./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec13_product31.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_spec13_product31.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 2e77838346608929bef5ad1e655ea0710d74ebb9f10b29169ab985d305812d92 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 15:30:49,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 15:30:49,857 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 15:30:49,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 15:30:49,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 15:30:49,896 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 15:30:49,897 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 15:30:49,897 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 15:30:49,897 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 15:30:49,898 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 15:30:49,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 15:30:49,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 15:30:49,899 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 15:30:49,899 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 15:30:49,900 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 15:30:49,900 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 15:30:49,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 15:30:49,900 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 15:30:49,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 15:30:49,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 15:30:49,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 15:30:49,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 15:30:49,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 15:30:49,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 15:30:49,901 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 15:30:49,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 15:30:49,901 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 15:30:49,901 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 15:30:49,902 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 15:30:49,902 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 15:30:49,902 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 15:30:49,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 15:30:49,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:30:49,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 15:30:49,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 15:30:49,903 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 15:30:49,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 15:30:49,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 15:30:49,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 15:30:49,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 15:30:49,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 15:30:49,904 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 15:30:49,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 15:30:49,904 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 -> 2e77838346608929bef5ad1e655ea0710d74ebb9f10b29169ab985d305812d92 [2025-02-05 15:30:50,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 15:30:50,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 15:30:50,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 15:30:50,209 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 15:30:50,209 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 15:30:50,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product31.cil.c [2025-02-05 15:30:51,496 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8629863d8/12e6180d03334e1e95981be47b79cae6/FLAGe258d1a8c [2025-02-05 15:30:51,844 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 15:30:51,844 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product31.cil.c [2025-02-05 15:30:51,866 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8629863d8/12e6180d03334e1e95981be47b79cae6/FLAGe258d1a8c [2025-02-05 15:30:52,069 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8629863d8/12e6180d03334e1e95981be47b79cae6 [2025-02-05 15:30:52,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 15:30:52,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 15:30:52,074 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 15:30:52,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 15:30:52,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 15:30:52,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:52,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5421906c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52, skipping insertion in model container [2025-02-05 15:30:52,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:52,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 15:30:52,293 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product31.cil.c[1546,1559] [2025-02-05 15:30:52,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:30:52,685 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 15:30:52,692 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2025-02-05 15:30:52,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [57] [2025-02-05 15:30:52,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [423] [2025-02-05 15:30:52,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [517] [2025-02-05 15:30:52,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [638] [2025-02-05 15:30:52,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1306] [2025-02-05 15:30:52,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1664] [2025-02-05 15:30:52,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1679] [2025-02-05 15:30:52,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1714] [2025-02-05 15:30:52,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3329] [2025-02-05 15:30:52,702 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product31.cil.c[1546,1559] [2025-02-05 15:30:52,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:30:52,829 INFO L204 MainTranslator]: Completed translation [2025-02-05 15:30:52,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52 WrapperNode [2025-02-05 15:30:52,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 15:30:52,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 15:30:52,831 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 15:30:52,831 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 15:30:52,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:52,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:52,907 INFO L138 Inliner]: procedures = 95, calls = 348, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 913 [2025-02-05 15:30:52,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 15:30:52,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 15:30:52,912 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 15:30:52,912 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 15:30:52,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:52,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:52,935 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:52,980 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 15:30:52,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:52,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:53,008 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:53,011 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:53,019 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:53,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:53,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 15:30:53,043 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 15:30:53,043 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 15:30:53,043 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 15:30:53,044 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (1/1) ... [2025-02-05 15:30:53,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:30:53,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:30:53,078 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 15:30:53,081 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 15:30:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2025-02-05 15:30:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2025-02-05 15:30:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 15:30:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-02-05 15:30:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-02-05 15:30:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2025-02-05 15:30:53,104 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2025-02-05 15:30:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-02-05 15:30:53,105 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-02-05 15:30:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2025-02-05 15:30:53,105 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2025-02-05 15:30:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-02-05 15:30:53,106 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-02-05 15:30:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-02-05 15:30:53,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-02-05 15:30:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-02-05 15:30:53,106 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-02-05 15:30:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2025-02-05 15:30:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2025-02-05 15:30:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-02-05 15:30:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-02-05 15:30:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2025-02-05 15:30:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2025-02-05 15:30:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-02-05 15:30:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-02-05 15:30:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-02-05 15:30:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-02-05 15:30:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-02-05 15:30:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-02-05 15:30:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-02-05 15:30:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-02-05 15:30:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-02-05 15:30:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-02-05 15:30:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-02-05 15:30:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-02-05 15:30:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-02-05 15:30:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-02-05 15:30:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-02-05 15:30:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-02-05 15:30:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-02-05 15:30:53,108 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-02-05 15:30:53,109 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-02-05 15:30:53,109 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-02-05 15:30:53,109 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-02-05 15:30:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-02-05 15:30:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-02-05 15:30:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2025-02-05 15:30:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2025-02-05 15:30:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-02-05 15:30:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-02-05 15:30:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-02-05 15:30:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-02-05 15:30:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-02-05 15:30:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-02-05 15:30:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 15:30:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 15:30:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-02-05 15:30:53,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-02-05 15:30:53,306 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 15:30:53,309 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 15:30:53,390 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2688: #res#1 := ~retValue_acc~26#1; [2025-02-05 15:30:53,390 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2660-1: stopRequestedAtCurrentFloor__wrappee__empty_#res#1 := stopRequestedAtCurrentFloor__wrappee__empty_~retValue_acc~25#1; [2025-02-05 15:30:53,393 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2016: #res := ~retValue_acc~17; [2025-02-05 15:30:53,415 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L557: #res := ~retValue_acc~3; [2025-02-05 15:30:53,566 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3306: #res := ~retValue_acc~29; [2025-02-05 15:30:53,596 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3317: #res := ~retValue_acc~30; [2025-02-05 15:30:53,660 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2604-1: isAnyLiftButtonPressed_#res#1 := isAnyLiftButtonPressed_~retValue_acc~24#1; [2025-02-05 15:30:53,661 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2541-1: stopRequestedInDirection__wrappee__twothirdsfull_#res#1 := stopRequestedInDirection__wrappee__twothirdsfull_~retValue_acc~22#1; [2025-02-05 15:30:53,661 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2570: #res#1 := ~retValue_acc~23#1; [2025-02-05 15:30:53,674 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2733: #res := ~retValue_acc~28; [2025-02-05 15:30:53,853 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2501: #res := ~retValue_acc~21; [2025-02-05 15:30:53,907 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2136-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~19#1; [2025-02-05 15:30:53,907 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2149-1: isIdle_#res#1 := isIdle_~retValue_acc~20#1; [2025-02-05 15:30:54,051 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2719-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~27#1; [2025-02-05 15:30:54,059 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1303: #res := ~retValue_acc~8; [2025-02-05 15:30:54,076 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L635: #res := ~retValue_acc~5; [2025-02-05 15:30:54,078 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1791: #res := ~retValue_acc~13; [2025-02-05 15:30:54,081 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1964: #res := ~retValue_acc~14; [2025-02-05 15:30:54,209 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L596: #res := ~retValue_acc~4; [2025-02-05 15:30:54,231 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2007: #res := ~retValue_acc~16; [2025-02-05 15:30:54,277 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2056-1: isEmpty_#res#1 := isEmpty_~retValue_acc~18#1; [2025-02-05 15:30:54,335 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L992: #res := ~retValue_acc~7; [2025-02-05 15:30:54,448 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1661-1: main_#res#1 := main_~retValue_acc~10#1; [2025-02-05 15:30:54,449 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1711-1: valid_product_#res#1 := valid_product_~retValue_acc~12#1; [2025-02-05 15:30:54,459 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L756: #res := ~retValue_acc~6; [2025-02-05 15:30:54,624 INFO L? ?]: Removed 492 outVars from TransFormulas that were not future-live. [2025-02-05 15:30:54,625 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 15:30:54,653 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 15:30:54,653 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 15:30:54,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:30:54 BoogieIcfgContainer [2025-02-05 15:30:54,654 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 15:30:54,656 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 15:30:54,656 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 15:30:54,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 15:30:54,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 03:30:52" (1/3) ... [2025-02-05 15:30:54,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49937e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:30:54, skipping insertion in model container [2025-02-05 15:30:54,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:30:52" (2/3) ... [2025-02-05 15:30:54,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49937e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:30:54, skipping insertion in model container [2025-02-05 15:30:54,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:30:54" (3/3) ... [2025-02-05 15:30:54,663 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product31.cil.c [2025-02-05 15:30:54,681 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 15:30:54,684 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec13_product31.cil.c that has 29 procedures, 629 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2025-02-05 15:30:54,763 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 15:30:54,773 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;@235e2ee9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 15:30:54,774 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 15:30:54,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 630 states, 489 states have (on average 1.670756646216769) internal successors, (817), 510 states have internal predecessors, (817), 108 states have call successors, (108), 28 states have call predecessors, (108), 28 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) [2025-02-05 15:30:54,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-02-05 15:30:54,809 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:30:54,810 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:30:54,810 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:30:54,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:30:54,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1457645472, now seen corresponding path program 1 times [2025-02-05 15:30:54,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:30:54,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699302608] [2025-02-05 15:30:54,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:30:54,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:30:54,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-02-05 15:30:55,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-02-05 15:30:55,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:30:55,016 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:30:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-05 15:30:55,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:30:55,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699302608] [2025-02-05 15:30:55,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699302608] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:30:55,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222948533] [2025-02-05 15:30:55,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:30:55,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:30:55,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:30:55,459 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 15:30:55,461 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 15:30:55,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-02-05 15:30:55,858 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-02-05 15:30:55,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:30:55,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:30:55,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 1408 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 15:30:55,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:30:55,898 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-05 15:30:55,899 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:30:55,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222948533] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:30:55,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:30:55,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2025-02-05 15:30:55,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179025783] [2025-02-05 15:30:55,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:30:55,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 15:30:55,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:30:55,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 15:30:55,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:30:55,925 INFO L87 Difference]: Start difference. First operand has 630 states, 489 states have (on average 1.670756646216769) internal successors, (817), 510 states have internal predecessors, (817), 108 states have call successors, (108), 28 states have call predecessors, (108), 28 states have return successors, (108), 105 states have call predecessors, (108), 108 states have call successors, (108) Second operand has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:30:56,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:30:56,046 INFO L93 Difference]: Finished difference Result 1238 states and 2049 transitions. [2025-02-05 15:30:56,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 15:30:56,047 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 131 [2025-02-05 15:30:56,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:30:56,070 INFO L225 Difference]: With dead ends: 1238 [2025-02-05 15:30:56,072 INFO L226 Difference]: Without dead ends: 617 [2025-02-05 15:30:56,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 132 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 15:30:56,088 INFO L435 NwaCegarLoop]: 1025 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:30:56,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:30:56,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2025-02-05 15:30:56,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 617. [2025-02-05 15:30:56,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 482 states have (on average 1.657676348547718) internal successors, (799), 498 states have internal predecessors, (799), 108 states have call successors, (108), 28 states have call predecessors, (108), 26 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2025-02-05 15:30:56,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 1012 transitions. [2025-02-05 15:30:56,193 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 1012 transitions. Word has length 131 [2025-02-05 15:30:56,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:30:56,196 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 1012 transitions. [2025-02-05 15:30:56,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:30:56,196 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 1012 transitions. [2025-02-05 15:30:56,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-02-05 15:30:56,207 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:30:56,208 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:30:56,219 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 15:30:56,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-05 15:30:56,409 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:30:56,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:30:56,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1566607204, now seen corresponding path program 1 times [2025-02-05 15:30:56,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:30:56,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530655899] [2025-02-05 15:30:56,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:30:56,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:30:56,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-05 15:30:56,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-05 15:30:56,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:30:56,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:30:56,685 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-02-05 15:30:56,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:30:56,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530655899] [2025-02-05 15:30:56,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530655899] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:30:56,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855853225] [2025-02-05 15:30:56,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:30:56,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:30:56,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:30:56,690 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 15:30:56,692 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 15:30:56,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-05 15:30:57,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-05 15:30:57,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:30:57,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:30:57,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 1410 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:30:57,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:30:57,092 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-05 15:30:57,092 