./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Haystacks-13.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 48c9605d
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/xcsp/Haystacks-13.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 723a0d61b7822a39b4ed348e660569e97a5ec142d751530662490cf84604d065
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-48c9605-m
[2025-02-07 21:33:16,170 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-07 21:33:16,244 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-02-07 21:33:16,253 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-07 21:33:16,254 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-07 21:33:16,274 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-07 21:33:16,275 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-07 21:33:16,275 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-07 21:33:16,276 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-07 21:33:16,276 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-07 21:33:16,277 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-07 21:33:16,277 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-07 21:33:16,277 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-07 21:33:16,278 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-07 21:33:16,278 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-07 21:33:16,278 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-07 21:33:16,278 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-07 21:33:16,278 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-02-07 21:33:16,279 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-07 21:33:16,279 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-02-07 21:33:16,279 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-07 21:33:16,279 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-07 21:33:16,279 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-07 21:33:16,279 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-07 21:33:16,279 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-02-07 21:33:16,279 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-07 21:33:16,279 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-07 21:33:16,280 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-07 21:33:16,280 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-07 21:33:16,280 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-07 21:33:16,280 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-07 21:33:16,280 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-07 21:33:16,280 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-07 21:33:16,280 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-07 21:33:16,281 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-07 21:33:16,281 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-07 21:33:16,281 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-07 21:33:16,281 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-07 21:33:16,281 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-07 21:33:16,281 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-07 21:33:16,281 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-07 21:33:16,281 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-07 21:33:16,281 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-07 21:33:16,281 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 -> 723a0d61b7822a39b4ed348e660569e97a5ec142d751530662490cf84604d065
[2025-02-07 21:33:16,544 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-07 21:33:16,557 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-07 21:33:16,560 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-07 21:33:16,561 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-07 21:33:16,561 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-07 21:33:16,562 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Haystacks-13.c
[2025-02-07 21:33:17,841 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c4decc491/cffce6921a9f473cbaf3f131b4c99fdf/FLAG25eefa5f0
[2025-02-07 21:33:18,249 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-07 21:33:18,250 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-13.c
[2025-02-07 21:33:18,267 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c4decc491/cffce6921a9f473cbaf3f131b4c99fdf/FLAG25eefa5f0
[2025-02-07 21:33:18,286 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c4decc491/cffce6921a9f473cbaf3f131b4c99fdf
[2025-02-07 21:33:18,290 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-07 21:33:18,291 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-07 21:33:18,293 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-07 21:33:18,293 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-07 21:33:18,297 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-07 21:33:18,299 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:18,300 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a7b3d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18, skipping insertion in model container
[2025-02-07 21:33:18,300 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:18,352 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-07 21:33:18,701 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/xcsp/Haystacks-13.c[59103,59116]
[2025-02-07 21:33:18,720 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-07 21:33:18,732 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-07 21:33:18,833 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/xcsp/Haystacks-13.c[59103,59116]
[2025-02-07 21:33:18,846 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-07 21:33:18,859 INFO  L204         MainTranslator]: Completed translation
[2025-02-07 21:33:18,860 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18 WrapperNode
[2025-02-07 21:33:18,860 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-07 21:33:18,862 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-07 21:33:18,862 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-07 21:33:18,862 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-07 21:33:18,868 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:18,896 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:18,986 INFO  L138                Inliner]: procedures = 13, calls = 1515, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2369
[2025-02-07 21:33:18,987 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-07 21:33:18,988 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-07 21:33:18,988 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-07 21:33:18,988 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-07 21:33:18,996 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:18,996 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:19,012 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:19,040 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2025-02-07 21:33:19,040 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:19,040 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:19,069 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:19,075 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:19,088 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:19,101 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:19,114 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-07 21:33:19,115 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-07 21:33:19,115 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-07 21:33:19,115 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-07 21:33:19,116 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (1/1) ...
