./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.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/seq-mthreaded/rekcba_nxt.2.M4-1.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 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-c00e63d-m
[2025-02-05 16:22:39,661 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-05 16:22:39,732 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-02-05 16:22:39,738 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-05 16:22:39,738 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-05 16:22:39,762 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-05 16:22:39,763 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-05 16:22:39,763 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-05 16:22:39,764 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-05 16:22:39,764 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-05 16:22:39,764 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-05 16:22:39,764 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-05 16:22:39,764 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-05 16:22:39,765 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-05 16:22:39,765 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-05 16:22:39,765 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-05 16:22:39,765 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-05 16:22:39,765 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-02-05 16:22:39,765 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-05 16:22:39,765 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-02-05 16:22:39,765 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-05 16:22:39,766 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-05 16:22:39,766 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-05 16:22:39,766 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-05 16:22:39,766 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-02-05 16:22:39,766 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-05 16:22:39,766 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-05 16:22:39,766 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-05 16:22:39,766 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-05 16:22:39,766 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-05 16:22:39,767 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-05 16:22:39,767 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-05 16:22:39,767 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 16:22:39,767 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-05 16:22:39,767 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-05 16:22:39,767 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-05 16:22:39,767 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-05 16:22:39,767 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-05 16:22:39,767 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-05 16:22:39,768 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-05 16:22:39,768 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-05 16:22:39,768 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-05 16:22:39,768 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-05 16:22:39,768 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 -> 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a
[2025-02-05 16:22:40,047 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-05 16:22:40,058 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-05 16:22:40,060 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-05 16:22:40,062 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-05 16:22:40,062 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-05 16:22:40,063 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c
[2025-02-05 16:22:41,354 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9117b5162/c0d5c0e11d8b45d490e6ba556f05b4e4/FLAGb4f98c6b1
[2025-02-05 16:22:41,887 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-05 16:22:41,888 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c
[2025-02-05 16:22:41,930 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9117b5162/c0d5c0e11d8b45d490e6ba556f05b4e4/FLAGb4f98c6b1
[2025-02-05 16:22:41,943 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9117b5162/c0d5c0e11d8b45d490e6ba556f05b4e4
[2025-02-05 16:22:41,945 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-05 16:22:41,947 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-05 16:22:41,948 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-05 16:22:41,949 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-05 16:22:41,953 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-05 16:22:41,954 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:22:41" (1/1) ...
[2025-02-05 16:22:41,956 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@741d628a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:41, skipping insertion in model container
[2025-02-05 16:22:41,956 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:22:41" (1/1) ...
[2025-02-05 16:22:42,082 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-05 16:22:42,288 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/seq-mthreaded/rekcba_nxt.2.M4-1.c[2195,2208]
[2025-02-05 16:22:43,305 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 16:22:43,340 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-05 16:22:43,348 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok2.i","-S") [51]
[2025-02-05 16:22:43,355 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/seq-mthreaded/rekcba_nxt.2.M4-1.c[2195,2208]
[2025-02-05 16:22:44,208 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 16:22:44,248 INFO  L204         MainTranslator]: Completed translation
[2025-02-05 16:22:44,249 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44 WrapperNode
[2025-02-05 16:22:44,250 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-05 16:22:44,251 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-05 16:22:44,251 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-05 16:22:44,251 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-05 16:22:44,257 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (1/1) ...
[2025-02-05 16:22:44,560 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (1/1) ...
[2025-02-05 16:22:46,273 INFO  L138                Inliner]: procedures = 59, calls = 18819, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 40930
[2025-02-05 16:22:46,273 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-05 16:22:46,274 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-05 16:22:46,274 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-05 16:22:46,274 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-05 16:22:46,284 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (1/1) ...
[2025-02-05 16:22:46,285 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (1/1) ...
[2025-02-05 16:22:46,841 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (1/1) ...
[2025-02-05 16:22:47,274 INFO  L175           MemorySlicer]: Split 14537 memory accesses to 20 slices as follows [8, 2, 194, 17, 9, 2784, 4, 2, 3812, 2400, 1676, 1252, 852, 325, 429, 325, 429, 8, 7, 2]. 26 percent of accesses are in the largest equivalence class. The 664 initializations are split as follows [0, 2, 0, 8, 4, 96, 0, 0, 96, 8, 8, 4, 4, 108, 108, 108, 108, 0, 2, 0]. The 761 writes are split as follows [4, 0, 98, 1, 1, 96, 0, 1, 96, 8, 8, 4, 4, 109, 107, 109, 107, 4, 3, 1].
[2025-02-05 16:22:47,274 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (1/1) ...
[2025-02-05 16:22:47,274 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (1/1) ...
[2025-02-05 16:22:48,434 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (1/1) ...
[2025-02-05 16:22:48,488 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (1/1) ...
