./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test12.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version c7c6ca5d
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_1.5.800.v20200727-1323.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/ldv-regression/test12.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 a7ec0ddf4067238fb2036f4b1ba04b3da310b5a0f4281916240f2abfe32c0d19
--- Real Ultimate output ---
This is Ultimate 0.2.5-?-c7c6ca5-m
[2024-11-08 13:48:31,798 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 13:48:31,878 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 13:48:31,883 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 13:48:31,884 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 13:48:31,911 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 13:48:31,912 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 13:48:31,912 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 13:48:31,913 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 13:48:31,913 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 13:48:31,914 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 13:48:31,914 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 13:48:31,915 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 13:48:31,915 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 13:48:31,916 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 13:48:31,916 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 13:48:31,917 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 13:48:31,917 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-08 13:48:31,917 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 13:48:31,918 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-08 13:48:31,918 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 13:48:31,919 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 13:48:31,919 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 13:48:31,920 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 13:48:31,920 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 13:48:31,920 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-08 13:48:31,921 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 13:48:31,921 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 13:48:31,921 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 13:48:31,922 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 13:48:31,922 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 13:48:31,922 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 13:48:31,922 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 13:48:31,923 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 13:48:31,923 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 13:48:31,923 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 13:48:31,924 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 13:48:31,924 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 13:48:31,924 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 13:48:31,924 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 13:48:31,925 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 13:48:31,925 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 13:48:31,925 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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 -> a7ec0ddf4067238fb2036f4b1ba04b3da310b5a0f4281916240f2abfe32c0d19
[2024-11-08 13:48:32,178 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 13:48:32,203 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 13:48:32,207 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 13:48:32,208 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 13:48:32,208 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 13:48:32,209 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test12.c
[2024-11-08 13:48:33,655 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 13:48:33,843 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 13:48:33,844 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test12.c
[2024-11-08 13:48:33,850 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045b1c8f2/c7b6daec71c84abe811e88823295bed6/FLAG4883aa280
[2024-11-08 13:48:33,862 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/045b1c8f2/c7b6daec71c84abe811e88823295bed6
[2024-11-08 13:48:33,864 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 13:48:33,866 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 13:48:33,867 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 13:48:33,868 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 13:48:33,873 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 13:48:33,874 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 01:48:33" (1/1) ...
[2024-11-08 13:48:33,875 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@95f1565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:33, skipping insertion in model container
[2024-11-08 13:48:33,875 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 01:48:33" (1/1) ...
[2024-11-08 13:48:33,891 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 13:48:34,051 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/ldv-regression/test12.c[377,390]
[2024-11-08 13:48:34,058 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 13:48:34,067 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 13:48:34,078 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/ldv-regression/test12.c[377,390]
[2024-11-08 13:48:34,079 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 13:48:34,095 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 13:48:34,096 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34 WrapperNode
[2024-11-08 13:48:34,096 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 13:48:34,097 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 13:48:34,097 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 13:48:34,097 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 13:48:34,107 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ...
[2024-11-08 13:48:34,119 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ...
[2024-11-08 13:48:34,135 INFO  L138                Inliner]: procedures = 12, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27
[2024-11-08 13:48:34,135 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 13:48:34,136 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 13:48:34,137 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 13:48:34,137 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 13:48:34,145 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ...
[2024-11-08 13:48:34,146 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ...
[2024-11-08 13:48:34,147 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ...
[2024-11-08 13:48:34,155 INFO  L175           MemorySlicer]: Split 4 memory accesses to 3 slices as follows [2, 1, 1]. 50 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 1, 1]. The 0 writes are split as follows [0, 0, 0].
[2024-11-08 13:48:34,156 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ...
[2024-11-08 13:48:34,156 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ...
[2024-11-08 13:48:34,158 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ...
[2024-11-08 13:48:34,159 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ...
[2024-11-08 13:48:34,160 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ...
[2024-11-08 13:48:34,161 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ...
[2024-11-08 13:48:34,162 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 13:48:34,163 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 13:48:34,163 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 13:48:34,163 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 13:48:34,164 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (1/1) ...
[2024-11-08 13:48:34,171 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 13:48:34,181 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-08 13:48:34,197 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)
[2024-11-08 13:48:34,201 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
[2024-11-08 13:48:34,250 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 13:48:34,250 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 13:48:34,250 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 13:48:34,250 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 13:48:34,251 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 13:48:34,251 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-08 13:48:34,323 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 13:48:34,326 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 13:48:34,440 INFO  L?                        ?]: Removed 14 outVars from TransFormulas that were not future-live.
[2024-11-08 13:48:34,440 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 13:48:34,456 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 13:48:34,457 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 13:48:34,457 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 01:48:34 BoogieIcfgContainer
[2024-11-08 13:48:34,457 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 13:48:34,460 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 13:48:34,461 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 13:48:34,464 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 13:48:34,464 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 01:48:33" (1/3) ...