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:30:57,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855853225] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:30:57,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:30:57,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-05 15:30:57,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615758127] [2025-02-05 15:30:57,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:30:57,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:30:57,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:30:57,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:30:57,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:30:57,107 INFO L87 Difference]: Start difference. First operand 617 states and 1012 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:30:57,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:30:57,258 INFO L93 Difference]: Finished difference Result 1235 states and 2032 transitions. [2025-02-05 15:30:57,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:30:57,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2025-02-05 15:30:57,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:30:57,267 INFO L225 Difference]: With dead ends: 1235 [2025-02-05 15:30:57,267 INFO L226 Difference]: Without dead ends: 626 [2025-02-05 15:30:57,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:30:57,273 INFO L435 NwaCegarLoop]: 999 mSDtfsCounter, 17 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2989 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:30:57,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2989 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:30:57,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2025-02-05 15:30:57,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 626. [2025-02-05 15:30:57,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 490 states have (on average 1.6591836734693877) internal successors, (813), 506 states have internal predecessors, (813), 108 states have call successors, (108), 29 states have call predecessors, (108), 27 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2025-02-05 15:30:57,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 1026 transitions. [2025-02-05 15:30:57,331 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 1026 transitions. Word has length 133 [2025-02-05 15:30:57,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:30:57,332 INFO L471 AbstractCegarLoop]: Abstraction has 626 states and 1026 transitions. [2025-02-05 15:30:57,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:30:57,332 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 1026 transitions. [2025-02-05 15:30:57,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-05 15:30:57,342 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:30:57,342 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:30:57,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-05 15:30:57,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:30:57,546 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:30:57,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:30:57,547 INFO L85 PathProgramCache]: Analyzing trace with hash -13295200, now seen corresponding path program 1 times [2025-02-05 15:30:57,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:30:57,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796642065] [2025-02-05 15:30:57,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:30:57,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:30:57,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-05 15:30:57,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-05 15:30:57,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:30:57,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:30:57,876 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-05 15:30:57,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:30:57,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796642065] [2025-02-05 15:30:57,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796642065] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:30:57,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26706532] [2025-02-05 15:30:57,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:30:57,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:30:57,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:30:57,882 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 15:30:57,885 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 15:30:58,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-05 15:30:58,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-05 15:30:58,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:30:58,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:30:58,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:30:58,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:30:58,227 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-05 15:30:58,227 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:30:58,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26706532] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:30:58,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:30:58,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2025-02-05 15:30:58,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515511486] [2025-02-05 15:30:58,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:30:58,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:30:58,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:30:58,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:30:58,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:30:58,232 INFO L87 Difference]: Start difference. First operand 626 states and 1026 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:30:58,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:30:58,512 INFO L93 Difference]: Finished difference Result 1305 states and 2156 transitions. [2025-02-05 15:30:58,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:30:58,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2025-02-05 15:30:58,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:30:58,521 INFO L225 Difference]: With dead ends: 1305 [2025-02-05 15:30:58,523 INFO L226 Difference]: Without dead ends: 689 [2025-02-05 15:30:58,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 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 15:30:58,528 INFO L435 NwaCegarLoop]: 987 mSDtfsCounter, 122 mSDsluCounter, 1897 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 15:30:58,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 2884 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 15:30:58,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2025-02-05 15:30:58,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 671. [2025-02-05 15:30:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 534 states have (on average 1.6797752808988764) internal successors, (897), 550 states have internal predecessors, (897), 108 states have call successors, (108), 30 states have call predecessors, (108), 28 states have return successors, (105), 103 states have call predecessors, (105), 105 states have call successors, (105) [2025-02-05 15:30:58,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1110 transitions. [2025-02-05 15:30:58,574 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1110 transitions. Word has length 135 [2025-02-05 15:30:58,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:30:58,575 INFO L471 AbstractCegarLoop]: Abstraction has 671 states and 1110 transitions. [2025-02-05 15:30:58,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:30:58,575 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1110 transitions. [2025-02-05 15:30:58,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-02-05 15:30:58,581 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:30:58,581 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:30:58,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-05 15:30:58,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:30:58,785 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:30:58,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:30:58,786 INFO L85 PathProgramCache]: Analyzing trace with hash 769304024, now seen corresponding path program 1 times [2025-02-05 15:30:58,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:30:58,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997478757] [2025-02-05 15:30:58,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:30:58,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:30:58,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-05 15:30:58,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-05 15:30:58,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:30:58,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:30:59,013 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-05 15:30:59,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:30:59,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997478757] [2025-02-05 15:30:59,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997478757] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:30:59,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261732106] [2025-02-05 15:30:59,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:30:59,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:30:59,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:30:59,016 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 15:30:59,019 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 15:30:59,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-02-05 15:30:59,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-02-05 15:30:59,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:30:59,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:30:59,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 1414 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-05 15:30:59,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:30:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-05 15:30:59,411 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:30:59,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261732106] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:30:59,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:30:59,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-02-05 15:30:59,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115764098] [2025-02-05 15:30:59,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:30:59,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:30:59,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:30:59,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:30:59,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:30:59,413 INFO L87 Difference]: Start difference. First operand 671 states and 1110 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:30:59,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:30:59,561 INFO L93 Difference]: Finished difference Result 1357 states and 2247 transitions. [2025-02-05 15:30:59,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:30:59,562 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 137 [2025-02-05 15:30:59,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:30:59,570 INFO L225 Difference]: With dead ends: 1357 [2025-02-05 15:30:59,570 INFO L226 Difference]: Without dead ends: 696 [2025-02-05 15:30:59,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:30:59,576 INFO L435 NwaCegarLoop]: 1000 mSDtfsCounter, 89 mSDsluCounter, 4906 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5906 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:30:59,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5906 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:30:59,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2025-02-05 15:30:59,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 684. [2025-02-05 15:30:59,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 544 states have (on average 1.6764705882352942) internal successors, (912), 562 states have internal predecessors, (912), 109 states have call successors, (109), 30 states have call predecessors, (109), 30 states have return successors, (110), 104 states have call predecessors, (110), 106 states have call successors, (110) [2025-02-05 15:30:59,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1131 transitions. [2025-02-05 15:30:59,620 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1131 transitions. Word has length 137 [2025-02-05 15:30:59,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:30:59,620 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 1131 transitions. [2025-02-05 15:30:59,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:30:59,621 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1131 transitions. [2025-02-05 15:30:59,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-02-05 15:30:59,626 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:30:59,626 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:30:59,636 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 15:30:59,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:30:59,827 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:30:59,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:30:59,827 INFO L85 PathProgramCache]: Analyzing trace with hash -94864864, now seen corresponding path program 1 times [2025-02-05 15:30:59,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:30:59,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730125528] [2025-02-05 15:30:59,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:30:59,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:30:59,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-02-05 15:30:59,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-02-05 15:30:59,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:30:59,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:30:59,948 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-02-05 15:30:59,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:30:59,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730125528] [2025-02-05 15:30:59,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730125528] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:30:59,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077812064] [2025-02-05 15:30:59,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:30:59,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:30:59,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:30:59,951 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 15:30:59,962 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 15:31:00,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-02-05 15:31:00,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-02-05 15:31:00,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:00,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:00,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:31:00,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:00,307 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-02-05 15:31:00,308 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:00,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077812064] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:00,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:00,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-05 15:31:00,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640230622] [2025-02-05 15:31:00,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:00,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:31:00,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:00,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:31:00,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:31:00,310 INFO L87 Difference]: Start difference. First operand 684 states and 1131 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:00,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:00,410 INFO L93 Difference]: Finished difference Result 1371 states and 2268 transitions. [2025-02-05 15:31:00,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:31:00,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 138 [2025-02-05 15:31:00,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:00,420 INFO L225 Difference]: With dead ends: 1371 [2025-02-05 15:31:00,420 INFO L226 Difference]: Without dead ends: 695 [2025-02-05 15:31:00,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:00,426 INFO L435 NwaCegarLoop]: 1000 mSDtfsCounter, 12 mSDsluCounter, 1991 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:00,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2991 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:31:00,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2025-02-05 15:31:00,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 693. [2025-02-05 15:31:00,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 552 states have (on average 1.6684782608695652) internal successors, (921), 570 states have internal predecessors, (921), 109 states have call successors, (109), 31 states have call predecessors, (109), 31 states have return successors, (109), 104 states have call predecessors, (109), 106 states have call successors, (109) [2025-02-05 15:31:00,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1139 transitions. [2025-02-05 15:31:00,470 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1139 transitions. Word has length 138 [2025-02-05 15:31:00,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:00,471 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1139 transitions. [2025-02-05 15:31:00,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:00,471 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1139 transitions. [2025-02-05 15:31:00,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-02-05 15:31:00,477 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:00,477 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:31:00,487 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 15:31:00,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:00,678 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:00,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:00,678 INFO L85 PathProgramCache]: Analyzing trace with hash -501611234, now seen corresponding path program 1 times [2025-02-05 15:31:00,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:00,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561212016] [2025-02-05 15:31:00,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:00,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:00,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-02-05 15:31:00,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-02-05 15:31:00,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:00,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:00,878 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-05 15:31:00,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:00,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561212016] [2025-02-05 15:31:00,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561212016] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:00,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787488787] [2025-02-05 15:31:00,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:00,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:00,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:00,881 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 15:31:00,884 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 15:31:01,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-02-05 15:31:01,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-02-05 15:31:01,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:01,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:01,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 1415 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-05 15:31:01,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:01,261 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-05 15:31:01,261 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:01,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787488787] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:01,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:01,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-02-05 15:31:01,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193479747] [2025-02-05 15:31:01,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:01,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:31:01,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:01,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:31:01,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:31:01,263 INFO L87 Difference]: Start difference. First operand 693 states and 1139 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:01,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:01,378 INFO L93 Difference]: Finished difference Result 1386 states and 2281 transitions. [2025-02-05 15:31:01,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:31:01,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 138 [2025-02-05 15:31:01,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:01,383 INFO L225 Difference]: With dead ends: 1386 [2025-02-05 15:31:01,383 INFO L226 Difference]: Without dead ends: 716 [2025-02-05 15:31:01,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:31:01,387 INFO L435 NwaCegarLoop]: 999 mSDtfsCounter, 100 mSDsluCounter, 4891 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5890 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:01,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5890 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:31:01,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2025-02-05 15:31:01,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 693. [2025-02-05 15:31:01,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 552 states have (on average 1.6684782608695652) internal successors, (921), 570 states have internal predecessors, (921), 109 states have call successors, (109), 31 states have call predecessors, (109), 31 states have return successors, (109), 104 states have call predecessors, (109), 106 states have call successors, (109) [2025-02-05 15:31:01,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1139 transitions. [2025-02-05 15:31:01,413 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1139 transitions. Word has length 138 [2025-02-05 15:31:01,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:01,414 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1139 transitions. [2025-02-05 15:31:01,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:01,414 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1139 transitions. [2025-02-05 15:31:01,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-02-05 15:31:01,419 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:01,419 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:01,429 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 15:31:01,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-02-05 15:31:01,623 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:01,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:01,624 INFO L85 PathProgramCache]: Analyzing trace with hash 530259862, now seen corresponding path program 1 times [2025-02-05 15:31:01,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:01,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893678770] [2025-02-05 15:31:01,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:01,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:01,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-02-05 15:31:01,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-02-05 15:31:01,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:01,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:01,815 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-05 15:31:01,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:01,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893678770] [2025-02-05 15:31:01,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893678770] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:01,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259389170] [2025-02-05 15:31:01,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:01,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:01,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:01,818 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 15:31:01,821 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 15:31:01,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-02-05 15:31:02,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-02-05 15:31:02,113 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:02,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:02,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-05 15:31:02,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:02,201 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-05 15:31:02,201 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:02,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259389170] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:02,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:02,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-02-05 