[2025-02-07 21:33:19,121 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-07 21:33:19,136 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-07 21:33:19,150 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)
[2025-02-07 21:33:19,154 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
[2025-02-07 21:33:19,176 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-07 21:33:19,176 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-07 21:33:19,176 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-07 21:33:19,176 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-07 21:33:19,177 INFO  L130     BoogieDeclarations]: Found specification of procedure assume
[2025-02-07 21:33:19,177 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume
[2025-02-07 21:33:19,332 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-07 21:33:19,334 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-07 21:33:23,132 INFO  L?                        ?]: Removed 3 outVars from TransFormulas that were not future-live.
[2025-02-07 21:33:23,133 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-07 21:33:23,186 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-07 21:33:23,186 INFO  L337             CfgBuilder]: Removed 0 assume(true) statements.
[2025-02-07 21:33:23,187 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:33:23 BoogieIcfgContainer
[2025-02-07 21:33:23,187 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-07 21:33:23,188 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-07 21:33:23,189 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-07 21:33:23,192 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-07 21:33:23,193 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:33:18" (1/3) ...
[2025-02-07 21:33:23,193 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653f75d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:33:23, skipping insertion in model container
[2025-02-07 21:33:23,194 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:33:18" (2/3) ...
[2025-02-07 21:33:23,194 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653f75d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:33:23, skipping insertion in model container
[2025-02-07 21:33:23,194 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:33:23" (3/3) ...
[2025-02-07 21:33:23,195 INFO  L128   eAbstractionObserver]: Analyzing ICFG Haystacks-13.c
[2025-02-07 21:33:23,208 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-07 21:33:23,209 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG Haystacks-13.c that has 2 procedures, 1686 locations, 1 initial locations, 0 loop locations, and 1 error locations.
[2025-02-07 21:33:23,320 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-07 21:33:23,330 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;@6f900f89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-07 21:33:23,331 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-07 21:33:23,340 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1686 states, 175 states have (on average 1.0114285714285713) internal successors, (177), 176 states have internal predecessors, (177), 1508 states have call successors, (1508), 1 states have call predecessors, (1508), 1 states have return successors, (1508), 1508 states have call predecessors, (1508), 1508 states have call successors, (1508)
[2025-02-07 21:33:23,807 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7712
[2025-02-07 21:33:23,807 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 21:33:23,810 INFO  L218           NwaCegarLoop]: trace histogram [1508, 1508, 1508, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-02-07 21:33:23,811 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 21:33:23,818 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 21:33:23,820 INFO  L85        PathProgramCache]: Analyzing trace with hash -1987424321, now seen corresponding path program 1 times
[2025-02-07 21:33:23,827 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 21:33:23,830 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839934069]
[2025-02-07 21:33:23,831 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 21:33:23,832 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 21:33:24,254 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7711 statements into 1 equivalence classes.
[2025-02-07 21:33:24,338 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7711 of 7711 statements.
[2025-02-07 21:33:24,338 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 21:33:24,339 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 21:33:32,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 4545112 backedges. 0 proven. 3014 refuted. 0 times theorem prover too weak. 4542098 trivial. 0 not checked.
[2025-02-07 21:33:32,223 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-07 21:33:32,223 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839934069]
[2025-02-07 21:33:32,224 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839934069] provided 0 perfect and 1 imperfect interpolant sequences
[2025-02-07 21:33:32,224 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376526209]
[2025-02-07 21:33:32,225 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 21:33:32,225 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-07 21:33:32,225 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-07 21:33:32,229 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)
[2025-02-07 21:33:32,231 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
[2025-02-07 21:33:33,087 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7711 statements into 1 equivalence classes.
[2025-02-07 21:33:34,549 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7711 of 7711 statements.
[2025-02-07 21:33:34,550 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 21:33:34,550 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-07 21:33:34,597 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13936 conjuncts, 1 conjuncts are in the unsatisfiable core
[2025-02-07 21:33:34,810 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-02-07 21:33:35,312 INFO  L134       CoverageAnalysis]: Checked inductivity of 4545112 backedges. 3014 proven. 0 refuted. 0 times theorem prover too weak. 4542098 trivial. 0 not checked.