[2024-11-08 13:48:34,465 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d90b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 01:48:34, skipping insertion in model container
[2024-11-08 13:48:34,466 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:48:34" (2/3) ...
[2024-11-08 13:48:34,466 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d90b9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 01:48:34, skipping insertion in model container
[2024-11-08 13:48:34,467 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 01:48:34" (3/3) ...
[2024-11-08 13:48:34,468 INFO  L112   eAbstractionObserver]: Analyzing ICFG test12.c
[2024-11-08 13:48:34,487 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 13:48:34,487 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 13:48:34,537 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 13:48:34,544 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;@600eadb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 13:48:34,544 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 13:48:34,548 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 13:48:34,556 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-11-08 13:48:34,556 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 13:48:34,557 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-11-08 13:48:34,557 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 13:48:34,562 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 13:48:34,562 INFO  L85        PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times
[2024-11-08 13:48:34,569 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 13:48:34,570 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862602357]
[2024-11-08 13:48:34,570 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 13:48:34,570 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 13:48:34,649 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 13:48:34,650 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-11-08 13:48:34,700 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-11-08 13:48:34,719 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-11-08 13:48:34,721 INFO  L325         BasicCegarLoop]: Counterexample is feasible
[2024-11-08 13:48:34,722 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-08 13:48:34,725 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 13:48:34,729 INFO  L407         BasicCegarLoop]: Path program histogram: [1]
[2024-11-08 13:48:34,763 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 13:48:34,766 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 01:48:34 BoogieIcfgContainer
[2024-11-08 13:48:34,766 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 13:48:34,767 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 13:48:34,767 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-08 13:48:34,767 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-08 13:48:34,768 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 01:48:34" (3/4) ...
[2024-11-08 13:48:34,770 INFO  L136         WitnessPrinter]: Generating witness for reachability counterexample
[2024-11-08 13:48:34,808 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-08 13:48:34,808 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 13:48:34,809 INFO  L158              Benchmark]: Toolchain (without parser) took 943.50ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 93.0MB in the beginning and 168.8MB in the end (delta: -75.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 13:48:34,810 INFO  L158              Benchmark]: CDTParser took 0.10ms. Allocated memory is still 144.7MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 13:48:34,810 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 228.83ms. Allocated memory is still 144.7MB. Free memory was 93.0MB in the beginning and 81.2MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-08 13:48:34,812 INFO  L158              Benchmark]: Boogie Procedure Inliner took 38.82ms. Allocated memory is still 144.7MB. Free memory was 81.2MB in the beginning and 79.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 13:48:34,813 INFO  L158              Benchmark]: Boogie Preprocessor took 25.73ms. Allocated memory is still 144.7MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 13:48:34,816 INFO  L158              Benchmark]: RCFGBuilder took 294.63ms. Allocated memory is still 144.7MB. Free memory was 77.9MB in the beginning and 68.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-11-08 13:48:34,817 INFO  L158              Benchmark]: TraceAbstraction took 306.33ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 67.5MB in the beginning and 171.8MB in the end (delta: -104.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 13:48:34,817 INFO  L158              Benchmark]: Witness Printer took 41.27ms. Allocated memory is still 201.3MB. Free memory was 171.8MB in the beginning and 168.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-08 13:48:34,819 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.10ms. Allocated memory is still 144.7MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 228.83ms. Allocated memory is still 144.7MB. Free memory was 93.0MB in the beginning and 81.2MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 38.82ms. Allocated memory is still 144.7MB. Free memory was 81.2MB in the beginning and 79.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
 * Boogie Preprocessor took 25.73ms. Allocated memory is still 144.7MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 294.63ms. Allocated memory is still 144.7MB. Free memory was 77.9MB in the beginning and 68.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 306.33ms. Allocated memory was 144.7MB in the beginning and 201.3MB in the end (delta: 56.6MB). Free memory was 67.5MB in the beginning and 171.8MB in the end (delta: -104.3MB). There was no memory consumed. Max. memory is 16.1GB.
 * Witness Printer took 41.27ms. Allocated memory is still 201.3MB. Free memory was 171.8MB in the beginning and 168.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - CounterExampleResult [Line: 12]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L16]             int a, b;
[L16]             int a, b;
[L16]             int a, b;
[L16]             int a, b;
       VAL        [a={4:0}, b={5:0}]
[L19]  CALL       equal(&a, &b)
[L7]   COND TRUE  a != b
       VAL        [a={4:0}, b={5:0}]
[L12]             reach_error()
       VAL        [a={4:0}, b={5:0}]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2024-11-08 13:48:34,850 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE