponding path program 1 times [2025-02-05 15:38:42,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:42,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364932720] [2025-02-05 15:38:42,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:42,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:42,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-02-05 15:38:42,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-02-05 15:38:42,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:42,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:42,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:42,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:42,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364932720] [2025-02-05 15:38:42,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364932720] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:42,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:42,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-05 15:38:42,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7368359] [2025-02-05 15:38:42,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:42,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 15:38:42,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:42,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 15:38:42,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:38:42,431 INFO L87 Difference]: Start difference. First operand 523 states and 873 transitions. Second operand has 9 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-05 15:38:42,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:42,537 INFO L93 Difference]: Finished difference Result 994 states and 1660 transitions. [2025-02-05 15:38:42,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:38:42,538 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 99 [2025-02-05 15:38:42,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:42,542 INFO L225 Difference]: With dead ends: 994 [2025-02-05 15:38:42,542 INFO L226 Difference]: Without dead ends: 538 [2025-02-05 15:38:42,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:38:42,544 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 91 mSDsluCounter, 5944 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 6805 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:42,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 6805 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:38:42,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2025-02-05 15:38:42,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 536. [2025-02-05 15:38:42,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 427 states have (on average 1.693208430913349) internal successors, (723), 448 states have internal predecessors, (723), 86 states have call successors, (86), 21 states have call predecessors, (86), 22 states have return successors, (83), 79 states have call predecessors, (83), 81 states have call successors, (83) [2025-02-05 15:38:42,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 892 transitions. [2025-02-05 15:38:42,571 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 892 transitions. Word has length 99 [2025-02-05 15:38:42,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:42,571 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 892 transitions. [2025-02-05 15:38:42,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-05 15:38:42,572 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 892 transitions. [2025-02-05 15:38:42,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-02-05 15:38:42,575 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:42,575 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:42,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 15:38:42,575 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:42,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:42,575 INFO L85 PathProgramCache]: Analyzing trace with hash -564057423, now seen corresponding path program 1 times [2025-02-05 15:38:42,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:42,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811215801] [2025-02-05 15:38:42,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:42,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:42,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-02-05 15:38:42,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-02-05 15:38:42,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:42,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:42,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:42,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:42,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811215801] [2025-02-05 15:38:42,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811215801] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:42,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:42,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:38:42,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462452715] [2025-02-05 15:38:42,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:42,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:38:42,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:42,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:38:42,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:38:42,661 INFO L87 Difference]: Start difference. First operand 536 states and 892 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:42,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:42,701 INFO L93 Difference]: Finished difference Result 1046 states and 1754 transitions. [2025-02-05 15:38:42,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:38:42,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2025-02-05 15:38:42,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:42,710 INFO L225 Difference]: With dead ends: 1046 [2025-02-05 15:38:42,714 INFO L226 Difference]: Without dead ends: 517 [2025-02-05 15:38:42,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:38:42,722 INFO L435 NwaCegarLoop]: 867 mSDtfsCounter, 0 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2596 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:42,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2596 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:42,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2025-02-05 15:38:42,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2025-02-05 15:38:42,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 411 states have (on average 1.6885644768856447) internal successors, (694), 430 states have internal predecessors, (694), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:42,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 859 transitions. [2025-02-05 15:38:42,743 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 859 transitions. Word has length 99 [2025-02-05 15:38:42,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:42,744 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 859 transitions. [2025-02-05 15:38:42,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:42,744 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 859 transitions. [2025-02-05 15:38:42,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-02-05 15:38:42,748 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:42,748 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:42,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 15:38:42,748 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:42,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:42,748 INFO L85 PathProgramCache]: Analyzing trace with hash -478036344, now seen corresponding path program 1 times [2025-02-05 15:38:42,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:42,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124531469] [2025-02-05 15:38:42,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:42,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:42,765 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-02-05 15:38:42,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-02-05 15:38:42,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:42,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:42,869 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:42,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:42,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124531469] [2025-02-05 15:38:42,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124531469] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:42,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:42,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:38:42,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707330291] [2025-02-05 15:38:42,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:42,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:38:42,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:42,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:38:42,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:38:42,871 INFO L87 Difference]: Start difference. First operand 517 states and 859 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:43,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:43,052 INFO L93 Difference]: Finished difference Result 991 states and 1652 transitions. [2025-02-05 15:38:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:38:43,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2025-02-05 