15:31:02,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733666914] [2025-02-05 15:31:02,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:02,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:31:02,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:02,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:31:02,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:31:02,203 INFO L87 Difference]: Start difference. First operand 693 states and 1139 transitions. Second operand has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:02,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:02,340 INFO L93 Difference]: Finished difference Result 1386 states and 2281 transitions. [2025-02-05 15:31:02,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:31:02,341 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 139 [2025-02-05 15:31:02,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:02,346 INFO L225 Difference]: With dead ends: 1386 [2025-02-05 15:31:02,346 INFO L226 Difference]: Without dead ends: 716 [2025-02-05 15:31:02,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:31:02,350 INFO L435 NwaCegarLoop]: 999 mSDtfsCounter, 111 mSDsluCounter, 4879 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 5878 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:02,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 5878 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:31:02,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2025-02-05 15:31:02,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 693. [2025-02-05 15:31:02,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 552 states have (on average 1.6684782608695652) internal successors, (921), 570 states have internal predecessors, (921), 109 states have call successors, (109), 31 states have call predecessors, (109), 31 states have return successors, (109), 104 states have call predecessors, (109), 106 states have call successors, (109) [2025-02-05 15:31:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1139 transitions. [2025-02-05 15:31:02,386 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1139 transitions. Word has length 139 [2025-02-05 15:31:02,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:02,386 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1139 transitions. [2025-02-05 15:31:02,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:02,386 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1139 transitions. [2025-02-05 15:31:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-02-05 15:31:02,392 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:02,392 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:02,402 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 15:31:02,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:02,593 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:02,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:02,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1094488545, now seen corresponding path program 1 times [2025-02-05 15:31:02,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:02,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957437841] [2025-02-05 15:31:02,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:02,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:02,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-02-05 15:31:02,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-02-05 15:31:02,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:02,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-05 15:31:02,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:02,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957437841] [2025-02-05 15:31:02,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957437841] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:02,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925648666] [2025-02-05 15:31:02,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:02,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:02,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:02,771 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 15:31:02,773 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 15:31:02,911 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-02-05 15:31:03,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-02-05 15:31:03,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:03,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:03,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 1412 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-05 15:31:03,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-05 15:31:03,143 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:03,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925648666] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:03,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:03,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-02-05 15:31:03,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338965815] [2025-02-05 15:31:03,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:03,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 15:31:03,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:03,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 15:31:03,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:31:03,147 INFO L87 Difference]: Start difference. First operand 693 states and 1139 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:03,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:03,325 INFO L93 Difference]: Finished difference Result 1389 states and 2285 transitions. [2025-02-05 15:31:03,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:31:03,326 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 139 [2025-02-05 15:31:03,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:03,332 INFO L225 Difference]: With dead ends: 1389 [2025-02-05 15:31:03,332 INFO L226 Difference]: Without dead ends: 719 [2025-02-05 15:31:03,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-02-05 15:31:03,337 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 95 mSDsluCounter, 5837 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6826 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:03,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 6826 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:31:03,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2025-02-05 15:31:03,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 693. [2025-02-05 15:31:03,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 552 states have (on average 1.6684782608695652) internal successors, (921), 570 states have internal predecessors, (921), 109 states have call successors, (109), 31 states have call predecessors, (109), 31 states have return successors, (109), 104 states have call predecessors, (109), 106 states have call successors, (109) [2025-02-05 15:31:03,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1139 transitions. [2025-02-05 15:31:03,370 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1139 transitions. Word has length 139 [2025-02-05 15:31:03,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:03,370 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1139 transitions. [2025-02-05 15:31:03,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:03,370 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1139 transitions. [2025-02-05 15:31:03,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-02-05 15:31:03,376 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:03,377 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:03,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-05 15:31:03,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:03,581 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:03,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:03,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1918765451, now seen corresponding path program 1 times [2025-02-05 15:31:03,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:03,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694633360] [2025-02-05 15:31:03,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:03,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:03,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-05 15:31:03,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-05 15:31:03,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:03,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:03,769 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-05 15:31:03,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:03,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694633360] [2025-02-05 15:31:03,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694633360] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:03,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165310050] [2025-02-05 15:31:03,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:03,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:03,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:03,773 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:31:03,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-05 15:31:03,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-05 15:31:04,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-05 15:31:04,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:04,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:04,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-05 15:31:04,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-05 15:31:04,161 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:04,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165310050] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:04,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:04,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-02-05 15:31:04,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658918156] [2025-02-05 15:31:04,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:04,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 15:31:04,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:04,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 15:31:04,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:31:04,163 INFO L87 Difference]: Start difference. First operand 693 states and 1139 transitions. Second operand has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:04,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:04,345 INFO L93 Difference]: Finished difference Result 1389 states and 2285 transitions. [2025-02-05 15:31:04,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:31:04,346 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 140 [2025-02-05 15:31:04,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:04,351 INFO L225 Difference]: With dead ends: 1389 [2025-02-05 15:31:04,351 INFO L226 Difference]: Without dead ends: 719 [2025-02-05 15:31:04,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-02-05 15:31:04,356 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 105 mSDsluCounter, 5825 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 6814 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:04,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 6814 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:31:04,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2025-02-05 15:31:04,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 693. [2025-02-05 15:31:04,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 552 states have (on average 1.6684782608695652) internal successors, (921), 570 states have internal predecessors, (921), 109 states have call successors, (109), 31 states have call predecessors, (109), 31 states have return successors, (109), 104 states have call predecessors, (109), 106 states have call successors, (109) [2025-02-05 15:31:04,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1139 transitions. [2025-02-05 15:31:04,382 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1139 transitions. Word has length 140 [2025-02-05 15:31:04,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:04,382 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1139 transitions. [2025-02-05 15:31:04,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.571428571428571) internal successors, (88), 7 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:04,382 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1139 transitions. [2025-02-05 15:31:04,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-05 15:31:04,386 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:04,386 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:04,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-05 15:31:04,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:04,587 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:04,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:04,588 INFO L85 PathProgramCache]: Analyzing trace with hash -2025830113, now seen corresponding path program 1 times [2025-02-05 15:31:04,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:04,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213623666] [2025-02-05 15:31:04,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:04,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:04,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-05 15:31:04,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-05 15:31:04,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:04,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:04,686 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-02-05 15:31:04,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:04,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213623666] [2025-02-05 15:31:04,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213623666] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:04,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244850173] [2025-02-05 15:31:04,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:04,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:04,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:04,689 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:31:04,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-05 15:31:04,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-05 15:31:04,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-05 15:31:04,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:04,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:04,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 1417 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:31:04,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:05,006 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-05 15:31:05,008 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:05,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244850173] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:05,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:05,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-05 15:31:05,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403121470] [2025-02-05 15:31:05,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:05,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:31:05,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:05,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:31:05,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:31:05,010 INFO L87 Difference]: Start difference. First operand 693 states and 1139 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:05,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:05,089 INFO L93 Difference]: Finished difference Result 1352 states and 2230 transitions. [2025-02-05 15:31:05,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:31:05,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 141 [2025-02-05 15:31:05,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:05,094 INFO L225 Difference]: With dead ends: 1352 [2025-02-05 15:31:05,095 INFO L226 Difference]: Without dead ends: 693 [2025-02-05 15:31:05,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:05,099 INFO L435 NwaCegarLoop]: 997 mSDtfsCounter, 20 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2985 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:05,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2985 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:31:05,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2025-02-05 15:31:05,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2025-02-05 15:31:05,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 552 states have (on average 1.6594202898550725) internal successors, (916), 570 states have internal predecessors, (916), 109 states have call successors, (109), 31 states have call predecessors, (109), 31 states have return successors, (109), 104 states have call predecessors, (109), 106 states have call successors, (109) [2025-02-05 15:31:05,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1134 transitions. [2025-02-05 15:31:05,125 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1134 transitions. Word has length 141 [2025-02-05 15:31:05,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:05,126 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1134 transitions. [2025-02-05 15:31:05,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:05,126 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1134 transitions. [2025-02-05 15:31:05,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-02-05 15:31:05,130 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:05,131 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:31:05,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-05 15:31:05,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-05 15:31:05,332 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:05,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:05,333 INFO L85 PathProgramCache]: Analyzing trace with hash -843360215, now seen corresponding path program 1 times [2025-02-05 15:31:05,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:05,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660987150] [2025-02-05 15:31:05,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:05,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:05,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 15:31:05,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 15:31:05,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:05,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:05,415 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-02-05 15:31:05,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:05,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660987150] [2025-02-05 15:31:05,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660987150] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:05,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996252323] [2025-02-05 15:31:05,415 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:05,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:05,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:05,418 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:31:05,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-05 15:31:05,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 15:31:05,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 15:31:05,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:05,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:05,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 1418 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:31:05,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:05,784 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-02-05 15:31:05,784 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:05,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996252323] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:05,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:05,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-05 15:31:05,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212220854] [2025-02-05 15:31:05,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:05,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:31:05,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:05,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:31:05,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:31:05,786 INFO L87 Difference]: Start difference. First operand 693 states and 1134 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:05,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:05,970 INFO L93 Difference]: Finished difference Result 1381 states and 2270 transitions. [2025-02-05 15:31:05,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:31:05,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 142 [2025-02-05 15:31:05,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:05,976 INFO L225 Difference]: With dead ends: 1381 [2025-02-05 15:31:05,976 INFO L226 Difference]: Without dead ends: 780 [2025-02-05 15:31:05,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 142 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 15:31:05,979 INFO L435 NwaCegarLoop]: 962 mSDtfsCounter, 171 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 2857 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:05,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 2857 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:31:05,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2025-02-05 15:31:06,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 738. [2025-02-05 15:31:06,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 596 states have (on average 1.6778523489932886) internal successors, (1000), 614 states have internal predecessors, (1000), 109 states have call successors, (109), 32 states have call predecessors, (109), 32 states have return successors, (108), 104 states have call predecessors, (108), 106 states have call successors, (108) [2025-02-05 15:31:06,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1217 transitions. [2025-02-05 15:31:06,009 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1217 transitions. Word has length 142 [2025-02-05 15:31:06,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:06,009 INFO L471 AbstractCegarLoop]: Abstraction has 738 states and 1217 transitions. [2025-02-05 15:31:06,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:06,010 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1217 transitions. [2025-02-05 15:31:06,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-02-05 15:31:06,014 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:06,014 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:06,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-05 15:31:06,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-05 15:31:06,215 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:06,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:06,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1615134815, now seen corresponding path program 1 times [2025-02-05 15:31:06,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:06,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554847857] [2025-02-05 15:31:06,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:06,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:06,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-05 15:31:06,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-05 15:31:06,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:06,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-02-05 15:31:06,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:06,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554847857] [2025-02-05 15:31:06,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554847857] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:06,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132163338] [2025-02-05 15:31:06,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:06,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:06,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:06,302 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:31:06,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-05 15:31:06,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-05 15:31:06,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-05 15:31:06,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:06,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:06,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-05 15:31:06,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:06,680 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-05 15:31:06,681 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:06,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132163338] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:06,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:06,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-02-05 15:31:06,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746958916] [2025-02-05 15:31:06,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:06,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:31:06,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:06,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:31:06,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:31:06,683 INFO L87 Difference]: Start difference. First operand 738 states and 1217 transitions. Second operand has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:06,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:06,785 INFO L93 Difference]: Finished difference Result 1374 states and 2257 transitions. [2025-02-05 15:31:06,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:31:06,786 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 143 [2025-02-05 15:31:06,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:06,791 INFO L225 Difference]: With dead ends: 1374 [2025-02-05 15:31:06,791 INFO L226 Difference]: Without dead ends: 773 [2025-02-05 15:31:06,795 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 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 15:31:06,796 INFO L435 NwaCegarLoop]: 1002 mSDtfsCounter, 89 mSDsluCounter, 4920 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5922 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:06,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5922 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:31:06,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2025-02-05 15:31:06,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 751. [2025-02-05 15:31:06,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 606 states have (on average 1.674917491749175) internal successors, (1015), 626 states have internal predecessors, (1015), 110 states have call successors, (110), 32 states have call predecessors, (110), 34 states have return successors, (111), 105 states have call predecessors, (111), 107 states have call successors, (111) [2025-02-05 15:31:06,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1236 transitions. [2025-02-05 15:31:06,854 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1236 transitions. Word has length 143 [2025-02-05 15:31:06,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:06,856 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1236 transitions. [2025-02-05 15:31:06,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:06,856 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1236 transitions. [2025-02-05 15:31:06,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-05 15:31:06,861 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:06,862 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:31:06,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-05 15:31:07,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:07,063 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:07,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:07,063 INFO L85 PathProgramCache]: Analyzing trace with hash 919072904, now seen corresponding path program 1 times [2025-02-05 15:31:07,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:07,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063672411] [2025-02-05 15:31:07,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:07,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:07,080 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-05 15:31:07,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-05 15:31:07,085 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:07,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:07,144 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-02-05 15:31:07,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:07,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063672411] [2025-02-05 15:31:07,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063672411] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:07,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368301523] [2025-02-05 15:31:07,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:07,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:07,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:07,147 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:31:07,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-05 15:31:07,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-05 15:31:07,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-05 15:31:07,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:07,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:07,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 1420 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:31:07,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:07,489 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-05 15:31:07,490 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:07,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368301523] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:07,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:07,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-05 15:31:07,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989784165] [2025-02-05 15:31:07,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:07,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:31:07,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:07,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:31:07,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:31:07,494 INFO L87 Difference]: Start difference. First operand 751 states and 1236 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:07,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:07,541 INFO L93 Difference]: Finished difference Result 1428 states and 2353 transitions. [2025-02-05 15:31:07,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:31:07,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2025-02-05 15:31:07,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:07,547 INFO L225 Difference]: With dead ends: 1428 [2025-02-05 15:31:07,547 INFO L226 Difference]: Without dead ends: 751 [2025-02-05 15:31:07,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:31:07,552 INFO L435 NwaCegarLoop]: 1001 mSDtfsCounter, 2 mSDsluCounter, 1993 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:07,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2994 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:31:07,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2025-02-05 15:31:07,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2025-02-05 15:31:07,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 606 states have (on average 1.66996699669967) internal successors, (1012), 626 states have internal predecessors, (1012), 110 states have call successors, (110), 32 states have call predecessors, (110), 34 states have return successors, (111), 105 states have call predecessors, (111), 107 states have call successors, (111) [2025-02-05 15:31:07,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1233 transitions. [2025-02-05 15:31:07,581 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1233 transitions. Word has length 144 [2025-02-05 15:31:07,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:07,581 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1233 transitions. [2025-02-05 15:31:07,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:07,582 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1233 transitions. [2025-02-05 15:31:07,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-05 15:31:07,586 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:07,586 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:31:07,596 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-05 15:31:07,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:07,787 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:07,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:07,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1101679425, now seen corresponding path program 1 times [2025-02-05 15:31:07,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:07,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123939577] [2025-02-05 15:31:07,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:07,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:07,804 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-05 15:31:07,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-05 15:31:07,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:07,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:07,875 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-05 15:31:07,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:07,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123939577] [2025-02-05 15:31:07,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123939577] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:07,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282970639] [2025-02-05 15:31:07,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:07,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:07,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:07,879 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:31:07,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-05 15:31:08,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-05 15:31:08,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-05 15:31:08,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:08,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:08,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 1420 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-05 15:31:08,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:08,255 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-05 15:31:08,256 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:08,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282970639] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:08,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:08,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-02-05 15:31:08,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701020629] [2025-02-05 15:31:08,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:08,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:31:08,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:08,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:31:08,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:31:08,258 INFO L87 Difference]: Start difference. First operand 751 states and 1233 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:08,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:08,364 INFO L93 Difference]: Finished difference Result 1383 states and 2268 transitions. [2025-02-05 15:31:08,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:31:08,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 144 [2025-02-05 15:31:08,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:08,370 INFO L225 Difference]: With dead ends: 1383 [2025-02-05 15:31:08,370 INFO L226 Difference]: Without dead ends: 782 [2025-02-05 15:31:08,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 141 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 15:31:08,374 INFO L435 NwaCegarLoop]: 997 mSDtfsCounter, 100 mSDsluCounter, 4887 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5884 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:08,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5884 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:31:08,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2025-02-05 15:31:08,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 751. [2025-02-05 15:31:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 606 states have (on average 1.66996699669967) internal successors, (1012), 626 states have internal predecessors, (1012), 110 states have call successors, (110), 32 states have call predecessors, (110), 34 states have return successors, (111), 105 states have call predecessors, (111), 107 states have call successors, (111) [2025-02-05 15:31:08,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1233 transitions. [2025-02-05 15:31:08,404 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1233 transitions. Word has length 144 [2025-02-05 15:31:08,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:08,404 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1233 transitions. [2025-02-05 15:31:08,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:08,405 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1233 transitions. [2025-02-05 15:31:08,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-05 15:31:08,410 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:08,410 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:31:08,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-05 15:31:08,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-02-05 15:31:08,615 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:08,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:08,615 INFO L85 PathProgramCache]: Analyzing trace with hash -660742480, now seen corresponding path program 1 times [2025-02-05 15:31:08,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:08,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593905150] [2025-02-05 15:31:08,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:08,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:08,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-05 15:31:08,632 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-05 15:31:08,632 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:08,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:08,687 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-05 15:31:08,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:08,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593905150] [2025-02-05 15:31:08,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593905150] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:08,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741275242] [2025-02-05 15:31:08,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:08,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:08,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:08,691 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:31:08,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-05 15:31:08,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-05 15:31:08,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-05 15:31:08,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:08,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:08,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-05 15:31:08,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:09,061 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-05 15:31:09,062 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:09,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741275242] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:09,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:09,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-02-05 15:31:09,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970394157] [2025-02-05 15:31:09,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:09,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 15:31:09,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:09,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 15:31:09,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:31:09,065 INFO L87 Difference]: Start difference. First operand 751 states and 1233 transitions. Second operand has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:09,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:09,245 INFO L93 Difference]: Finished difference Result 1386 states and 2271 transitions. [2025-02-05 15:31:09,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:31:09,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 144 [2025-02-05 15:31:09,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:09,253 INFO L225 Difference]: With dead ends: 1386 [2025-02-05 15:31:09,253 INFO L226 Difference]: Without dead ends: 785 [2025-02-05 15:31:09,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:31:09,259 INFO L435 NwaCegarLoop]: 987 mSDtfsCounter, 96 mSDsluCounter, 5831 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 6818 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:09,259 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 6818 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:31:09,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2025-02-05 15:31:09,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 751. [2025-02-05 15:31:09,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 606 states have (on average 1.66996699669967) internal successors, (1012), 626 states have internal predecessors, (1012), 110 states have call successors, (110), 32 states have call predecessors, (110), 34 states have return successors, (111), 105 states have call predecessors, (111), 107 states have call successors, (111) [2025-02-05 15:31:09,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1233 transitions. [2025-02-05 15:31:09,292 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1233 transitions. Word has length 144 [2025-02-05 15:31:09,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:09,292 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1233 transitions. [2025-02-05 15:31:09,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1233 transitions. [2025-02-05 15:31:09,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-02-05 15:31:09,299 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:09,299 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:09,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-05 15:31:09,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-05 15:31:09,500 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:09,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:09,500 INFO L85 PathProgramCache]: Analyzing trace with hash -2138060990, now seen corresponding path program 1 times [2025-02-05 15:31:09,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:09,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099387338] [2025-02-05 15:31:09,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:09,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:09,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-02-05 15:31:09,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-02-05 15:31:09,523 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:09,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-05 15:31:09,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:09,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099387338] [2025-02-05 15:31:09,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099387338] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:09,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306156841] [2025-02-05 15:31:09,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:09,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:09,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:09,597 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:31:09,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-05 15:31:09,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-02-05 15:31:09,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-02-05 15:31:09,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:09,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:09,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 1417 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-05 15:31:09,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:09,945 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-02-05 15:31:09,945 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:09,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306156841] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:09,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:09,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-02-05 15:31:09,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075601613] [2025-02-05 15:31:09,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:09,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 15:31:09,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:09,946 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 15:31:09,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:31:09,947 INFO L87 Difference]: Start difference. First operand 751 states and 1233 transitions. Second operand has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:10,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:10,098 INFO L93 Difference]: Finished difference Result 1377 states and 2257 transitions. [2025-02-05 15:31:10,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:31:10,099 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 145 [2025-02-05 15:31:10,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:10,105 INFO L225 Difference]: With dead ends: 1377 [2025-02-05 15:31:10,105 INFO L226 Difference]: Without dead ends: 776 [2025-02-05 15:31:10,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:31:10,109 INFO L435 NwaCegarLoop]: 987 mSDtfsCounter, 106 mSDsluCounter, 5819 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 6806 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:10,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 6806 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:31:10,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2025-02-05 15:31:10,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 751. [2025-02-05 15:31:10,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 606 states have (on average 1.66996699669967) internal successors, (1012), 626 states have internal predecessors, (1012), 110 states have call successors, (110), 32 states have call predecessors, (110), 34 states have return successors, (111), 105 states have call predecessors, (111), 107 states have call successors, (111) [2025-02-05 15:31:10,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1233 transitions. [2025-02-05 15:31:10,138 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1233 transitions. Word has length 145 [2025-02-05 15:31:10,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:10,139 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1233 transitions. [2025-02-05 15:31:10,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:10,139 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1233 transitions. [2025-02-05 15:31:10,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-02-05 15:31:10,143 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:10,143 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:10,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-05 15:31:10,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:10,344 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:10,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:10,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1268225788, now seen corresponding path program 1 times [2025-02-05 15:31:10,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:10,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920140506] [2025-02-05 15:31:10,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:10,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:10,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-02-05 15:31:10,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-02-05 15:31:10,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:10,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:10,448 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-02-05 15:31:10,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:10,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920140506] [2025-02-05 15:31:10,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920140506] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:10,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657028664] [2025-02-05 15:31:10,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:10,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:10,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:10,451 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:31:10,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-05 15:31:10,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-02-05 15:31:10,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-02-05 15:31:10,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:10,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:10,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:31:10,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:10,877 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-02-05 15:31:10,877 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:10,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657028664] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:10,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:10,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-02-05 15:31:10,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936551513] [2025-02-05 