[2025-02-05 16:22:48,566 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (1/1) ...
[2025-02-05 16:22:48,629 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (1/1) ...
[2025-02-05 16:22:48,903 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-05 16:22:48,904 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-05 16:22:48,905 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-05 16:22:48,905 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-05 16:22:48,906 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (1/1) ...
[2025-02-05 16:22:48,909 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 16:22:48,920 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-05 16:22:48,933 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 16:22:48,936 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 16:22:48,951 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-05 16:22:48,951 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t2
[2025-02-05 16:22:48,951 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2
[2025-02-05 16:22:48,951 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode
[2025-02-05 16:22:48,951 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode
[2025-02-05 16:22:48,951 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#0
[2025-02-05 16:22:48,951 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#1
[2025-02-05 16:22:48,951 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#2
[2025-02-05 16:22:48,951 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#3
[2025-02-05 16:22:48,951 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#4
[2025-02-05 16:22:48,951 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#5
[2025-02-05 16:22:48,951 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#6
[2025-02-05 16:22:48,951 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#7
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#8
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#9
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#10
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#11
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#12
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#13
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#14
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#15
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#16
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#17
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#18
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#19
[2025-02-05 16:22:48,952 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-02-05 16:22:48,953 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t0
[2025-02-05 16:22:48,953 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0
[2025-02-05 16:22:48,953 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t1
[2025-02-05 16:22:48,953 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1
[2025-02-05 16:22:48,953 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag
[2025-02-05 16:22:48,953 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag
[2025-02-05 16:22:48,953 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2025-02-05 16:22:48,953 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2025-02-05 16:22:48,953 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2025-02-05 16:22:48,953 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#3
[2025-02-05 16:22:48,953 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#4
[2025-02-05 16:22:48,954 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#5
[2025-02-05 16:22:48,954 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#6
[2025-02-05 16:22:48,954 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#7
[2025-02-05 16:22:48,954 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#8
[2025-02-05 16:22:48,954 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#9
[2025-02-05 16:22:48,954 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#10
[2025-02-05 16:22:48,954 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#11
[2025-02-05 16:22:48,954 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#12
[2025-02-05 16:22:48,954 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#13
[2025-02-05 16:22:48,955 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#14
[2025-02-05 16:22:48,955 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#15
[2025-02-05 16:22:48,955 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#16
[2025-02-05 16:22:48,955 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#17
[2025-02-05 16:22:48,955 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#18
[2025-02-05 16:22:48,955 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#19
[2025-02-05 16:22:48,955 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_count
[2025-02-05 16:22:48,955 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count
[2025-02-05 16:22:48,955 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor
[2025-02-05 16:22:48,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor
[2025-02-05 16:22:48,956 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1
[2025-02-05 16:22:48,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1
[2025-02-05 16:22:48,956 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2
[2025-02-05 16:22:48,956 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2
[2025-02-05 16:22:48,956 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-02-05 16:22:48,956 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background
[2025-02-05 16:22:48,958 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#4
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#5
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#6
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#7
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#8
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#9
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#10
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#11
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#12
[2025-02-05 16:22:48,959 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#13
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#14
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#15
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#16
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#17
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#18
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#19
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2025-02-05 16:22:48,960 INFO  L138     BoogieDeclarations]: Found implementation of procedure assert
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed
[2025-02-05 16:22:48,960 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-02-05 16:22:48,960 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#8
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#9
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#10
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#11
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#12
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#13
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#14
[2025-02-05 16:22:48,960 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#15
[2025-02-05 16:22:48,961 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#16
[2025-02-05 16:22:48,961 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#17
[2025-02-05 16:22:48,961 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#18
[2025-02-05 16:22:48,961 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#19
[2025-02-05 16:22:48,961 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-05 16:22:48,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-05 16:22:48,961 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms
[2025-02-05 16:22:48,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms
[2025-02-05 16:22:48,961 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_get_count
[2025-02-05 16:22:48,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count
[2025-02-05 16:22:48,961 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode
[2025-02-05 16:22:48,961 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode
[2025-02-05 16:22:50,526 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-05 16:22:50,528 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-05 16:22:50,883 INFO  L1309  $ProcedureCfgBuilder]: dead code at ProgramPoint L218: call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset);havoc OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset;call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset);havoc OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset;
[2025-02-05 16:22:50,884 INFO  L1309  $ProcedureCfgBuilder]: dead code at ProgramPoint L91: call ULTIMATE.dealloc(balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset);havoc balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset;call ULTIMATE.dealloc(balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset);havoc balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset;
[2025-02-05 16:23:24,463 INFO  L?                        ?]: Removed 277 outVars from TransFormulas that were not future-live.
[2025-02-05 16:23:24,464 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-05 16:23:24,679 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-05 16:23:24,679 INFO  L337             CfgBuilder]: Removed 0 assume(true) statements.
