./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 798a7b37
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-798a7b3-m
[2025-03-03 14:57:16,429 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-03 14:57:16,474 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-03-03 14:57:16,479 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-03 14:57:16,479 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-03 14:57:16,502 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-03 14:57:16,503 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-03 14:57:16,503 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-03 14:57:16,503 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-03 14:57:16,503 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-03 14:57:16,504 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-03 14:57:16,504 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-03 14:57:16,504 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-03 14:57:16,504 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-03 14:57:16,504 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-03 14:57:16,505 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-03 14:57:16,505 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-03 14:57:16,505 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-03 14:57:16,506 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-03 14:57:16,506 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-03 14:57:16,506 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 14:57:16,506 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-03 14:57:16,506 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-03 14:57:16,506 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-03 14:57:16,506 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-03 14:57:16,506 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-03 14:57:16,506 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-03 14:57:16,506 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-03 14:57:16,506 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-03 14:57:16,506 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-03 14:57:16,506 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-03 14:57:16,506 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/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
[2025-03-03 14:57:16,717 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-03 14:57:16,724 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-03 14:57:16,725 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-03 14:57:16,728 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-03 14:57:16,729 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-03 14:57:16,729 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c
[2025-03-03 14:57:17,813 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cd84a4fb/955f53f1a28b4acfbb030d29c63a2d7b/FLAG439082127
[2025-03-03 14:57:18,211 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-03 14:57:18,213 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c
[2025-03-03 14:57:18,245 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cd84a4fb/955f53f1a28b4acfbb030d29c63a2d7b/FLAG439082127
[2025-03-03 14:57:18,371 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cd84a4fb/955f53f1a28b4acfbb030d29c63a2d7b
[2025-03-03 14:57:18,374 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-03 14:57:18,375 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-03 14:57:18,376 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-03 14:57:18,376 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-03 14:57:18,380 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-03 14:57:18,380 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:57:18" (1/1) ...
[2025-03-03 14:57:18,382 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17edc2f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:18, skipping insertion in model container
[2025-03-03 14:57:18,382 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:57:18" (1/1) ...
[2025-03-03 14:57:18,479 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-03 14:57:18,646 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c[2195,2208]
[2025-03-03 14:57:19,358 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 14:57:19,384 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-03 14:57:19,390 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok2.i","-S") [51]
[2025-03-03 14:57:19,395 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c[2195,2208]
[2025-03-03 14:57:19,989 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 14:57:20,074 INFO  L204         MainTranslator]: Completed translation
[2025-03-03 14:57:20,074 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20 WrapperNode
[2025-03-03 14:57:20,075 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-03 14:57:20,081 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-03 14:57:20,081 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-03 14:57:20,082 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-03 14:57:20,086 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (1/1) ...
[2025-03-03 14:57:20,300 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (1/1) ...
[2025-03-03 14:57:21,861 INFO  L138                Inliner]: procedures = 59, calls = 18819, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 40930
[2025-03-03 14:57:21,862 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-03 14:57:21,863 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-03 14:57:21,863 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-03 14:57:21,863 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-03 14:57:21,875 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (1/1) ...
[2025-03-03 14:57:21,876 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (1/1) ...
[2025-03-03 14:57:22,425 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (1/1) ...
[2025-03-03 14:57:22,717 INFO  L175           MemorySlicer]: Split 14537 memory accesses to 20 slices as follows [2, 194, 17, 9, 8, 2784, 3812, 2400, 2, 1676, 1252, 852, 325, 429, 325, 429, 7, 2, 8, 4]. 26 percent of accesses are in the largest equivalence class. The 664 initializations are split as follows [2, 0, 8, 4, 0, 96, 96, 8, 0, 8, 4, 4, 108, 108, 108, 108, 2, 0, 0, 0]. The 761 writes are split as follows [0, 98, 1, 1, 4, 96, 96, 8, 1, 8, 4, 4, 109, 107, 109, 107, 3, 1, 4, 0].
[2025-03-03 14:57:22,717 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (1/1) ...
[2025-03-03 14:57:22,718 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (1/1) ...
[2025-03-03 14:57:23,172 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (1/1) ...
[2025-03-03 14:57:23,215 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (1/1) ...
[2025-03-03 14:57:23,333 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (1/1) ...
[2025-03-03 14:57:23,492 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (1/1) ...
[2025-03-03 14:57:23,716 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-03 14:57:23,717 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-03 14:57:23,717 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-03 14:57:23,717 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-03 14:57:23,718 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (1/1) ...
[2025-03-03 14:57:23,723 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 14:57:23,733 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 14:57:23,746 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-03-03 14:57:23,749 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-03-03 14:57:23,766 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-03 14:57:23,766 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t2
[2025-03-03 14:57:23,767 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2
[2025-03-03 14:57:23,767 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode
[2025-03-03 14:57:23,767 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode
[2025-03-03 14:57:23,767 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#0
[2025-03-03 14:57:23,767 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#1
[2025-03-03 14:57:23,767 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#2
[2025-03-03 14:57:23,768 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#3
[2025-03-03 14:57:23,768 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#4
[2025-03-03 14:57:23,768 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#5
[2025-03-03 14:57:23,768 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#6
[2025-03-03 14:57:23,768 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#7
[2025-03-03 14:57:23,768 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#8
[2025-03-03 14:57:23,768 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#9
[2025-03-03 14:57:23,768 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#10
[2025-03-03 14:57:23,769 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#11
[2025-03-03 14:57:23,769 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#12
[2025-03-03 14:57:23,769 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#13
[2025-03-03 14:57:23,769 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#14
[2025-03-03 14:57:23,769 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#15
[2025-03-03 14:57:23,769 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#16
[2025-03-03 14:57:23,770 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#17
[2025-03-03 14:57:23,770 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#18
[2025-03-03 14:57:23,770 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#19
[2025-03-03 14:57:23,770 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-03-03 14:57:23,770 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t0
[2025-03-03 14:57:23,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0
[2025-03-03 14:57:23,770 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t1
[2025-03-03 14:57:23,770 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1
[2025-03-03 14:57:23,771 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag
[2025-03-03 14:57:23,771 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag
[2025-03-03 14:57:23,771 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2025-03-03 14:57:23,771 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2025-03-03 14:57:23,771 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2025-03-03 14:57:23,771 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#3
[2025-03-03 14:57:23,771 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#4
[2025-03-03 14:57:23,771 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#5
[2025-03-03 14:57:23,771 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#6
[2025-03-03 14:57:23,771 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#7
[2025-03-03 14:57:23,771 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#8
[2025-03-03 14:57:23,772 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#9
[2025-03-03 14:57:23,772 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#10
[2025-03-03 14:57:23,772 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#11
[2025-03-03 14:57:23,772 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#12
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#13
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#14
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#15
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#16
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#17
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#18
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#19
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_count
[2025-03-03 14:57:23,773 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor
[2025-03-03 14:57:23,773 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1
[2025-03-03 14:57:23,773 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2
[2025-03-03 14:57:23,773 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background
[2025-03-03 14:57:23,773 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2025-03-03 14:57:23,773 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#4
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#5
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#6
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#7
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#8
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#9
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#10
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#11
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#12
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#13
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#14
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#15
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#16
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#17
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#18
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#19
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2025-03-03 14:57:23,774 INFO  L138     BoogieDeclarations]: Found implementation of procedure assert
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed
[2025-03-03 14:57:23,774 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-03-03 14:57:23,774 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#8
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#9
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#10
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#11
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#12
[2025-03-03 14:57:23,774 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#13
[2025-03-03 14:57:23,775 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#14
[2025-03-03 14:57:23,775 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#15
[2025-03-03 14:57:23,775 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#16
[2025-03-03 14:57:23,775 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#17
[2025-03-03 14:57:23,775 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#18
[2025-03-03 14:57:23,775 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#19
[2025-03-03 14:57:23,775 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-03 14:57:23,775 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-03 14:57:23,775 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms
[2025-03-03 14:57:23,775 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms
[2025-03-03 14:57:23,775 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_get_count
[2025-03-03 14:57:23,775 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count
[2025-03-03 14:57:23,775 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode
[2025-03-03 14:57:23,775 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode
[2025-03-03 14:57:25,090 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-03 14:57:25,091 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-03 14:57:25,384 INFO  L1325  $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;
[2025-03-03 14:57:25,385 INFO  L1325  $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;
[2025-03-03 14:57:51,644 INFO  L?                        ?]: Removed 277 outVars from TransFormulas that were not future-live.
[2025-03-03 14:57:51,645 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-03 14:57:51,780 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-03 14:57:51,780 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-03 14:57:51,780 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:57:51 BoogieIcfgContainer
[2025-03-03 14:57:51,780 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-03 14:57:51,782 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-03 14:57:51,782 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-03 14:57:51,785 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-03 14:57:51,786 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 02:57:18" (1/3) ...
[2025-03-03 14:57:51,786 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d54b2a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:57:51, skipping insertion in model container
[2025-03-03 14:57:51,787 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:20" (2/3) ...
[2025-03-03 14:57:51,787 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d54b2a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:57:51, skipping insertion in model container
[2025-03-03 14:57:51,787 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:57:51" (3/3) ...