15:31:10,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:10,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:31:10,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:10,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:31:10,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:10,878 INFO L87 Difference]: Start difference. First operand 751 states and 1233 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:31:11,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:11,455 INFO L93 Difference]: Finished difference Result 1356 states and 2254 transitions. [2025-02-05 15:31:11,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:31:11,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 146 [2025-02-05 15:31:11,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:11,463 INFO L225 Difference]: With dead ends: 1356 [2025-02-05 15:31:11,464 INFO L226 Difference]: Without dead ends: 759 [2025-02-05 15:31:11,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:31:11,468 INFO L435 NwaCegarLoop]: 991 mSDtfsCounter, 966 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:11,469 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 2553 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 15:31:11,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2025-02-05 15:31:11,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 759. [2025-02-05 15:31:11,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 759 states, 613 states have (on average 1.67047308319739) internal successors, (1024), 633 states have internal predecessors, (1024), 110 states have call successors, (110), 33 states have call predecessors, (110), 35 states have return successors, (112), 105 states have call predecessors, (112), 107 states have call successors, (112) [2025-02-05 15:31:11,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1246 transitions. [2025-02-05 15:31:11,500 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1246 transitions. Word has length 146 [2025-02-05 15:31:11,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:11,501 INFO L471 AbstractCegarLoop]: Abstraction has 759 states and 1246 transitions. [2025-02-05 15:31:11,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:31:11,501 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1246 transitions. [2025-02-05 15:31:11,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-02-05 15:31:11,505 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:11,505 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:11,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-05 15:31:11,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-05 15:31:11,708 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:11,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:11,709 INFO L85 PathProgramCache]: Analyzing trace with hash 777686472, now seen corresponding path program 1 times [2025-02-05 15:31:11,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:11,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511194229] [2025-02-05 15:31:11,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:11,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:11,720 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-05 15:31:11,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-05 15:31:11,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:11,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-02-05 15:31:11,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:11,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511194229] [2025-02-05 15:31:11,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511194229] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:11,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555702401] [2025-02-05 15:31:11,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:11,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:11,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:11,788 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:31:11,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-05 15:31:11,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-05 15:31:12,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-05 15:31:12,048 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:12,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:12,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 1423 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:31:12,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-02-05 15:31:12,153 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:12,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555702401] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:12,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:12,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-02-05 15:31:12,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322195770] [2025-02-05 15:31:12,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:12,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:31:12,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:12,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:31:12,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:12,155 INFO L87 Difference]: Start difference. First operand 759 states and 1246 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:31:12,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:12,643 INFO L93 Difference]: Finished difference Result 1372 states and 2277 transitions. [2025-02-05 15:31:12,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:31:12,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2025-02-05 15:31:12,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:12,649 INFO L225 Difference]: With dead ends: 1372 [2025-02-05 15:31:12,649 INFO L226 Difference]: Without dead ends: 767 [2025-02-05 15:31:12,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:31:12,653 INFO L435 NwaCegarLoop]: 988 mSDtfsCounter, 950 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 957 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:12,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [957 Valid, 2550 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 15:31:12,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2025-02-05 15:31:12,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 767. [2025-02-05 15:31:12,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 620 states have (on average 1.6709677419354838) internal successors, (1036), 640 states have internal predecessors, (1036), 110 states have call successors, (110), 34 states have call predecessors, (110), 36 states have return successors, (113), 105 states have call predecessors, (113), 107 states have call successors, (113) [2025-02-05 15:31:12,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1259 transitions. [2025-02-05 15:31:12,678 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1259 transitions. Word has length 148 [2025-02-05 15:31:12,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:12,678 INFO L471 AbstractCegarLoop]: Abstraction has 767 states and 1259 transitions. [2025-02-05 15:31:12,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:31:12,678 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1259 transitions. [2025-02-05 15:31:12,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-02-05 15:31:12,682 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:12,683 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:12,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-02-05 15:31:12,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-05 15:31:12,884 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:12,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:12,884 INFO L85 PathProgramCache]: Analyzing trace with hash 923854692, now seen corresponding path program 1 times [2025-02-05 15:31:12,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:12,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322072644] [2025-02-05 15:31:12,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:12,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:12,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-02-05 15:31:12,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-02-05 15:31:12,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:12,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-02-05 15:31:12,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:12,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322072644] [2025-02-05 15:31:12,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322072644] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:12,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281784475] [2025-02-05 15:31:12,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:12,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:12,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:12,961 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:31:12,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-05 15:31:13,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-02-05 15:31:13,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-02-05 15:31:13,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:13,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:13,242 INFO L256 TraceCheckSpWp]: Trace formula consists of 1425 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:31:13,245 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:13,347 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-02-05 15:31:13,347 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:13,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281784475] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:13,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:13,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-02-05 15:31:13,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181978152] [2025-02-05 15:31:13,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:13,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:31:13,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:13,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:31:13,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:13,350 INFO L87 Difference]: Start difference. First operand 767 states and 1259 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:31:13,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:13,873 INFO L93 Difference]: Finished difference Result 1388 states and 2300 transitions. [2025-02-05 15:31:13,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:31:13,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2025-02-05 15:31:13,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:13,878 INFO L225 Difference]: With dead ends: 1388 [2025-02-05 15:31:13,878 INFO L226 Difference]: Without dead ends: 775 [2025-02-05 15:31:13,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:31:13,882 INFO L435 NwaCegarLoop]: 985 mSDtfsCounter, 954 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:13,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 2547 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 15:31:13,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2025-02-05 15:31:13,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 775. [2025-02-05 15:31:13,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 627 states have (on average 1.671451355661882) internal successors, (1048), 647 states have internal predecessors, (1048), 110 states have call successors, (110), 35 states have call predecessors, (110), 37 states have return successors, (114), 105 states have call predecessors, (114), 107 states have call successors, (114) [2025-02-05 15:31:13,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1272 transitions. [2025-02-05 15:31:13,911 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1272 transitions. Word has length 150 [2025-02-05 15:31:13,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:13,911 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 1272 transitions. [2025-02-05 15:31:13,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:31:13,912 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1272 transitions. [2025-02-05 15:31:13,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2025-02-05 15:31:13,915 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:13,916 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:13,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-05 15:31:14,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:14,117 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:14,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:14,118 INFO L85 PathProgramCache]: Analyzing trace with hash -2123674674, now seen corresponding path program 1 times [2025-02-05 15:31:14,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:14,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469872307] [2025-02-05 15:31:14,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:14,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:14,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-02-05 15:31:14,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-02-05 15:31:14,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:14,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-02-05 15:31:14,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:14,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469872307] [2025-02-05 15:31:14,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469872307] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:14,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093277422] [2025-02-05 15:31:14,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:14,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:14,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:14,195 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:31:14,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-05 15:31:14,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-02-05 15:31:14,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-02-05 15:31:14,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:14,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:14,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 1427 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:31:14,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-02-05 15:31:14,613 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:14,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093277422] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:14,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:14,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-02-05 15:31:14,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962263949] [2025-02-05 15:31:14,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:14,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:31:14,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:14,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:31:14,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:14,618 INFO L87 Difference]: Start difference. First operand 775 states and 1272 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:31:15,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:15,125 INFO L93 Difference]: Finished difference Result 1404 states and 2323 transitions. [2025-02-05 15:31:15,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:31:15,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 152 [2025-02-05 15:31:15,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:15,129 INFO L225 Difference]: With dead ends: 1404 [2025-02-05 15:31:15,129 INFO L226 Difference]: Without dead ends: 783 [2025-02-05 15:31:15,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:31:15,131 INFO L435 NwaCegarLoop]: 982 mSDtfsCounter, 948 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:15,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 2544 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 15:31:15,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2025-02-05 15:31:15,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 783. [2025-02-05 15:31:15,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 634 states have (on average 1.6719242902208202) internal successors, (1060), 654 states have internal predecessors, (1060), 110 states have call successors, (110), 36 states have call predecessors, (110), 38 states have return successors, (115), 105 states have call predecessors, (115), 107 states have call successors, (115) [2025-02-05 15:31:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1285 transitions. [2025-02-05 15:31:15,158 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1285 transitions. Word has length 152 [2025-02-05 15:31:15,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:15,158 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 1285 transitions. [2025-02-05 15:31:15,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:31:15,159 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1285 transitions. [2025-02-05 15:31:15,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-02-05 15:31:15,162 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:15,162 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:15,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-02-05 15:31:15,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:15,363 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:15,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:15,364 INFO L85 PathProgramCache]: Analyzing trace with hash 993754948, now seen corresponding path program 1 times [2025-02-05 15:31:15,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:15,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294386331] [2025-02-05 15:31:15,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:15,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:15,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-05 15:31:15,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-05 15:31:15,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:15,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-05 15:31:15,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:15,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294386331] [2025-02-05 15:31:15,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294386331] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:15,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124342272] [2025-02-05 15:31:15,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:15,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:15,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:15,444 INFO L229 MonitoredProcess]: Starting monitored process 22 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 15:31:15,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-02-05 15:31:15,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-05 15:31:15,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-05 15:31:15,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:15,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:15,736 INFO L256 TraceCheckSpWp]: Trace formula consists of 1429 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:31:15,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:15,760 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-02-05 15:31:15,760 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:15,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124342272] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:15,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:15,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-05 15:31:15,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327604859] [2025-02-05 15:31:15,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:15,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:31:15,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:15,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:31:15,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:31:15,762 INFO L87 Difference]: Start difference. First operand 783 states and 1285 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:15,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:15,809 INFO L93 Difference]: Finished difference Result 1433 states and 2359 transitions. [2025-02-05 15:31:15,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:31:15,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 154 [2025-02-05 15:31:15,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:15,822 INFO L225 Difference]: With dead ends: 1433 [2025-02-05 15:31:15,822 INFO L226 Difference]: Without dead ends: 804 [2025-02-05 15:31:15,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 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 15:31:15,826 INFO L435 NwaCegarLoop]: 1031 mSDtfsCounter, 53 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3031 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:15,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3031 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:31:15,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2025-02-05 15:31:15,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2025-02-05 15:31:15,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 654 states have (on average 1.6697247706422018) internal successors, (1092), 674 states have internal predecessors, (1092), 110 states have call successors, (110), 37 states have call predecessors, (110), 39 states have return successors, (115), 105 states have call predecessors, (115), 107 states have call successors, (115) [2025-02-05 15:31:15,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1317 transitions. [2025-02-05 15:31:15,857 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1317 transitions. Word has length 154 [2025-02-05 15:31:15,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:15,857 INFO L471 AbstractCegarLoop]: Abstraction has 804 states and 1317 transitions. [2025-02-05 15:31:15,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:15,858 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1317 transitions. [2025-02-05 15:31:15,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-02-05 15:31:15,860 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:15,861 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:15,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-02-05 15:31:16,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2025-02-05 15:31:16,061 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:16,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:16,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1265834503, now seen corresponding path program 1 times [2025-02-05 15:31:16,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:16,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083195838] [2025-02-05 15:31:16,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:16,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:16,075 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 15:31:16,078 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 15:31:16,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:16,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:16,137 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-02-05 15:31:16,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:16,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083195838] [2025-02-05 15:31:16,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083195838] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:16,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865926576] [2025-02-05 15:31:16,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:16,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:16,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:16,140 INFO L229 MonitoredProcess]: Starting monitored process 23 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 15:31:16,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-02-05 15:31:16,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 15:31:16,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 15:31:16,414 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:16,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:16,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 1437 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:31:16,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:16,463 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-05 15:31:16,463 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:16,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865926576] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:16,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:16,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2025-02-05 15:31:16,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453712931] [2025-02-05 15:31:16,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:16,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:31:16,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:16,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:31:16,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:16,465 INFO L87 Difference]: Start difference. First operand 804 states and 1317 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:17,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:17,392 