[2025-02-05 16:23:24,679 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:23:24 BoogieIcfgContainer
[2025-02-05 16:23:24,680 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-05 16:23:24,682 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-05 16:23:24,682 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-05 16:23:24,687 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-05 16:23:24,687 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 04:22:41" (1/3) ...
[2025-02-05 16:23:24,689 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53476c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:23:24, skipping insertion in model container
[2025-02-05 16:23:24,689 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:22:44" (2/3) ...
[2025-02-05 16:23:24,689 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53476c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:23:24, skipping insertion in model container
[2025-02-05 16:23:24,689 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:23:24" (3/3) ...
[2025-02-05 16:23:24,690 INFO  L128   eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c
[2025-02-05 16:23:24,704 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-05 16:23:24,707 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG rekcba_nxt.2.M4-1.c that has 17 procedures, 12239 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-05 16:23:25,080 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-05 16:23:25,092 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;@2972e812, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-05 16:23:25,093 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-05 16:23:25,133 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 12239 states, 7995 states have (on average 1.3155722326454033) internal successors, (10518), 8108 states have internal predecessors, (10518), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226)
[2025-02-05 16:23:25,626 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4617
[2025-02-05 16:23:25,627 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 16:23:25,631 INFO  L218           NwaCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:23:25,632 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 16:23:25,642 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 16:23:25,644 INFO  L85        PathProgramCache]: Analyzing trace with hash 1189056988, now seen corresponding path program 1 times
[2025-02-05 16:23:25,652 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 16:23:25,653 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309006403]
[2025-02-05 16:23:25,654 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 16:23:25,654 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 16:23:36,914 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4616 statements into 1 equivalence classes.
[2025-02-05 16:23:37,191 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4616 of 4616 statements.
[2025-02-05 16:23:37,193 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 16:23:37,193 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 16:23:41,412 INFO  L134       CoverageAnalysis]: Checked inductivity of 226464 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked.
[2025-02-05 16:23:41,413 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 16:23:41,413 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309006403]
[2025-02-05 16:23:41,413 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309006403] provided 0 perfect and 1 imperfect interpolant sequences
[2025-02-05 16:23:41,414 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823755815]
[2025-02-05 16:23:41,415 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 16:23:41,415 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-05 16:23:41,415 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-05 16:23:41,418 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 16:23:41,420 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 16:23:53,852 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4616 statements into 1 equivalence classes.
[2025-02-05 16:23:55,505 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4616 of 4616 statements.
[2025-02-05 16:23:55,505 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 16:23:55,505 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 16:23:55,600 INFO  L256         TraceCheckSpWp]: Trace formula consists of 14218 conjuncts, 1 conjuncts are in the unsatisfiable core
[2025-02-05 16:23:55,757 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-02-05 16:23:55,982 INFO  L134       CoverageAnalysis]: Checked inductivity of 226464 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked.
[2025-02-05 16:23:55,982 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-02-05 16:23:55,983 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [823755815] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 16:23:55,983 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-02-05 16:23:55,984 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2025-02-05 16:23:55,986 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311179891]
[2025-02-05 16:23:55,986 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 16:23:55,995 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-02-05 16:23:55,995 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 16:23:56,017 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-02-05 16:23:56,018 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-02-05 16:23:56,049 INFO  L87              Difference]: Start difference. First operand  has 12239 states, 7995 states have (on average 1.3155722326454033) internal successors, (10518), 8108 states have internal predecessors, (10518), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226) Second operand  has 2 states, 2 states have (on average 1467.5) internal successors, (2935), 2 states have internal predecessors, (2935), 2 states have call successors, (338), 2 states have call predecessors, (338), 1 states have return successors, (337), 1 states have call predecessors, (337), 2 states have call successors, (337)
[2025-02-05 16:23:56,642 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 16:23:56,643 INFO  L93              Difference]: Finished difference Result 24473 states and 42144 transitions.
[2025-02-05 16:23:56,644 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-02-05 16:23:56,650 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 1467.5) internal successors, (2935), 2 states have internal predecessors, (2935), 2 states have call successors, (338), 2 states have call predecessors, (338), 1 states have return successors, (337), 1 states have call predecessors, (337), 2 states have call successors, (337) Word has length 4616
[2025-02-05 16:23:56,651 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 16:23:56,775 INFO  L225             Difference]: With dead ends: 24473
[2025-02-05 16:23:56,775 INFO  L226             Difference]: Without dead ends: 12231
[2025-02-05 16:23:56,869 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4617 GetRequests, 4617 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-02-05 16:23:56,874 INFO  L435           NwaCegarLoop]: 18968 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, 18968 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 16:23:56,876 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18968 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-02-05 16:23:56,916 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12231 states.