[2025-03-03 14:57:51,789 INFO  L128   eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c
[2025-03-03 14:57:51,800 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-03 14:57:51,803 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.
[2025-03-03 14:57:52,029 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-03 14:57:52,038 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;@6b20d3e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-03 14:57:52,038 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-03 14:57:52,068 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)
[2025-03-03 14:57:52,360 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4617
[2025-03-03 14:57:52,361 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 14:57:52,363 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, 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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]
[2025-03-03 14:57:52,364 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 14:57:52,373 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 14:57:52,375 INFO  L85        PathProgramCache]: Analyzing trace with hash 1189056988, now seen corresponding path program 1 times
[2025-03-03 14:57:52,380 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 14:57:52,381 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981203298]
[2025-03-03 14:57:52,382 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 14:57:52,382 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 14:58:03,413 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4616 statements into 1 equivalence classes.
[2025-03-03 14:58:03,610 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4616 of 4616 statements.
[2025-03-03 14:58:03,610 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 14:58:03,610 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:58:07,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 226464 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked.
[2025-03-03 14:58:07,052 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 14:58:07,053 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981203298]
[2025-03-03 14:58:07,053 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981203298] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 14:58:07,053 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905887674]
[2025-03-03 14:58:07,054 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 14:58:07,054 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 14:58:07,054 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 14:58:07,057 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 14:58:07,059 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-03-03 14:58:19,137 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4616 statements into 1 equivalence classes.
[2025-03-03 14:58:20,406 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4616 of 4616 statements.
[2025-03-03 14:58:20,406 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 14:58:20,406 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:58:20,504 INFO  L256         TraceCheckSpWp]: Trace formula consists of 14218 conjuncts, 1 conjuncts are in the unsatisfiable core
[2025-03-03 14:58:20,619 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 14:58:20,784 INFO  L134       CoverageAnalysis]: Checked inductivity of 226464 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked.
[2025-03-03 14:58:20,785 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-03 14:58:20,785 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905887674] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 14:58:20,785 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-03 14:58:20,786 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2025-03-03 14:58:20,787 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021611290]
[2025-03-03 14:58:20,788 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 14:58:20,795 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-03-03 14:58:20,795 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 14:58:20,812 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-03-03 14:58:20,812 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-03 14:58:20,839 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)
[2025-03-03 14:58:21,276 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 14:58:21,277 INFO  L93              Difference]: Finished difference Result 24473 states and 42144 transitions.
[2025-03-03 14:58:21,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-03-03 14:58:21,280 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
[2025-03-03 14:58:21,280 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 14:58:21,373 INFO  L225             Difference]: With dead ends: 24473
[2025-03-03 14:58:21,374 INFO  L226             Difference]: Without dead ends: 12231
[2025-03-03 14:58:21,445 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
[2025-03-03 14:58:21,449 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
[2025-03-03 14:58:21,450 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]
[2025-03-03 14:58:21,481 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12231 states.
[2025-03-03 14:58:26,931 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12231 to 12231.
[2025-03-03 14:58:26,957 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12231 states, 7988 states have (on average 1.3154732098147222) internal successors, (10508), 8101 states have internal predecessors, (10508), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4225), 4223 states have call predecessors, (4225), 4225 states have call successors, (4225)
[2025-03-03 14:58:27,011 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12231 states to 12231 states and 18959 transitions.
[2025-03-03 14:58:27,030 INFO  L78                 Accepts]: Start accepts. Automaton has 12231 states and 18959 transitions. Word has length 4616
[2025-03-03 14:58:27,032 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-03 14:58:27,032 INFO  L471      AbstractCegarLoop]: Abstraction has 12231 states and 18959 transitions.
[2025-03-03 14:58:27,033 INFO  L472      AbstractCegarLoop]: INTERPOLANT 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)
[2025-03-03 14:58:27,034 INFO  L276                IsEmpty]: Start isEmpty. Operand 12231 states and 18959 transitions.
[2025-03-03 14:58:27,241 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4617
[2025-03-03 14:58:27,241 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 14:58:27,243 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, 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[2025-03-03 14:58:27,283 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-03-03 14:58:27,444 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2025-03-03 14:58:27,444 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 14:58:27,446 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 14:58:27,447 INFO  L85        PathProgramCache]: Analyzing trace with hash -1202474217, now seen corresponding path program 1 times
[2025-03-03 14:58:27,447 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 14:58:27,447 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747476397]
[2025-03-03 14:58:27,448 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 14:58:27,448 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 14:58:36,779 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4616 statements into 1 equivalence classes.