15:38:43,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:43,057 INFO L225 Difference]: With dead ends: 991 [2025-02-05 15:38:43,057 INFO L226 Difference]: Without dead ends: 526 [2025-02-05 15:38:43,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:38:43,060 INFO L435 NwaCegarLoop]: 816 mSDtfsCounter, 55 mSDsluCounter, 3235 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:43,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4051 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:38:43,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2025-02-05 15:38:43,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 517. [2025-02-05 15:38:43,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 411 states have (on average 1.6788321167883211) internal successors, (690), 430 states have internal predecessors, (690), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:43,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 855 transitions. [2025-02-05 15:38:43,113 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 855 transitions. Word has length 100 [2025-02-05 15:38:43,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:43,114 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 855 transitions. [2025-02-05 15:38:43,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:43,114 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 855 transitions. [2025-02-05 15:38:43,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-02-05 15:38:43,116 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:43,116 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:43,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 15:38:43,116 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:43,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:43,117 INFO L85 PathProgramCache]: Analyzing trace with hash 701787177, now seen corresponding path program 1 times [2025-02-05 15:38:43,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:43,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640013919] [2025-02-05 15:38:43,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:43,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:43,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-02-05 15:38:43,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-02-05 15:38:43,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:43,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:43,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:43,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:43,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640013919] [2025-02-05 15:38:43,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640013919] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:43,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:43,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:38:43,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240813139] [2025-02-05 15:38:43,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:43,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:38:43,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:43,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:38:43,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:38:43,230 INFO L87 Difference]: Start difference. First operand 517 states and 855 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:43,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:43,369 INFO L93 Difference]: Finished difference Result 991 states and 1648 transitions. [2025-02-05 15:38:43,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:38:43,369 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2025-02-05 15:38:43,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:43,373 INFO L225 Difference]: With dead ends: 991 [2025-02-05 15:38:43,373 INFO L226 Difference]: Without dead ends: 526 [2025-02-05 15:38:43,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:38:43,376 INFO L435 NwaCegarLoop]: 816 mSDtfsCounter, 54 mSDsluCounter, 3235 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:43,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4051 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:38:43,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2025-02-05 15:38:43,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 517. [2025-02-05 15:38:43,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 411 states have (on average 1.6690997566909975) internal successors, (686), 430 states have internal predecessors, (686), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:43,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 851 transitions. [2025-02-05 15:38:43,392 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 851 transitions. Word has length 101 [2025-02-05 15:38:43,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:43,393 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 851 transitions. [2025-02-05 15:38:43,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:43,393 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 851 transitions. [2025-02-05 15:38:43,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-02-05 15:38:43,395 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:43,395 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:43,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 15:38:43,395 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:43,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:43,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1565999787, now seen corresponding path program 1 times [2025-02-05 15:38:43,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:43,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709687123] [2025-02-05 15:38:43,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:43,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:43,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-05 15:38:43,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-05 15:38:43,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:43,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:43,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:43,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:43,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709687123] [2025-02-05 15:38:43,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709687123] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:43,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:43,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:38:43,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498290999] [2025-02-05 15:38:43,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:43,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:38:43,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:43,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:38:43,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:38:43,514 INFO L87 Difference]: Start difference. First operand 517 states and 851 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:43,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:43,645 INFO L93 Difference]: Finished difference Result 991 states and 1644 transitions. [2025-02-05 15:38:43,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:38:43,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2025-02-05 15:38:43,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:43,650 INFO L225 Difference]: With dead ends: 991 [2025-02-05 15:38:43,650 INFO L226 Difference]: Without dead ends: 526 [2025-02-05 15:38:43,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:38:43,653 INFO L435 NwaCegarLoop]: 815 mSDtfsCounter, 53 mSDsluCounter, 3218 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4033 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:43,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4033 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:38:43,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2025-02-05 15:38:43,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 517. [2025-02-05 15:38:43,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 411 states have (on average 1.659367396593674) internal successors, (682), 430 states have internal predecessors, (682), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:43,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 847 transitions. [2025-02-05 15:38:43,671 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 847 transitions. Word has length 102 [2025-02-05 15:38:43,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:43,672 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 847 transitions. [2025-02-05 15:38:43,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:43,672 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 847 transitions. [2025-02-05 15:38:43,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-02-05 15:38:43,674 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:43,675 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:43,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 15:38:43,675 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:43,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:43,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1427541222, now seen corresponding path program 1 times [2025-02-05 15:38:43,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:43,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616267582] [2025-02-05 15:38:43,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:43,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:43,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-02-05 15:38:43,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-02-05 15:38:43,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:43,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:43,821 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:43,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:43,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616267582] [2025-02-05 15:38:43,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616267582] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:43,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:43,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 15:38:43,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703562984] [2025-02-05 15:38:43,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:43,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:38:43,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:43,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:38:43,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:38:43,823 INFO L87 Difference]: Start difference. First operand 517 states and 847 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-05 15:38:43,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:43,881 INFO L93 Difference]: Finished difference Result 982 states and 1626 transitions. [2025-02-05 15:38:43,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:38:43,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2025-02-05 15:38:43,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:43,885 INFO L225 Difference]: With dead ends: 982 [2025-02-05 15:38:43,885 INFO L226 Difference]: Without dead ends: 496 [2025-02-05 15:38:43,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:38:43,888 INFO L435 NwaCegarLoop]: 836 mSDtfsCounter, 84 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 4943 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:43,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 4943 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:43,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2025-02-05 15:38:43,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2025-02-05 15:38:43,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 390 states have (on average 1.6615384615384616) internal successors, (648), 409 states have internal predecessors, (648), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 813 transitions. [2025-02-05 15:38:43,904 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 813 transitions. Word has length 102 [2025-02-05 15:38:43,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:43,904 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 813 transitions. [2025-02-05 15:38:43,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-05 15:38:43,904 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 813 transitions. [2025-02-05 15:38:43,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-02-05 15:38:43,906 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:43,907 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:43,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-05 15:38:43,907 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:43,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:43,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1236208748, now seen corresponding path program 1 times [2025-02-05 15:38:43,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:43,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576732296] [2025-02-05 15:38:43,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:43,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:43,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-02-05 15:38:43,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-02-05 15:38:43,927 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:43,927 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:44,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:44,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:44,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576732296] [2025-02-05 15:38:44,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576732296] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:44,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:44,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:38:44,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660906242] [2025-02-05 15:38:44,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:44,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:38:44,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:44,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:38:44,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:38:44,006 INFO L87 Difference]: Start difference. First operand 496 states and 813 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:44,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:44,062 INFO L93 Difference]: Finished difference Result 961 states and 1592 transitions. [2025-02-05 15:38:44,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:38:44,063 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2025-02-05 15:38:44,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:44,066 INFO L225 Difference]: With dead ends: 961 [2025-02-05 15:38:44,067 INFO L226 Difference]: Without dead ends: 496 [2025-02-05 15:38:44,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:38:44,069 INFO L435 NwaCegarLoop]: 796 mSDtfsCounter, 17 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:44,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3971 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:44,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2025-02-05 15:38:44,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2025-02-05 15:38:44,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 390 states have (on average 1.658974358974359) internal successors, (647), 409 states have internal predecessors, (647), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 812 transitions. [2025-02-05 15:38:44,084 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 812 transitions. Word has length 103 [2025-02-05 15:38:44,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:44,084 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 812 transitions. [2025-02-05 15:38:44,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:44,084 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 812 transitions. [2025-02-05 15:38:44,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-02-05 15:38:44,087 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:44,087 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:44,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-05 15:38:44,087 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:44,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:44,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1747957042, now seen corresponding path program 1 times [2025-02-05 15:38:44,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:44,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839587735] [2025-02-05 15:38:44,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:44,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:44,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-02-05 15:38:44,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-02-05 15:38:44,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:44,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:44,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:44,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839587735] [2025-02-05 15:38:44,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839587735] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:44,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:44,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:38:44,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061976272] [2025-02-05 15:38:44,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:44,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:38:44,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:44,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:38:44,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:38:44,192 INFO L87 Difference]: Start difference. First operand 496 states and 812 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:44,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:44,250 INFO L93 Difference]: Finished difference Result 961 states and 1591 transitions. [2025-02-05 15:38:44,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:38:44,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2025-02-05 15:38:44,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:44,254 INFO L225 Difference]: With dead ends: 961 [2025-02-05 15:38:44,254 INFO L226 Difference]: Without dead ends: 496 [2025-02-05 15:38:44,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:38:44,256 INFO L435 NwaCegarLoop]: 796 mSDtfsCounter, 16 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:44,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 3971 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:44,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2025-02-05 15:38:44,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2025-02-05 15:38:44,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 390 states have (on average 1.6564102564102565) internal