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


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


Checking for ERROR reachability
Using default analysis
Version 8be7027f
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/test_address.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 3a826eb5c8e097062cd7be567a6d255c69df3ae3f3f4b1c711571fc2bf6cc27b
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m
[2024-11-11 19:28:07,220 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-11 19:28:07,317 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-11 19:28:07,325 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-11 19:28:07,326 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-11 19:28:07,365 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-11 19:28:07,365 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-11 19:28:07,366 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-11 19:28:07,366 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-11 19:28:07,366 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-11 19:28:07,367 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-11 19:28:07,367 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-11 19:28:07,367 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-11 19:28:07,368 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-11 19:28:07,368 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-11 19:28:07,373 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-11 19:28:07,374 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-11 19:28:07,376 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-11 19:28:07,376 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-11 19:28:07,376 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-11 19:28:07,376 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-11 19:28:07,384 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-11 19:28:07,384 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-11 19:28:07,385 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-11 19:28:07,385 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-11 19:28:07,385 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-11 19:28:07,385 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-11 19:28:07,385 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-11 19:28:07,385 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-11 19:28:07,386 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-11 19:28:07,386 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-11 19:28:07,386 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-11 19:28:07,386 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-11 19:28:07,386 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-11 19:28:07,386 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-11 19:28:07,387 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-11 19:28:07,387 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-11 19:28:07,387 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-11 19:28:07,387 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-11 19:28:07,387 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-11 19:28:07,387 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-11 19:28:07,391 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-11 19:28:07,391 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 -> 3a826eb5c8e097062cd7be567a6d255c69df3ae3f3f4b1c711571fc2bf6cc27b
[2024-11-11 19:28:07,733 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-11 19:28:07,753 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-11 19:28:07,756 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-11 19:28:07,757 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-11 19:28:07,757 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-11 19:28:07,758 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_address.c
[2024-11-11 19:28:09,061 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-11 19:28:09,210 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-11 19:28:09,212 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_address.c
[2024-11-11 19:28:09,218 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e20e35434/874f512a6c0d4a8fa0931345be15049c/FLAG003146552
[2024-11-11 19:28:09,633 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e20e35434/874f512a6c0d4a8fa0931345be15049c
[2024-11-11 19:28:09,636 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-11 19:28:09,637 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-11 19:28:09,638 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-11 19:28:09,638 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-11 19:28:09,644 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-11 19:28:09,644 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,645 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722a32d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09, skipping insertion in model container
[2024-11-11 19:28:09,645 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,659 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-11 19:28:09,781 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/test_address.c[293,306]
[2024-11-11 19:28:09,795 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-11 19:28:09,810 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-11 19:28:09,819 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/test_address.c[293,306]
[2024-11-11 19:28:09,822 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-11 19:28:09,835 INFO  L204         MainTranslator]: Completed translation
[2024-11-11 19:28:09,838 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09 WrapperNode
[2024-11-11 19:28:09,838 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-11 19:28:09,839 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-11 19:28:09,839 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-11 19:28:09,839 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-11 19:28:09,845 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,849 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,896 INFO  L138                Inliner]: procedures = 15, calls = 12, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 21
[2024-11-11 19:28:09,898 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-11 19:28:09,898 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-11 19:28:09,898 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-11 19:28:09,898 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-11 19:28:09,928 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,929 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,929 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,944 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].
[2024-11-11 19:28:09,945 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,945 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,954 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,955 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,955 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,956 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,962 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-11 19:28:09,963 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-11 19:28:09,963 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-11 19:28:09,963 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-11 19:28:09,964 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (1/1) ...
[2024-11-11 19:28:09,969 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-11 19:28:09,993 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-11 19:28:10,013 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)
[2024-11-11 19:28:10,029 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
[2024-11-11 19:28:10,081 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-11 19:28:10,081 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-11 19:28:10,081 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-11 19:28:10,081 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-11 19:28:10,081 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-11 19:28:10,082 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-11 19:28:10,137 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-11 19:28:10,139 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-11 19:28:10,218 INFO  L?                        ?]: Removed 13 outVars from TransFormulas that were not future-live.
[2024-11-11 19:28:10,222 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-11 19:28:10,233 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-11 19:28:10,233 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-11 19:28:10,233 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 07:28:10 BoogieIcfgContainer
[2024-11-11 19:28:10,233 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-11 19:28:10,235 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-11 19:28:10,236 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-11 19:28:10,238 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-11 19:28:10,238 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 07:28:09" (1/3) ...
[2024-11-11 19:28:10,239 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bbcbe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 07:28:10, skipping insertion in model container
[2024-11-11 19:28:10,240 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 07:28:09" (2/3) ...
[2024-11-11 19:28:10,240 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bbcbe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 07:28:10, skipping insertion in model container
[2024-11-11 19:28:10,241 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 07:28:10" (3/3) ...