[2025-02-07 21:33:35,313 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-02-07 21:33:35,313 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [376526209] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-07 21:33:35,313 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-02-07 21:33:35,314 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2025-02-07 21:33:35,316 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902773485]
[2025-02-07 21:33:35,317 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-07 21:33:35,327 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-02-07 21:33:35,327 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-07 21:33:35,352 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-02-07 21:33:35,353 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-02-07 21:33:35,363 INFO  L87              Difference]: Start difference. First operand  has 1686 states, 175 states have (on average 1.0114285714285713) internal successors, (177), 176 states have internal predecessors, (177), 1508 states have call successors, (1508), 1 states have call predecessors, (1508), 1 states have return successors, (1508), 1508 states have call predecessors, (1508), 1508 states have call successors, (1508) Second operand  has 2 states, 2 states have (on average 88.0) internal successors, (176), 2 states have internal predecessors, (176), 2 states have call successors, (1508), 2 states have call predecessors, (1508), 1 states have return successors, (1508), 1 states have call predecessors, (1508), 2 states have call successors, (1508)
[2025-02-07 21:33:35,614 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-07 21:33:35,615 INFO  L93              Difference]: Finished difference Result 3368 states and 7890 transitions.
[2025-02-07 21:33:35,616 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-02-07 21:33:35,620 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 88.0) internal successors, (176), 2 states have internal predecessors, (176), 2 states have call successors, (1508), 2 states have call predecessors, (1508), 1 states have return successors, (1508), 1 states have call predecessors, (1508), 2 states have call successors, (1508) Word has length 7711
[2025-02-07 21:33:35,620 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-07 21:33:35,659 INFO  L225             Difference]: With dead ends: 3368
[2025-02-07 21:33:35,660 INFO  L226             Difference]: Without dead ends: 1684
[2025-02-07 21:33:35,683 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7712 GetRequests, 7712 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-02-07 21:33:35,686 INFO  L435           NwaCegarLoop]: 3190 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, 3190 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
[2025-02-07 21:33:35,686 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3190 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-02-07 21:33:35,702 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1684 states.
[2025-02-07 21:33:36,760 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684.
[2025-02-07 21:33:36,766 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1684 states, 174 states have (on average 1.0) internal successors, (174), 174 states have internal predecessors, (174), 1508 states have call successors, (1508), 1 states have call predecessors, (1508), 1 states have return successors, (1508), 1508 states have call predecessors, (1508), 1508 states have call successors, (1508)
[2025-02-07 21:33:36,789 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 3190 transitions.
[2025-02-07 21:33:36,802 INFO  L78                 Accepts]: Start accepts. Automaton has 1684 states and 3190 transitions. Word has length 7711
[2025-02-07 21:33:36,805 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-07 21:33:36,806 INFO  L471      AbstractCegarLoop]: Abstraction has 1684 states and 3190 transitions.
[2025-02-07 21:33:36,808 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 88.0) internal successors, (176), 2 states have internal predecessors, (176), 2 states have call successors, (1508), 2 states have call predecessors, (1508), 1 states have return successors, (1508), 1 states have call predecessors, (1508), 2 states have call successors, (1508)
[2025-02-07 21:33:36,808 INFO  L276                IsEmpty]: Start isEmpty. Operand 1684 states and 3190 transitions.
[2025-02-07 21:33:37,167 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7712
[2025-02-07 21:33:37,168 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-07 21:33:37,170 INFO  L218           NwaCegarLoop]: trace histogram [1508, 1508, 1508, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-02-07 21:33:37,195 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-02-07 21:33:37,371 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2025-02-07 21:33:37,372 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-07 21:33:37,374 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-07 21:33:37,375 INFO  L85        PathProgramCache]: Analyzing trace with hash -378284353, now seen corresponding path program 1 times
[2025-02-07 21:33:37,375 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-07 21:33:37,376 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585124305]
[2025-02-07 21:33:37,376 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 21:33:37,376 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-07 21:33:37,620 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7711 statements into 1 equivalence classes.
[2025-02-07 21:33:54,864 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7711 of 7711 statements.
[2025-02-07 21:33:54,865 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-07 21:33:54,865 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2025-02-07 21:33:54,936 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679477043]
[2025-02-07 21:33:54,937 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-07 21:33:54,937 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-07 21:33:54,938 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-07 21:33:54,940 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-02-07 21:33:54,951 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-02-07 21:33:55,612 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7711 statements into 1 equivalence classes.