successors, (646), 409 states have internal predecessors, (646), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:44,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 811 transitions. [2025-02-05 15:38:44,289 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 811 transitions. Word has length 104 [2025-02-05 15:38:44,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:44,289 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 811 transitions. [2025-02-05 15:38:44,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:44,289 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 811 transitions. [2025-02-05 15:38:44,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-02-05 15:38:44,292 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:44,292 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:44,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-05 15:38:44,292 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:44,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:44,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1118394193, now seen corresponding path program 1 times [2025-02-05 15:38:44,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:44,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906914109] [2025-02-05 15:38:44,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:44,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:44,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-02-05 15:38:44,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-02-05 15:38:44,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:44,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:38:44,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:44,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906914109] [2025-02-05 15:38:44,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906914109] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:44,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:38:44,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-05 15:38:44,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675215547] [2025-02-05 15:38:44,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:44,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-05 15:38:44,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:44,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-05 15:38:44,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:38:44,508 INFO L87 Difference]: Start difference. First operand 496 states and 811 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-05 15:38:44,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:44,598 INFO L93 Difference]: Finished difference Result 955 states and 1579 transitions. [2025-02-05 15:38:44,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:38:44,598 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2025-02-05 15:38:44,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:44,602 INFO L225 Difference]: With dead ends: 955 [2025-02-05 15:38:44,602 INFO L226 Difference]: Without dead ends: 496 [2025-02-05 15:38:44,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:38:44,604 INFO L435 NwaCegarLoop]: 795 mSDtfsCounter, 6 mSDsluCounter, 6338 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7133 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:44,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7133 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:38:44,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2025-02-05 15:38:44,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2025-02-05 15:38:44,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 390 states have (on average 1.6538461538461537) internal successors, (645), 409 states have internal predecessors, (645), 85 states have call successors, (85), 21 states have call predecessors, (85), 20 states have return successors, (80), 78 states have call predecessors, (80), 80 states have call successors, (80) [2025-02-05 15:38:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 810 transitions. [2025-02-05 15:38:44,618 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 810 transitions. Word has length 105 [2025-02-05 15:38:44,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:44,618 INFO L471 AbstractCegarLoop]: Abstraction has 496 states and 810 transitions. [2025-02-05 15:38:44,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-05 15:38:44,618 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 810 transitions. [2025-02-05 15:38:44,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-02-05 15:38:44,620 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:44,620 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:44,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-05 15:38:44,620 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:44,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:44,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1934464223, now seen corresponding path program 1 times [2025-02-05 15:38:44,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:44,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234847512] [2025-02-05 15:38:44,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:44,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:44,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-02-05 15:38:44,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-02-05 15:38:44,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:44,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:44,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-05 15:38:44,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:44,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234847512] [2025-02-05 15:38:44,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234847512] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:38:44,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192047416] [2025-02-05 15:38:44,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:44,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:38:44,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:38:44,794 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) [2025-02-05 15:38:44,796 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 [2025-02-05 15:38:44,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-02-05 15:38:45,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-02-05 15:38:45,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:45,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:45,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:38:45,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:38:45,130 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:38:45,130 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:38:45,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192047416] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:45,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:38:45,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-02-05 15:38:45,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634320346] [2025-02-05 15:38:45,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:45,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:38:45,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:45,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:38:45,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:38:45,132 INFO L87 Difference]: Start difference. First operand 496 states and 810 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:45,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:45,170 INFO L93 Difference]: Finished difference Result 1389 states and 2327 transitions. [2025-02-05 15:38:45,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:38:45,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2025-02-05 15:38:45,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:45,179 INFO L225 Difference]: With dead ends: 1389 [2025-02-05 15:38:45,179 INFO L226 Difference]: Without dead ends: 938 [2025-02-05 15:38:45,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:38:45,181 INFO L435 NwaCegarLoop]: 929 mSDtfsCounter, 778 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:45,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 1678 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:45,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2025-02-05 15:38:45,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 936. [2025-02-05 15:38:45,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 738 states have (on average 1.6775067750677506) internal successors, (1238), 771 states have internal predecessors, (1238), 160 states have call successors, (160), 37 states have call predecessors, (160), 37 states have return successors, (165), 153 states have call predecessors, (165), 155 states have call successors, (165) [2025-02-05 15:38:45,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1563 transitions. [2025-02-05 15:38:45,209 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1563 transitions. Word has length 106 [2025-02-05 15:38:45,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:45,209 INFO L471 AbstractCegarLoop]: Abstraction has 936 states and 1563 transitions. [2025-02-05 15:38:45,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:45,209 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1563 transitions. [2025-02-05 15:38:45,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-02-05 15:38:45,212 