[2024-11-11 19:28:10,242 INFO  L112   eAbstractionObserver]: Analyzing ICFG test_address.c
[2024-11-11 19:28:10,254 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-11 19:28:10,254 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-11 19:28:10,303 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-11 19:28:10,309 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;@cc4cb3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-11 19:28:10,310 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-11 19:28:10,313 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 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)
[2024-11-11 19:28:10,318 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-11-11 19:28:10,318 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-11 19:28:10,319 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-11-11 19:28:10,320 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-11 19:28:10,323 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-11 19:28:10,324 INFO  L85        PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times
[2024-11-11 19:28:10,331 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-11 19:28:10,332 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205511662]
[2024-11-11 19:28:10,332 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-11 19:28:10,332 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-11 19:28:10,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-11 19:28:10,539 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-11 19:28:10,539 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-11 19:28:10,539 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205511662]
[2024-11-11 19:28:10,540 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205511662] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-11 19:28:10,540 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-11 19:28:10,540 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-11 19:28:10,544 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528474793]
[2024-11-11 19:28:10,544 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-11 19:28:10,547 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-11 19:28:10,547 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-11 19:28:10,567 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-11 19:28:10,568 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 19:28:10,570 INFO  L87              Difference]: Start difference. First operand  has 11 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 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) Second operand  has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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)
[2024-11-11 19:28:10,584 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-11 19:28:10,584 INFO  L93              Difference]: Finished difference Result 16 states and 15 transitions.
[2024-11-11 19:28:10,588 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-11 19:28:10,589 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4
[2024-11-11 19:28:10,589 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-11 19:28:10,593 INFO  L225             Difference]: With dead ends: 16
[2024-11-11 19:28:10,593 INFO  L226             Difference]: Without dead ends: 0
[2024-11-11 19:28:10,595 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-11 19:28:10,598 INFO  L435           NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-11 19:28:10,600 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-11 19:28:10,613 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-11 19:28:10,616 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-11 19:28:10,617 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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)
[2024-11-11 19:28:10,617 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-11 19:28:10,618 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4
[2024-11-11 19:28:10,619 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-11 19:28:10,619 INFO  L471      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-11 19:28:10,619 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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)
[2024-11-11 19:28:10,619 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-11 19:28:10,619 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-11 19:28:10,621 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-11 19:28:10,622 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-11 19:28:10,624 INFO  L421         BasicCegarLoop]: Path program histogram: [1]
[2024-11-11 19:28:10,626 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-11 19:28:10,632 INFO  L170   ceAbstractionStarter]: Computing trace abstraction results
[2024-11-11 19:28:10,639 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 07:28:10 BoogieIcfgContainer
[2024-11-11 19:28:10,639 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-11 19:28:10,640 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-11 19:28:10,640 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-11-11 19:28:10,640 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-11-11 19:28:10,641 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 07:28:10" (3/4) ...
[2024-11-11 19:28:10,642 INFO  L142         WitnessPrinter]: Generating witness for correct program
[2024-11-11 19:28:10,648 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges
[2024-11-11 19:28:10,648 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-11-11 19:28:10,648 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-11 19:28:10,648 INFO  L925   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-11 19:28:10,703 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-11-11 19:28:10,704 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-11-11 19:28:10,704 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-11 19:28:10,704 INFO  L158              Benchmark]: Toolchain (without parser) took 1067.15ms. Allocated memory is still 167.8MB. Free memory was 98.3MB in the beginning and 101.9MB in the end (delta: -3.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-11 19:28:10,704 INFO  L158              Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-11 19:28:10,705 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 200.28ms. Allocated memory is still 167.8MB. Free memory was 98.0MB in the beginning and 85.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-11-11 19:28:10,705 INFO  L158              Benchmark]: Boogie Procedure Inliner took 58.90ms. Allocated memory is still 167.8MB. Free memory was 85.9MB in the beginning and 140.7MB in the end (delta: -54.8MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB.
[2024-11-11 19:28:10,705 INFO  L158              Benchmark]: Boogie Preprocessor took 64.35ms. Allocated memory is still 167.8MB. Free memory was 140.7MB in the beginning and 139.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-11-11 19:28:10,706 INFO  L158              Benchmark]: RCFGBuilder took 270.24ms. Allocated memory is still 167.8MB. Free memory was 139.0MB in the beginning and 129.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-11-11 19:28:10,706 INFO  L158              Benchmark]: TraceAbstraction took 404.12ms. Allocated memory is still 167.8MB. Free memory was 128.5MB in the beginning and 106.1MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
[2024-11-11 19:28:10,707 INFO  L158              Benchmark]: Witness Printer took 63.81ms. Allocated memory is still 167.8MB. Free memory was 106.1MB in the beginning and 101.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-11 19:28:10,708 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 124.7MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 200.28ms. Allocated memory is still 167.8MB. Free memory was 98.0MB in the beginning and 85.9MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 58.90ms. Allocated memory is still 167.8MB. Free memory was 85.9MB in the beginning and 140.7MB in the end (delta: -54.8MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 64.35ms. Allocated memory is still 167.8MB. Free memory was 140.7MB in the beginning and 139.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 270.24ms. Allocated memory is still 167.8MB. Free memory was 139.0MB in the beginning and 129.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * TraceAbstraction took 404.12ms. Allocated memory is still 167.8MB. Free memory was 128.5MB in the beginning and 106.1MB in the end (delta: 22.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB.
 * Witness Printer took 63.81ms. Allocated memory is still 167.8MB. Free memory was 106.1MB in the beginning and 101.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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
  - PositiveResult [Line: 7]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 6 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-11-11 19:28:10,731 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
Result:
TRUE