INFO L93 Difference]: Finished difference Result 2664 states and 4434 transitions. [2025-02-05 15:31:17,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:31:17,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 158 [2025-02-05 15:31:17,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:17,403 INFO L225 Difference]: With dead ends: 2664 [2025-02-05 15:31:17,403 INFO L226 Difference]: Without dead ends: 2014 [2025-02-05 15:31:17,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:17,409 INFO L435 NwaCegarLoop]: 1715 mSDtfsCounter, 2001 mSDsluCounter, 2867 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2004 SdHoareTripleChecker+Valid, 4582 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:17,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2004 Valid, 4582 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-05 15:31:17,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2014 states. [2025-02-05 15:31:17,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2014 to 2004. [2025-02-05 15:31:17,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1607 states have (on average 1.6521468574984444) internal successors, (2655), 1655 states have internal predecessors, (2655), 297 states have call successors, (297), 99 states have call predecessors, (297), 99 states have return successors, (357), 288 states have call predecessors, (357), 292 states have call successors, (357) [2025-02-05 15:31:17,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 3309 transitions. [2025-02-05 15:31:17,479 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 3309 transitions. Word has length 158 [2025-02-05 15:31:17,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:17,480 INFO L471 AbstractCegarLoop]: Abstraction has 2004 states and 3309 transitions. [2025-02-05 15:31:17,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:17,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 3309 transitions. [2025-02-05 15:31:17,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-02-05 15:31:17,485 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:17,485 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:17,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-02-05 15:31:17,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-02-05 15:31:17,686 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:17,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:17,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1396328794, now seen corresponding path program 1 times [2025-02-05 15:31:17,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:17,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840931785] [2025-02-05 15:31:17,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:17,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:17,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 15:31:17,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 15:31:17,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:17,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:17,787 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-02-05 15:31:17,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:17,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840931785] [2025-02-05 15:31:17,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840931785] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:17,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048817667] [2025-02-05 15:31:17,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:17,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:17,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:17,790 INFO L229 MonitoredProcess]: Starting monitored process 24 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 15:31:17,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-02-05 15:31:17,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 15:31:18,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 15:31:18,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:18,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:18,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:31:18,080 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:18,089 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-02-05 15:31:18,089 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:18,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048817667] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:18,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:18,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2025-02-05 15:31:18,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91456450] [2025-02-05 15:31:18,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:18,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:31:18,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:18,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:31:18,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 15:31:18,090 INFO L87 Difference]: Start difference. First operand 2004 states and 3309 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:18,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:18,204 INFO L93 Difference]: Finished difference Result 5228 states and 8706 transitions. [2025-02-05 15:31:18,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:31:18,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 158 [2025-02-05 15:31:18,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:18,226 INFO L225 Difference]: With dead ends: 5228 [2025-02-05 15:31:18,226 INFO L226 Difference]: Without dead ends: 3379 [2025-02-05 15:31:18,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 15:31:18,236 INFO L435 NwaCegarLoop]: 1108 mSDtfsCounter, 1006 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:18,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 2077 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:31:18,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3379 states. [2025-02-05 15:31:18,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3379 to 3359. [2025-02-05 15:31:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3359 states, 2694 states have (on average 1.6525612472160356) internal successors, (4452), 2767 states have internal predecessors, (4452), 495 states have call successors, (495), 170 states have call predecessors, (495), 169 states have return successors, (605), 485 states have call predecessors, (605), 488 states have call successors, (605) [2025-02-05 15:31:18,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 5552 transitions. [2025-02-05 15:31:18,383 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 5552 transitions. Word has length 158 [2025-02-05 15:31:18,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:18,384 INFO L471 AbstractCegarLoop]: Abstraction has 3359 states and 5552 transitions. [2025-02-05 15:31:18,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:18,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 5552 transitions. [2025-02-05 15:31:18,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-02-05 15:31:18,389 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:18,389 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:18,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-02-05 15:31:18,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-02-05 15:31:18,590 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:18,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:18,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1975954919, now seen corresponding path program 1 times [2025-02-05 15:31:18,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:18,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641803519] [2025-02-05 15:31:18,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:18,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:18,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 15:31:18,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 15:31:18,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:18,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:18,665 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-02-05 15:31:18,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:18,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641803519] [2025-02-05 15:31:18,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641803519] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:18,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537438075] [2025-02-05 15:31:18,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:18,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:18,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:18,668 INFO L229 MonitoredProcess]: Starting monitored process 25 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 15:31:18,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-02-05 15:31:18,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 15:31:18,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 15:31:18,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:18,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:18,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 1433 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-05 15:31:18,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:19,105 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-05 15:31:19,106 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:19,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537438075] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:19,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:19,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2025-02-05 15:31:19,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895425729] [2025-02-05 15:31:19,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:19,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:31:19,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:19,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:31:19,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:31:19,108 INFO L87 Difference]: Start difference. First operand 3359 states and 5552 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 3 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:23,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:23,209 INFO L93 Difference]: Finished difference Result 9141 states and 15259 transitions. [2025-02-05 15:31:23,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:31:23,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 3 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 158 [2025-02-05 15:31:23,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:23,283 INFO L225 Difference]: With dead ends: 9141 [2025-02-05 15:31:23,283 INFO L226 Difference]: Without dead ends: 6359 [2025-02-05 15:31:23,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:31:23,297 INFO L435 NwaCegarLoop]: 635 mSDtfsCounter, 2897 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 6353 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3018 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 6996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 6353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:23,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3018 Valid, 2019 Invalid, 6996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 6353 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2025-02-05 15:31:23,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6359 states. [2025-02-05 15:31:23,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6359 to 5966. [2025-02-05 15:31:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5966 states, 4728 states have (on average 1.6163282571912014) internal successors, (7642), 4858 states have internal predecessors, (7642), 912 states have call successors, (912), 323 states have call predecessors, (912), 325 states have return successors, (1185), 892 states have call predecessors, (1185), 901 states have call successors, (1185) [2025-02-05 15:31:23,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5966 states to 5966 states and 9739 transitions. [2025-02-05 15:31:23,541 INFO L78 Accepts]: Start accepts. Automaton has 5966 states and 9739 transitions. Word has length 158 [2025-02-05 15:31:23,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:23,543 INFO L471 AbstractCegarLoop]: Abstraction has 5966 states and 9739 transitions. [2025-02-05 15:31:23,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 6 states have internal predecessors, (94), 3 states have call successors, (18), 4 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:23,543 INFO L276 IsEmpty]: Start isEmpty. Operand 5966 states and 9739 transitions. [2025-02-05 15:31:23,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-02-05 15:31:23,547 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:23,547 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:23,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-02-05 15:31:23,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-02-05 15:31:23,748 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:23,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:23,748 INFO L85 PathProgramCache]: Analyzing trace with hash -311529841, now seen corresponding path program 1 times [2025-02-05 15:31:23,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:23,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502764459] [2025-02-05 15:31:23,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:23,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:23,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-05 15:31:23,768 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-05 15:31:23,768 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:23,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:23,824 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-02-05 15:31:23,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:23,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502764459] [2025-02-05 15:31:23,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502764459] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:23,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152185092] [2025-02-05 15:31:23,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:23,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:23,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:23,827 INFO L229 MonitoredProcess]: Starting monitored process 26 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 15:31:23,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-02-05 15:31:24,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-05 15:31:24,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-05 15:31:24,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:24,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:24,152 INFO L256 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:31:24,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:24,192 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-05 15:31:24,193 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:24,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152185092] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:24,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:24,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2025-02-05 15:31:24,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661013323] [2025-02-05 15:31:24,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:24,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:31:24,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:24,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:31:24,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:24,194 INFO L87 Difference]: Start difference. First operand 5966 states and 9739 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:25,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:25,164 INFO L93 Difference]: Finished difference Result 16558 states and 27352 transitions. [2025-02-05 15:31:25,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:31:25,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 160 [2025-02-05 15:31:25,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:25,228 INFO L225 Difference]: With dead ends: 16558 [2025-02-05 15:31:25,228 INFO L226 Difference]: Without dead ends: 10735 [2025-02-05 15:31:25,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:31:25,260 INFO L435 NwaCegarLoop]: 1151 mSDtfsCounter, 2487 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:25,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2490 Valid, 3467 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 15:31:25,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10735 states. [2025-02-05 15:31:25,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10735 to 10680. [2025-02-05 15:31:25,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10680 states, 8435 states have (on average 1.6113811499703616) internal successors, (13592), 8678 states have internal predecessors, (13592), 1661 states have call successors, (1661), 579 states have call predecessors, (1661), 583 states have return successors, (2193), 1626 states have call predecessors, (2193), 1645 states have call successors, (2193) [2025-02-05 15:31:25,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10680 states to 10680 states and 17446 transitions. [2025-02-05 15:31:25,712 INFO L78 Accepts]: Start accepts. Automaton has 10680 states and 17446 transitions. Word has length 160 [2025-02-05 15:31:25,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:25,713 INFO L471 AbstractCegarLoop]: Abstraction has 10680 states and 17446 transitions. [2025-02-05 15:31:25,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:25,713 INFO L276 IsEmpty]: Start isEmpty. Operand 10680 states and 17446 transitions. [2025-02-05 15:31:25,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-02-05 15:31:25,717 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:25,717 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:25,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-02-05 15:31:25,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-02-05 15:31:25,918 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:25,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:25,918 INFO L85 PathProgramCache]: Analyzing trace with hash -2020458261, now seen corresponding path program 1 times [2025-02-05 15:31:25,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:25,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285530153] [2025-02-05 15:31:25,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:25,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:25,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-05 15:31:25,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-05 15:31:25,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:25,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:26,055 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-02-05 15:31:26,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:26,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285530153] [2025-02-05 15:31:26,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285530153] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:26,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822769886] [2025-02-05 15:31:26,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:26,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:26,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:26,059 INFO L229 MonitoredProcess]: Starting monitored process 27 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 15:31:26,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-02-05 15:31:26,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-05 15:31:26,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-05 15:31:26,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:26,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:26,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 1442 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:31:26,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:26,424 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-05 15:31:26,424 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:26,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822769886] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:26,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:26,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2025-02-05 15:31:26,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758694094] [2025-02-05 15:31:26,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:26,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:31:26,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:26,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:31:26,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:26,426 INFO L87 Difference]: Start difference. First operand 10680 states and 17446 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:27,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:27,465 INFO L93 Difference]: Finished difference Result 20537 states and 33571 transitions. [2025-02-05 15:31:27,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:31:27,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 161 [2025-02-05 15:31:27,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:27,518 INFO L225 Difference]: With dead ends: 20537 [2025-02-05 15:31:27,519 INFO L226 Difference]: Without dead ends: 10686 [2025-02-05 15:31:27,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:27,558 INFO L435 NwaCegarLoop]: 1720 mSDtfsCounter, 1845 mSDsluCounter, 2938 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 4658 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:27,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 4658 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 15:31:27,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10686 states. [2025-02-05 15:31:27,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10686 to 10668. [2025-02-05 15:31:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10668 states, 8423 states have (on average 1.6094028255965809) internal successors, (13556), 8666 states have internal predecessors, (13556), 1661 states have call successors, (1661), 579 states have call predecessors, (1661), 583 states have return successors, (2193), 1626 states have call predecessors, (2193), 1645 states have call successors, (2193) [2025-02-05 15:31:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10668 states to 10668 states and 17410 transitions. [2025-02-05 15:31:27,984 INFO L78 Accepts]: Start accepts. Automaton has 10668 states and 17410 transitions. Word has length 161 [2025-02-05 15:31:27,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:27,985 INFO L471 AbstractCegarLoop]: Abstraction has 10668 states and 17410 transitions. [2025-02-05 15:31:27,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:27,986 INFO L276 IsEmpty]: Start isEmpty. Operand 10668 states and 17410 transitions. [2025-02-05 15:31:27,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-02-05 15:31:27,989 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:27,989 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:27,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-02-05 15:31:28,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-02-05 15:31:28,190 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:28,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:28,191 INFO L85 PathProgramCache]: Analyzing trace with hash 766360051, now seen corresponding path program 1 times [2025-02-05 15:31:28,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:28,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776871911] [2025-02-05 15:31:28,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:28,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:28,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-02-05 15:31:28,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-02-05 15:31:28,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:28,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:28,272 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-02-05 15:31:28,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:28,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776871911] [2025-02-05 15:31:28,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776871911] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:28,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319824296] [2025-02-05 15:31:28,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:28,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:28,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:28,275 INFO L229 MonitoredProcess]: Starting monitored process 28 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 15:31:28,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-02-05 15:31:28,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-02-05 15:31:28,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-02-05 15:31:28,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:28,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:28,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-05 