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:45,212 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:45,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-05 15:38:45,412 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,SelfDestructingSolverStorable14 [2025-02-05 15:38:45,413 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:45,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:45,413 INFO L85 PathProgramCache]: Analyzing trace with hash 160992874, now seen corresponding path program 1 times [2025-02-05 15:38:45,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:45,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851502983] [2025-02-05 15:38:45,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:45,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:45,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-02-05 15:38:45,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-02-05 15:38:45,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:45,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:45,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-05 15:38:45,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:45,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851502983] [2025-02-05 15:38:45,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851502983] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:38:45,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238065137] [2025-02-05 15:38:45,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:45,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:38:45,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:38:45,602 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) [2025-02-05 15:38:45,607 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 [2025-02-05 15:38:45,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-02-05 15:38:45,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-02-05 15:38:45,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:45,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:45,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:38:45,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:38:45,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:38:45,935 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:38:45,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238065137] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:45,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:38:45,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-02-05 15:38:45,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033055681] [2025-02-05 15:38:45,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:45,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:38:45,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:45,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:38:45,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:38:45,937 INFO L87 Difference]: Start difference. First operand 936 states and 1563 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:46,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:46,004 INFO L93 Difference]: Finished difference Result 2711 states and 4604 transitions. [2025-02-05 15:38:46,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:38:46,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2025-02-05 15:38:46,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:46,019 INFO L225 Difference]: With dead ends: 2711 [2025-02-05 15:38:46,019 INFO L226 Difference]: Without dead ends: 1820 [2025-02-05 15:38:46,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:38:46,025 INFO L435 NwaCegarLoop]: 884 mSDtfsCounter, 777 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:46,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 1636 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:46,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2025-02-05 15:38:46,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1817. [2025-02-05 15:38:46,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1817 states, 1435 states have (on average 1.6898954703832754) internal successors, (2425), 1496 states have internal predecessors, (2425), 310 states have call successors, (310), 69 states have call predecessors, (310), 71 states have return successors, (347), 303 states have call predecessors, (347), 305 states have call successors, (347) [2025-02-05 15:38:46,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1817 states to 1817 states and 3082 transitions. [2025-02-05 15:38:46,094 INFO L78 Accepts]: Start accepts. Automaton has 1817 states and 3082 transitions. Word has length 107 [2025-02-05 15:38:46,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:46,095 INFO L471 AbstractCegarLoop]: Abstraction has 1817 states and 3082 transitions. [2025-02-05 15:38:46,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:46,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1817 states and 3082 transitions. [2025-02-05 15:38:46,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-02-05 15:38:46,098 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:46,098 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:46,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-05 15:38:46,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-02-05 15:38:46,298 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:46,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:46,299 INFO L85 PathProgramCache]: Analyzing trace with hash 695649659, now seen corresponding path program 1 times [2025-02-05 15:38:46,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:46,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480372923] [2025-02-05 15:38:46,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:46,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:46,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-02-05 15:38:46,320 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-02-05 15:38:46,320 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:46,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:46,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-05 15:38:46,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:46,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480372923] [2025-02-05 15:38:46,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480372923] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:38:46,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159154799] [2025-02-05 15:38:46,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:46,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:38:46,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:38:46,502 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) [2025-02-05 15:38:46,503 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 [2025-02-05 15:38:46,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-02-05 15:38:46,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-02-05 15:38:46,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:46,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:46,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 1434 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:38:46,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:38:46,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:38:46,784 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:38:46,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159154799] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:46,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:38:46,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-02-05 15:38:46,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689894319] [2025-02-05 15:38:46,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:46,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:38:46,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:46,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:38:46,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:38:46,786 INFO L87 Difference]: Start difference. First operand 1817 states and 3082 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:46,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:46,877 INFO L93 Difference]: Finished difference Result 5356 states and 9212 transitions. [2025-02-05 15:38:46,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:38:46,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2025-02-05 15:38:46,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:46,898 INFO L225 Difference]: With dead ends: 5356 [2025-02-05 15:38:46,898 INFO L226 Difference]: Without dead ends: 3584 [2025-02-05 15:38:46,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:38:46,908 INFO L435 NwaCegarLoop]: 873 mSDtfsCounter, 776 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:46,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 1628 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:46,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2025-02-05 15:38:47,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3580. [2025-02-05 15:38:47,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3580 states, 2830 states have (on average 1.6957597173144876) internal successors, (4799), 2947 states have internal predecessors, (4799), 610 states have call successors, (610), 133 states have call predecessors, (610), 139 states have return successors, (747), 603 states have call predecessors, (747), 605 states have call successors, (747) [2025-02-05 15:38:47,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3580 states to 3580 states and 6156 transitions. [2025-02-05 15:38:47,040 INFO L78 Accepts]: Start accepts. Automaton has 3580 states and 6156 transitions. Word has length 108 [2025-02-05 15:38:47,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:47,040 INFO L471 AbstractCegarLoop]: Abstraction has 3580 states and 6156 transitions. [2025-02-05 15:38:47,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:47,041 INFO L276 IsEmpty]: Start isEmpty. Operand 3580 states and 6156 transitions. [2025-02-05 15:38:47,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-02-05 15:38:47,043 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:47,043 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:47,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-05 15:38:47,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:38:47,248 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:47,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:47,248 INFO L85 PathProgramCache]: Analyzing trace with hash 90137028, now seen corresponding path program 1 times [2025-02-05 15:38:47,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:47,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019019242] [2025-02-05 15:38:47,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:47,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:47,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-02-05 15:38:47,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-02-05 15:38:47,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:47,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-05 15:38:47,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:47,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019019242] [2025-02-05 15:38:47,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019019242] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:38:47,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031846060] [2025-02-05 15:38:47,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:47,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:38:47,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:38:47,441 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) [2025-02-05 15:38:47,443 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 [2025-02-05 15:38:47,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-02-05 15:38:47,666 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-02-05 15:38:47,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:47,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:47,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:38:47,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:38:47,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:38:47,714 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:38:47,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031846060] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:47,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:38:47,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-02-05 15:38:47,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452672454] [2025-02-05 15:38:47,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:47,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:38:47,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:47,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:38:47,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:38:47,715 INFO L87 Difference]: Start difference. First operand 3580 states and 6156 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:47,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:47,889 INFO L93 Difference]: Finished difference Result 10647 states and 18605 transitions. [2025-02-05 15:38:47,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:38:47,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2025-02-05 15:38:47,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:47,993 INFO L225 Difference]: With dead ends: 10647 [2025-02-05 15:38:47,993 INFO L226 Difference]: Without dead ends: 7112 [2025-02-05 15:38:48,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:38:48,007 INFO L435 NwaCegarLoop]: 862 mSDtfsCounter, 774 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:48,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1618 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:48,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7112 states. [2025-02-05 15:38:48,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7112 to 7107. [2025-02-05 15:38:48,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7107 states, 5621 states have (on average 1.6980964241238214) internal successors, (9545), 5850 states have internal predecessors, (9545), 1210 states have call successors, (1210), 261 states have call predecessors, (1210), 275 states have return successors, (1667), 1203 states have call predecessors, (1667), 1205 states have call successors, (1667) [2025-02-05 15:38:48,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7107 states to 7107 states and 12422 transitions. [2025-02-05 15:38:48,288 INFO L78 Accepts]: Start accepts. Automaton has 7107 states and 12422 transitions. Word has length 109 [2025-02-05 15:38:48,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:48,289 INFO L471 AbstractCegarLoop]: Abstraction has 7107 states and 12422 transitions. [2025-02-05 15:38:48,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:48,289 INFO L276 IsEmpty]: Start isEmpty. Operand 7107 states and 12422 transitions. [2025-02-05 15:38:48,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-02-05 15:38:48,292 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:48,292 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-02-05 15:38:48,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-05 15:38:48,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-05 15:38:48,493 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:48,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:48,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1500889131, now seen corresponding path program 1 times [2025-02-05 15:38:48,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:48,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323987905] [2025-02-05 15:38:48,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:48,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:48,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-02-05 15:38:48,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-02-05 15:38:48,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:48,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:48,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-05 15:38:48,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:48,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323987905] [2025-02-05 15:38:48,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323987905] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:38:48,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130995199] [2025-02-05 15:38:48,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:48,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:38:48,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:38:48,657 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) [2025-02-05 15:38:48,659 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 [2025-02-05 15:38:48,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-02-05 15:38:48,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-02-05 15:38:48,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:48,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:48,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:38:48,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:38:48,993 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:38:48,994 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:38:48,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130995199] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:48,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:38:48,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-02-05 15:38:48,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853293] [2025-02-05 15:38:48,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:48,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:38:48,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:48,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:38:48,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:38:48,995 INFO L87 Difference]: Start difference. First operand 7107 states and 12422 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:49,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:49,291 INFO L93 Difference]: Finished difference Result 21230 states and 38029 transitions. [2025-02-05 15:38:49,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:38:49,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2025-02-05 15:38:49,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:49,384 INFO L225 Difference]: With dead ends: 21230 [2025-02-05 15:38:49,385 INFO L226 Difference]: Without dead ends: 14160 [2025-02-05 15:38:49,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:38:49,422 INFO L435 NwaCegarLoop]: 899 mSDtfsCounter, 773 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:49,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 1659 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:38:49,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14160 states. [2025-02-05 15:38:49,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14160 to 14154. [2025-02-05 15:38:49,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14154 states, 11197 states have (on average 1.6985799767794945) internal successors, (19019), 11650 states have internal predecessors, (19019), 2410 states have call successors, (2410), 517 states have call predecessors, (2410), 546 states have return successors, (3938), 2402 states have call predecessors, (3938), 2405 states have call successors, (3938) [2025-02-05 15:38:49,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14154 states to 14154 states and 25367 transitions. [2025-02-05 15:38:49,971 INFO L78 Accepts]: Start accepts. Automaton has 14154 states and 25367 transitions. Word has length 110 [2025-02-05 15:38:49,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:49,972 INFO L471 AbstractCegarLoop]: Abstraction has 14154 states and 25367 transitions. [2025-02-05 15:38:49,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-02-05 15:38:49,972 INFO L276 IsEmpty]: Start isEmpty. Operand 14154 states and 25367 transitions. [2025-02-05 15:38:49,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2025-02-05 15:38:49,991 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:49,991 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:38:49,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-05 15:38:50,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:38:50,192 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:50,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:50,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1037070353, now seen corresponding path program 1 times [2025-02-05 15:38:50,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:50,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984393010] [2025-02-05 15:38:50,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:50,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:50,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 191 statements into 1 equivalence classes. [2025-02-05 15:38:50,214 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 191 of 191 statements. [2025-02-05 15:38:50,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:50,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:50,462 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-02-05 15:38:50,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:50,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984393010] [2025-02-05 15:38:50,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984393010] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:38:50,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872140807] [2025-02-05 15:38:50,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:50,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:38:50,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:38:50,468 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) [2025-02-05 15:38:50,469 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 [2025-02-05 15:38:50,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 191 statements into 1 equivalence classes. [2025-02-05 15:38:50,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 191 of 191 statements. [2025-02-05 15:38:50,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:50,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:50,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 1920 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:38:50,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:38:50,805 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-02-05 15:38:50,805 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:38:50,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872140807] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:38:50,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:38:50,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2025-02-05 15:38:50,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094973660] [2025-02-05 15:38:50,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:38:50,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:38:50,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:50,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:38:50,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:38:50,807 INFO L87 Difference]: Start difference. First operand 14154 states and 25367 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-05 15:38:51,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:38:51,464 INFO L93 Difference]: Finished difference Result 29703 states and 54524 transitions. [2025-02-05 15:38:51,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:38:51,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 191 [2025-02-05 15:38:51,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:38:51,567 INFO L225 Difference]: With dead ends: 29703 [2025-02-05 15:38:51,567 INFO L226 Difference]: Without dead ends: 15594 [2025-02-05 15:38:51,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-05 15:38:51,644 INFO L435 NwaCegarLoop]: 749 mSDtfsCounter, 144 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:38:51,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2224 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:38:51,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15594 states. [2025-02-05 15:38:52,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15594 to 15402. [2025-02-05 15:38:52,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15402 states, 12413 states have (on average 1.7203738016595505) internal successors, (21355), 12866 states have internal predecessors, (21355), 2410 states have call successors, (2410), 549 states have call predecessors, (2410), 578 states have return successors, (3938), 2402 states have call predecessors, (3938), 2405 states have call successors, (3938) [2025-02-05 15:38:52,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15402 states to 15402 states and 27703 transitions. [2025-02-05 15:38:52,261 INFO L78 Accepts]: Start accepts. Automaton has 15402 states and 27703 transitions. Word has length 191 [2025-02-05 15:38:52,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:38:52,262 INFO L471 AbstractCegarLoop]: Abstraction has 15402 states and 27703 transitions. [2025-02-05 15:38:52,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-02-05 15:38:52,263 INFO L276 IsEmpty]: Start isEmpty. Operand 15402 states and 27703 transitions. [2025-02-05 15:38:52,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2025-02-05 15:38:52,285 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:38:52,285 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:38:52,297 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 [2025-02-05 15:38:52,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:38:52,489 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:38:52,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:38:52,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1151791674, now seen corresponding path program 1 times [2025-02-05 15:38:52,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:38:52,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206968317] [2025-02-05 15:38:52,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:52,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:38:52,511 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 255 statements into 1 equivalence classes. [2025-02-05 15:38:52,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 255 of 255 statements. [2025-02-05 15:38:52,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:52,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:52,816 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2025-02-05 15:38:52,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:38:52,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206968317] [2025-02-05 15:38:52,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206968317] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:38:52,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874664939] [2025-02-05 15:38:52,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:38:52,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:38:52,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:38:52,819 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) [2025-02-05 15:38:52,827 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 [2025-02-05 15:38:52,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 255 statements into 1 equivalence classes. [2025-02-05 15:38:53,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 255 of 255 statements. [2025-02-05 15:38:53,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:38:53,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:38:53,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 2335 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-05 15:38:53,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:38:53,278 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2025-02-05 15:38:53,279 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 15:38:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2025-02-05 15:38:53,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874664939] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 15:38:53,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 15:38:53,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 6] total 14 [2025-02-05 15:38:53,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279852198] [2025-02-05 15:38:53,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 15:38:53,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-05 15:38:53,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:38:53,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-05 15:38:53,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2025-02-05 15:38:53,646 INFO L87 Difference]: Start difference. First operand 15402 states and 27703 transitions. Second operand has 14 states, 14 states have (on average 17.5) internal successors, (245), 13 states have internal predecessors, (245), 9 states have call successors, (49), 6 states have call predecessors, (49), 8 states have return successors, (47), 11 states have call predecessors, (47), 8 states have call successors, (47) [2025-02-05 15:39:00,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:00,278 INFO L93 Difference]: Finished difference Result 59074 states and 119518 transitions. [2025-02-05 15:39:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-05 15:39:00,279 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.5) internal successors, (245), 13 states have internal predecessors, (245), 9 states have call successors, (49), 6 states have call predecessors, (49), 8 states have return successors, (47), 11 states have call predecessors, (47), 8 states have call successors, (47) Word has length 255 [2025-02-05 15:39:00,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:00,665 INFO L225 Difference]: With dead ends: 59074 [2025-02-05 15:39:00,666 INFO L226 Difference]: Without dead ends: 43717 [2025-02-05 15:39:00,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 514 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2025-02-05 15:39:00,792 INFO L435 NwaCegarLoop]: 703 mSDtfsCounter, 5429 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 9289 mSolverCounterSat, 1947 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5429 SdHoareTripleChecker+Valid, 3992 SdHoareTripleChecker+Invalid, 11236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1947 IncrementalHoareTripleChecker+Valid, 9289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:00,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5429 Valid, 3992 Invalid, 11236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1947 Valid, 9289 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2025-02-05 15:39:00,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43717 states. [2025-02-05 15:39:02,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43717 to 36746. [2025-02-05 15:39:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36746 states, 28317 states have (on average 1.6858424268107497) internal successors, (47738), 29794 states have internal predecessors, (47738), 7114 states have call successors, (7114), 1093 states have call predecessors, (7114), 1314 states have return successors, (14674), 7202 states have call predecessors, (14674), 7109 states have call successors, (14674) [2025-02-05 15:39:02,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36746 states to 36746 states and 69526 transitions. [2025-02-05 15:39:02,946 INFO L78 Accepts]: Start accepts. Automaton has 36746 states and 69526 transitions. Word has length 255 [2025-02-05 15:39:02,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:02,947 INFO L471 AbstractCegarLoop]: Abstraction has 36746 states and 69526 transitions. [2025-02-05 15:39:02,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.5) internal successors, (245), 13 states have internal predecessors, (245), 9 states have call successors, (49), 6 states have call predecessors, (49), 8 states have return successors, (47), 11 states have call predecessors, (47), 8 states have call successors, (47) [2025-02-05 15:39:02,947 INFO L276 IsEmpty]: Start isEmpty. Operand 36746 states and 69526 transitions. [2025-02-05 15:39:02,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2025-02-05 15:39:02,981 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:02,981 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:02,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-05 15:39:03,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:03,182 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:03,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:03,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1994616907, now seen corresponding path program 1 times [2025-02-05 15:39:03,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:03,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151388499] [2025-02-05 15:39:03,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:03,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:03,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 258 statements into 1 equivalence classes. [2025-02-05 15:39:03,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 258 of 258 statements. [2025-02-05 15:39:03,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:03,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:03,552 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2025-02-05 15:39:03,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:03,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151388499] [2025-02-05 15:39:03,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151388499] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:39:03,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516237988] [2025-02-05 15:39:03,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:03,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:03,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:39:03,558 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) [2025-02-05 15:39:03,560 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 [2025-02-05 15:39:03,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 258 statements into 1 equivalence classes. [2025-02-05 15:39:03,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 258 of 258 statements. [2025-02-05 15:39:03,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:03,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:03,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 2338 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-05 15:39:03,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:39:04,060 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2025-02-05 15:39:04,060 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 15:39:04,550 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2025-02-05 15:39:04,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516237988] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 15:39:04,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 15:39:04,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 13 [2025-02-05 15:39:04,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418108395] [2025-02-05 15:39:04,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 15:39:04,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-05 15:39:04,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:04,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-05 15:39:04,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:39:04,552 INFO L87 Difference]: Start difference. First operand 36746 states and 69526 transitions. Second operand has 13 states, 13 states have (on average 18.0) internal successors, (234), 13 states have internal predecessors, (234), 9 states have call successors, (47), 6 states have call predecessors, (47), 7 states have return successors, (45), 9 states have call predecessors, (45), 8 states have call successors, (45) [2025-02-05 15:39:33,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:33,083 INFO L93 Difference]: Finished difference Result 375995 states and 848534 transitions. [2025-02-05 15:39:33,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2025-02-05 15:39:33,084 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 18.0) internal successors, (234), 13 states have internal predecessors, (234), 9 states have call successors, (47), 6 states have call predecessors, (47), 7 states have return successors, (45), 9 states have call predecessors, (45), 8 states have call successors, (45) Word has length 258 [2025-02-05 15:39:33,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:37,713 INFO L225 Difference]: With dead ends: 375995 [2025-02-05 15:39:37,713 INFO L226 Difference]: Without dead ends: 339294 [2025-02-05 15:39:38,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 541 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=526, Invalid=2336, Unknown=0, NotChecked=0, Total=2862 [2025-02-05 15:39:38,844 INFO L435 NwaCegarLoop]: 1315 mSDtfsCounter, 12538 mSDsluCounter, 6066 mSDsCounter, 0 mSdLazyCounter, 14793 mSolverCounterSat, 4450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12550 SdHoareTripleChecker+Valid, 7381 SdHoareTripleChecker+Invalid, 19243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4450 IncrementalHoareTripleChecker+Valid, 14793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:38,844 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12550 Valid, 7381 Invalid, 19243 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4450 Valid, 14793 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2025-02-05 15:39:39,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339294 states.