15:31:28,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:28,572 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-05 15:31:28,572 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:28,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319824296] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:28,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:28,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2025-02-05 15:31:28,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120400399] [2025-02-05 15:31:28,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:28,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:31:28,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:28,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:31:28,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:28,573 INFO L87 Difference]: Start difference. First operand 10668 states and 17410 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:28,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:28,952 INFO L93 Difference]: Finished difference Result 21264 states and 34889 transitions. [2025-02-05 15:31:28,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:31:28,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 163 [2025-02-05 15:31:28,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:29,013 INFO L225 Difference]: With dead ends: 21264 [2025-02-05 15:31:29,013 INFO L226 Difference]: Without dead ends: 10752 [2025-02-05 15:31:29,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:29,065 INFO L435 NwaCegarLoop]: 1007 mSDtfsCounter, 0 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4012 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:29,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4012 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:31:29,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10752 states. [2025-02-05 15:31:29,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10752 to 10744. [2025-02-05 15:31:29,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10744 states, 8486 states have (on average 1.6048786236153665) internal successors, (13619), 8717 states have internal predecessors, (13619), 1661 states have call successors, (1661), 579 states have call predecessors, (1661), 596 states have return successors, (2243), 1651 states have call predecessors, (2243), 1645 states have call successors, (2243) [2025-02-05 15:31:29,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10744 states to 10744 states and 17523 transitions. [2025-02-05 15:31:29,628 INFO L78 Accepts]: Start accepts. Automaton has 10744 states and 17523 transitions. Word has length 163 [2025-02-05 15:31:29,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:29,629 INFO L471 AbstractCegarLoop]: Abstraction has 10744 states and 17523 transitions. [2025-02-05 15:31:29,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:29,629 INFO L276 IsEmpty]: Start isEmpty. Operand 10744 states and 17523 transitions. [2025-02-05 15:31:29,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-02-05 15:31:29,634 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:29,634 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:29,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-02-05 15:31:29,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-02-05 15:31:29,836 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:29,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:29,837 INFO L85 PathProgramCache]: Analyzing trace with hash 944172909, now seen corresponding path program 1 times [2025-02-05 15:31:29,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:29,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287830180] [2025-02-05 15:31:29,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:29,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:29,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-02-05 15:31:29,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-02-05 15:31:29,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:29,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:29,931 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-02-05 15:31:29,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:29,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287830180] [2025-02-05 15:31:29,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287830180] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:29,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692294690] [2025-02-05 15:31:29,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:29,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:29,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:29,935 INFO L229 MonitoredProcess]: Starting monitored process 29 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 15:31:29,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-02-05 15:31:30,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-02-05 15:31:30,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-02-05 15:31:30,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:30,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:30,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-05 15:31:30,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:30,455 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-02-05 15:31:30,456 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:30,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692294690] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:30,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:30,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2025-02-05 15:31:30,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982869895] [2025-02-05 15:31:30,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:30,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:31:30,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:30,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:31:30,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:31:30,457 INFO L87 Difference]: Start difference. First operand 10744 states and 17523 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:31,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:31,481 INFO L93 Difference]: Finished difference Result 24006 states and 39208 transitions. [2025-02-05 15:31:31,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 15:31:31,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 164 [2025-02-05 15:31:31,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:31,555 INFO L225 Difference]: With dead ends: 24006 [2025-02-05 15:31:31,555 INFO L226 Difference]: Without dead ends: 13405 [2025-02-05 15:31:31,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:31:31,605 INFO L435 NwaCegarLoop]: 1363 mSDtfsCounter, 1723 mSDsluCounter, 4293 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 5656 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:31,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 5656 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 15:31:31,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13405 states. [2025-02-05 15:31:31,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13405 to 13166. [2025-02-05 15:31:32,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13166 states, 10575 states have (on average 1.595177304964539) internal successors, (16869), 10818 states have internal predecessors, (16869), 1805 states have call successors, (1805), 757 states have call predecessors, (1805), 785 states have return successors, (2604), 1795 states have call predecessors, (2604), 1784 states have call successors, (2604) [2025-02-05 15:31:32,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13166 states to 13166 states and 21278 transitions. [2025-02-05 15:31:32,222 INFO L78 Accepts]: Start accepts. Automaton has 13166 states and 21278 transitions. Word has length 164 [2025-02-05 15:31:32,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:32,222 INFO L471 AbstractCegarLoop]: Abstraction has 13166 states and 21278 transitions. [2025-02-05 15:31:32,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:32,223 INFO L276 IsEmpty]: Start isEmpty. Operand 13166 states and 21278 transitions. [2025-02-05 15:31:32,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-02-05 15:31:32,227 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:32,227 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:31:32,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-02-05 15:31:32,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-02-05 15:31:32,431 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:32,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:32,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1658534245, now seen corresponding path program 1 times [2025-02-05 15:31:32,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:32,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604562769] [2025-02-05 15:31:32,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:32,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:32,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-02-05 15:31:32,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-02-05 15:31:32,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:32,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:32,507 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-02-05 15:31:32,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:32,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604562769] [2025-02-05 15:31:32,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604562769] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:32,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214823325] [2025-02-05 15:31:32,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:32,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:32,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:32,512 INFO L229 MonitoredProcess]: Starting monitored process 30 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 15:31:32,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-02-05 15:31:32,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-02-05 15:31:32,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-02-05 15:31:32,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:32,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:32,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-05 15:31:32,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-02-05 15:31:32,880 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 15:31:33,063 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-02-05 15:31:33,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214823325] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 15:31:33,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 15:31:33,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 7] total 12 [2025-02-05 15:31:33,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864112248] [2025-02-05 15:31:33,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 15:31:33,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-05 15:31:33,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:33,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-05 15:31:33,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:31:33,064 INFO L87 Difference]: Start difference. First operand 13166 states and 21278 transitions. Second operand has 12 states, 12 states have (on average 14.916666666666666) internal successors, (179), 12 states have internal predecessors, (179), 4 states have call successors, (31), 3 states have call predecessors, (31), 6 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2025-02-05 15:31:36,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:36,043 INFO L93 Difference]: Finished difference Result 43475 states and 71387 transitions. [2025-02-05 15:31:36,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-02-05 15:31:36,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.916666666666666) internal successors, (179), 12 states have internal predecessors, (179), 4 states have call successors, (31), 3 states have call predecessors, (31), 6 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 168 [2025-02-05 15:31:36,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:36,214 INFO L225 Difference]: With dead ends: 43475 [2025-02-05 15:31:36,215 INFO L226 Difference]: Without dead ends: 30276 [2025-02-05 15:31:36,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 339 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=677, Unknown=0, NotChecked=0, Total=870 [2025-02-05 15:31:36,310 INFO L435 NwaCegarLoop]: 1991 mSDtfsCounter, 4526 mSDsluCounter, 10834 mSDsCounter, 0 mSdLazyCounter, 3044 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4537 SdHoareTripleChecker+Valid, 12825 SdHoareTripleChecker+Invalid, 3323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 3044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:36,310 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4537 Valid, 12825 Invalid, 3323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 3044 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-05 15:31:36,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30276 states. [2025-02-05 15:31:37,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30276 to 29667. [2025-02-05 15:31:37,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29667 states, 23855 states have (on average 1.5845734646824565) internal successors, (37800), 24445 states have internal predecessors, (37800), 4072 states have call successors, (4072), 1664 states have call predecessors, (4072), 1739 states have return successors, (5874), 4051 states have call predecessors, (5874), 4047 states have call successors, (5874) [2025-02-05 15:31:37,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29667 states to 29667 states and 47746 transitions. [2025-02-05 15:31:37,986 INFO L78 Accepts]: Start accepts. Automaton has 29667 states and 47746 transitions. Word has length 168 [2025-02-05 15:31:37,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:37,987 INFO L471 AbstractCegarLoop]: Abstraction has 29667 states and 47746 transitions. [2025-02-05 15:31:37,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.916666666666666) internal successors, (179), 12 states have internal predecessors, (179), 4 states have call successors, (31), 3 states have call predecessors, (31), 6 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2025-02-05 15:31:37,987 INFO L276 IsEmpty]: Start isEmpty. Operand 29667 states and 47746 transitions. [2025-02-05 15:31:37,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2025-02-05 15:31:37,996 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:37,996 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:31:38,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-02-05 15:31:38,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-02-05 15:31:38,197 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:38,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:38,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1792480371, now seen corresponding path program 1 times [2025-02-05 15:31:38,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:38,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681895141] [2025-02-05 15:31:38,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:38,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:38,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 185 statements into 1 equivalence classes. [2025-02-05 15:31:38,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 185 of 185 statements. [2025-02-05 15:31:38,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:38,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-02-05 15:31:38,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:38,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681895141] [2025-02-05 15:31:38,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681895141] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:38,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50930796] [2025-02-05 15:31:38,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:38,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:38,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:38,368 INFO L229 MonitoredProcess]: Starting monitored process 31 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 15:31:38,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-02-05 15:31:38,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 185 statements into 1 equivalence classes. [2025-02-05 15:31:38,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 185 of 185 statements. [2025-02-05 15:31:38,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:38,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:38,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-05 15:31:38,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:38,772 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2025-02-05 15:31:38,772 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:38,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50930796] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:38,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:38,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-02-05 15:31:38,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320537176] [2025-02-05 15:31:38,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:38,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 15:31:38,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:38,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 15:31:38,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:31:38,774 INFO L87 Difference]: Start difference. First operand 29667 states and 47746 transitions. Second operand has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:39,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:39,983 INFO L93 Difference]: Finished difference Result 59566 states and 95832 transitions. [2025-02-05 15:31:39,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:31:39,984 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 185 [2025-02-05 15:31:39,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:40,124 INFO L225 Difference]: With dead ends: 59566 [2025-02-05 15:31:40,125 INFO L226 Difference]: Without dead ends: 29929 [2025-02-05 15:31:40,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-02-05 15:31:40,232 INFO L435 NwaCegarLoop]: 985 mSDtfsCounter, 113 mSDsluCounter, 5791 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6776 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:40,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6776 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:31:40,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29929 states. [2025-02-05 15:31:41,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29929 to 29667. [2025-02-05 15:31:41,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29667 states, 23855 states have (on average 1.5845315447495285) internal successors, (37799), 24445 states have internal predecessors, (37799), 4072 states have call successors, (4072), 1664 states have call predecessors, (4072), 1739 states have return successors, (5874), 4051 states have call predecessors, (5874), 4047 states have call successors, (5874) [2025-02-05 15:31:41,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29667 states to 29667 states and 47745 transitions. [2025-02-05 15:31:41,341 INFO L78 Accepts]: Start accepts. Automaton has 29667 states and 47745 transitions. Word has length 185 [2025-02-05 15:31:41,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:41,341 INFO L471 AbstractCegarLoop]: Abstraction has 29667 states and 47745 transitions. [2025-02-05 15:31:41,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:41,341 INFO L276 IsEmpty]: Start isEmpty. Operand 29667 states and 47745 transitions. [2025-02-05 15:31:41,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-02-05 15:31:41,345 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:41,345 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:31:41,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-02-05 15:31:41,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:41,546 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:41,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:41,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1623395135, now seen corresponding path program 1 times [2025-02-05 15:31:41,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:41,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705835645] [2025-02-05 15:31:41,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:41,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:41,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-02-05 15:31:41,561 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-02-05 15:31:41,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:41,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:41,667 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-02-05 15:31:41,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:41,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705835645] [2025-02-05 15:31:41,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705835645] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:41,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697220049] [2025-02-05 15:31:41,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:41,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:41,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:41,670 INFO L229 MonitoredProcess]: Starting monitored process 32 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 15:31:41,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-02-05 15:31:41,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-02-05 15:31:41,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-02-05 15:31:41,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:41,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:41,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-05 15:31:41,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:41,977 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2025-02-05 15:31:41,978 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:41,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697220049] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:41,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:41,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2025-02-05 15:31:41,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119364741] [2025-02-05 15:31:41,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:41,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:31:41,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:41,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:31:41,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:41,980 INFO L87 Difference]: Start difference. First operand 29667 states and 47745 transitions. Second operand has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:43,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:43,441 INFO L93 Difference]: Finished difference Result 59529 states and 95795 transitions. [2025-02-05 15:31:43,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:31:43,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 186 [2025-02-05 15:31:43,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:43,658 INFO L225 Difference]: With dead ends: 59529 [2025-02-05 15:31:43,659 INFO L226 Difference]: Without dead ends: 29879 [2025-02-05 15:31:43,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 187 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 15:31:43,831 INFO L435 NwaCegarLoop]: 995 mSDtfsCounter, 122 mSDsluCounter, 4849 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 5844 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:43,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 5844 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:31:43,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29879 states. [2025-02-05 15:31:44,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29879 to 29660. [2025-02-05 15:31:44,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29660 states, 23848 states have (on average 1.5843676618584368) internal successors, (37784), 24438 states have internal predecessors, (37784), 4072 states have call successors, (4072), 1664 states have call predecessors, (4072), 1739 states have return successors, (5874), 4051 states have call predecessors, (5874), 4047 states have call successors, (5874) [2025-02-05 15:31:44,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29660 states to 29660 states and 47730 transitions. [2025-02-05 15:31:44,981 INFO L78 Accepts]: Start accepts. Automaton has 29660 states and 47730 transitions. Word has length 186 [2025-02-05 15:31:44,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:44,981 INFO L471 AbstractCegarLoop]: Abstraction has 29660 states and 47730 transitions. [2025-02-05 15:31:44,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:44,981 INFO L276 IsEmpty]: Start isEmpty. Operand 29660 states and 47730 transitions. [2025-02-05 15:31:44,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-02-05 15:31:44,986 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:44,987 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:31:44,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2025-02-05 15:31:45,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,32 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:45,187 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:45,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:45,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1502858914, now seen corresponding path program 1 times [2025-02-05 15:31:45,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:45,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314327563] [2025-02-05 15:31:45,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:45,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:45,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-02-05 15:31:45,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-02-05 15:31:45,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:45,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:45,251 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-02-05 15:31:45,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:45,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314327563] [2025-02-05 15:31:45,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314327563] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:45,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:31:45,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:31:45,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775632107] [2025-02-05 15:31:45,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:45,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:31:45,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:45,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:31:45,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:31:45,254 INFO L87 Difference]: Start difference. First operand 29660 states and 47730 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:46,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:46,530 INFO L93 Difference]: Finished difference Result 59275 states and 95405 transitions. [2025-02-05 15:31:46,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:31:46,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 187 [2025-02-05 15:31:46,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:46,666 INFO L225 Difference]: With dead ends: 59275 [2025-02-05 15:31:46,667 INFO L226 Difference]: Without dead ends: 29632 [2025-02-05 15:31:46,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 15:31:46,782 INFO L435 NwaCegarLoop]: 997 mSDtfsCounter, 8 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2985 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:46,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2985 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:31:46,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29632 states. [2025-02-05 15:31:47,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29632 to 29632. [2025-02-05 15:31:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29632 states, 23823 states have (on average 1.5842253284640893) internal successors, (37741), 24411 states have internal predecessors, (37741), 4071 states have call successors, (4071), 1664 states have call predecessors, (4071), 1737 states have return successors, (5871), 4050 states have call predecessors, (5871), 4046 states have call successors, (5871) [2025-02-05 15:31:48,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29632 states to 29632 states and 47683 transitions. [2025-02-05 15:31:48,100 INFO L78 Accepts]: Start accepts. Automaton has 29632 states and 47683 transitions. Word has length 187 [2025-02-05 15:31:48,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:48,100 INFO L471 AbstractCegarLoop]: Abstraction has 29632 states and 47683 transitions. [2025-02-05 15:31:48,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:48,101 INFO L276 IsEmpty]: Start isEmpty. Operand 29632 states and 47683 transitions. [2025-02-05 15:31:48,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-02-05 15:31:48,104 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:48,105 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:31:48,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-02-05 15:31:48,105 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:48,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:48,105 INFO L85 PathProgramCache]: Analyzing trace with hash -590416877, now seen corresponding path program 1 times [2025-02-05 15:31:48,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:48,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243057448] [2025-02-05 15:31:48,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:48,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:48,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-02-05 15:31:48,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-02-05 15:31:48,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:48,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:48,231 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2025-02-05 15:31:48,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:48,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243057448] [2025-02-05 15:31:48,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243057448] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:48,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:31:48,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 15:31:48,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345031542] [2025-02-05 15:31:48,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:48,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:31:48,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:48,233 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:31:48,233 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:31:48,234 INFO L87 Difference]: Start difference. First operand 29632 states and 47683 transitions. Second operand has 7 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:49,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:49,351 INFO L93 Difference]: Finished difference Result 59400 states and 95594 transitions. [2025-02-05 15:31:49,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:31:49,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 187 [2025-02-05 15:31:49,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:49,520 INFO L225 Difference]: With dead ends: 59400 [2025-02-05 15:31:49,520 INFO L226 Difference]: Without dead ends: 29825 [2025-02-05 15:31:49,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:31:49,644 INFO L435 NwaCegarLoop]: 996 mSDtfsCounter, 126 mSDsluCounter, 4855 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 5851 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:49,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 5851 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:31:49,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29825 states. [2025-02-05 15:31:50,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29825 to 29618. [2025-02-05 15:31:50,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29618 states, 23809 states have (on average 1.5840648494266873) internal successors, (37715), 24397 states have internal predecessors, (37715), 4071 states have call successors, (4071), 1664 states have call predecessors, (4071), 1737 states have return successors, (5871), 4050 states have call predecessors, (5871), 4046 states have call successors, (5871) [2025-02-05 15:31:51,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29618 states to 29618 states and 47657 transitions. [2025-02-05 15:31:51,102 INFO L78 Accepts]: Start accepts. Automaton has 29618 states and 47657 transitions. Word has length 187 [2025-02-05 15:31:51,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:51,102 INFO L471 AbstractCegarLoop]: Abstraction has 29618 states and 47657 transitions. [2025-02-05 15:31:51,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:31:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 29618 states and 47657 transitions. [2025-02-05 15:31:51,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-02-05 15:31:51,109 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:51,109 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:31:51,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-02-05 15:31:51,110 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:51,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:51,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1740480380, now seen corresponding path program 1 times [2025-02-05 15:31:51,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:51,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398547672] [2025-02-05 15:31:51,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:51,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:51,129 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 15:31:51,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 15:31:51,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:51,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:51,401 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-02-05 15:31:51,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:51,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398547672] [2025-02-05 15:31:51,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398547672] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:51,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548514043] [2025-02-05 15:31:51,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:51,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:51,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:51,404 INFO L229 MonitoredProcess]: Starting monitored process 33 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 15:31:51,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-02-05 15:31:51,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-02-05 15:31:51,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-02-05 15:31:51,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:51,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:51,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 1474 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-05 15:31:51,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:51,835 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-02-05 15:31:51,835 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:51,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548514043] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:51,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:51,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2025-02-05 15:31:51,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124790432] [2025-02-05 15:31:51,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:51,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:31:51,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:51,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:31:51,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:31:51,837 INFO L87 Difference]: Start difference. First operand 29618 states and 47657 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:53,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:53,226 INFO L93 Difference]: Finished difference Result 48885 states and 79309 transitions. [2025-02-05 15:31:53,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-05 15:31:53,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 188 [2025-02-05 15:31:53,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:53,360 INFO L225 Difference]: With dead ends: 48885 [2025-02-05 15:31:53,360 INFO L226 Difference]: Without dead ends: 19834 [2025-02-05 15:31:53,513 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-02-05 15:31:53,514 INFO L435 NwaCegarLoop]: 1037 mSDtfsCounter, 922 mSDsluCounter, 2813 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:53,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 3850 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 15:31:53,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19834 states. [2025-02-05 15:31:54,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19834 to 19753. [2025-02-05 15:31:54,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19753 states, 15963 states have (on average 1.5786506295809057) internal successors, (25200), 16326 states have internal predecessors, (25200), 2630 states have call successors, (2630), 1111 states have call predecessors, (2630), 1159 states have return successors, (3971), 2615 states have call predecessors, (3971), 2610 states have call successors, (3971) [2025-02-05 15:31:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19753 states to 19753 states and 31801 transitions. [2025-02-05 15:31:54,443 INFO L78 Accepts]: Start accepts. Automaton has 19753 states and 31801 transitions. Word has length 188 [2025-02-05 15:31:54,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:54,443 INFO L471 AbstractCegarLoop]: Abstraction has 19753 states and 31801 transitions. [2025-02-05 15:31:54,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:31:54,443 INFO L276 IsEmpty]: Start isEmpty. Operand 19753 states and 31801 transitions. [2025-02-05 15:31:54,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2025-02-05 15:31:54,447 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:54,447 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:31:54,458 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2025-02-05 15:31:54,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2025-02-05 15:31:54,648 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:54,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:54,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1101885694, now seen corresponding path program 1 times [2025-02-05 15:31:54,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:54,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222711518] [2025-02-05 15:31:54,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:54,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:54,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 193 statements into 1 equivalence classes. [2025-02-05 15:31:54,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 193 of 193 statements. [2025-02-05 15:31:54,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:54,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:54,855 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-02-05 15:31:54,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:54,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222711518] [2025-02-05 15:31:54,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222711518] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:54,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12296875] [2025-02-05 15:31:54,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:54,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:54,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:54,857 INFO L229 MonitoredProcess]: Starting monitored process 34 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 15:31:54,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-02-05 15:31:55,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 193 statements into 1 equivalence classes. [2025-02-05 15:31:55,132 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 193 of 193 statements. [2025-02-05 15:31:55,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:55,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:55,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 1491 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 15:31:55,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:55,153 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-02-05 15:31:55,154 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:55,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12296875] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:55,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:55,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2025-02-05 15:31:55,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300072976] [2025-02-05 15:31:55,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:55,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:31:55,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:55,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:31:55,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:31:55,155 INFO L87 Difference]: Start difference. First operand 19753 states and 31801 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:31:56,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:31:56,097 INFO L93 Difference]: Finished difference Result 48240 states and 78774 transitions. [2025-02-05 15:31:56,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:31:56,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 193 [2025-02-05 15:31:56,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:31:56,214 INFO L225 Difference]: With dead ends: 48240 [2025-02-05 15:31:56,214 INFO L226 Difference]: Without dead ends: 29057 [2025-02-05 15:31:56,283 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 199 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 15:31:56,283 INFO L435 NwaCegarLoop]: 1945 mSDtfsCounter, 975 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 2945 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:31:56,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 2945 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:31:56,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29057 states. [2025-02-05 15:31:57,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29057 to 28942. [2025-02-05 15:31:57,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28942 states, 23412 states have (on average 1.5805142661882796) internal successors, (37003), 23917 states have internal predecessors, (37003), 3835 states have call successors, (3835), 1618 states have call predecessors, (3835), 1694 states have return successors, (6120), 3850 states have call predecessors, (6120), 3810 states have call successors, (6120) [2025-02-05 15:31:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28942 states to 28942 states and 46958 transitions. [2025-02-05 15:31:57,305 INFO L78 Accepts]: Start accepts. Automaton has 28942 states and 46958 transitions. Word has length 193 [2025-02-05 15:31:57,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:31:57,305 INFO L471 AbstractCegarLoop]: Abstraction has 28942 states and 46958 transitions. [2025-02-05 15:31:57,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:31:57,306 INFO L276 IsEmpty]: Start isEmpty. Operand 28942 states and 46958 transitions. [2025-02-05 15:31:57,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2025-02-05 15:31:57,309 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:31:57,309 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:31:57,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2025-02-05 15:31:57,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,34 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:57,509 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:31:57,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:31:57,510 INFO L85 PathProgramCache]: Analyzing trace with hash 679614241, now seen corresponding path program 1 times [2025-02-05 15:31:57,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:31:57,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991159556] [2025-02-05 15:31:57,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:57,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:31:57,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 193 statements into 1 equivalence classes. [2025-02-05 15:31:57,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 193 of 193 statements. [2025-02-05 15:31:57,526 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:57,526 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:57,681 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-02-05 15:31:57,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:31:57,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991159556] [2025-02-05 15:31:57,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991159556] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:31:57,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504243814] [2025-02-05 15:31:57,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:31:57,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:31:57,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:31:57,684 INFO L229 MonitoredProcess]: Starting monitored process 35 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 15:31:57,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-02-05 15:31:57,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 193 statements into 1 equivalence classes. [2025-02-05 15:31:57,960 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 193 of 193 statements. [2025-02-05 15:31:57,960 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:31:57,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:31:57,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 1490 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-05 15:31:57,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:31:58,184 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-02-05 15:31:58,185 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:31:58,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504243814] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:31:58,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:31:58,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2025-02-05 15:31:58,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827004864] [2025-02-05 15:31:58,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:31:58,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:31:58,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:31:58,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:31:58,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2025-02-05 15:31:58,186 INFO L87 Difference]: Start difference. First operand 28942 states and 46958 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2025-02-05 15:32:03,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:32:03,500 INFO L93 Difference]: Finished difference Result 61119 states and 99694 transitions. [2025-02-05 15:32:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:32:03,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) Word has length 193 [2025-02-05 15:32:03,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:32:03,686 INFO L225 Difference]: With dead ends: 61119 [2025-02-05 15:32:03,686 INFO L226 Difference]: Without dead ends: 32814 [2025-02-05 15:32:03,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2025-02-05 15:32:03,858 INFO L435 NwaCegarLoop]: 736 mSDtfsCounter, 2887 mSDsluCounter, 1939 mSDsCounter, 0 mSdLazyCounter, 7774 mSolverCounterSat, 626 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3006 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 8400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 626 IncrementalHoareTripleChecker+Valid, 7774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-02-05 15:32:03,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3006 Valid, 2675 Invalid, 8400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [626 Valid, 7774 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-02-05 15:32:03,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32814 states. [2025-02-05 15:32:05,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32814 to 31493. [2025-02-05 15:32:05,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31493 states, 25485 states have (on average 1.5779478124386894) internal successors, (40214), 26030 states have internal predecessors, (40214), 4163 states have call successors, (4163), 1764 states have call predecessors, (4163), 1844 states have return successors, (6720), 4178 states have call predecessors, (6720), 4138 states have call successors, (6720) [2025-02-05 15:32:05,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31493 states to 31493 states and 51097 transitions. [2025-02-05 15:32:05,487 INFO L78 Accepts]: Start accepts. Automaton has 31493 states and 51097 transitions. Word has length 193 [2025-02-05 15:32:05,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:32:05,487 INFO L471 AbstractCegarLoop]: Abstraction has 31493 states and 51097 transitions. [2025-02-05 15:32:05,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (17), 4 states have call predecessors, (17), 4 states have call successors, (17) [2025-02-05 15:32:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 31493 states and 51097 transitions. [2025-02-05 15:32:05,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2025-02-05 15:32:05,490 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:32:05,490 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2025-02-05 15:32:05,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0