./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_build.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 61a67961
Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_build.i -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 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m
[2024-10-14 02:01:29,160 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-14 02:01:29,226 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-10-14 02:01:29,232 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-14 02:01:29,233 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-14 02:01:29,261 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-14 02:01:29,262 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-14 02:01:29,262 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-14 02:01:29,263 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-14 02:01:29,263 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-14 02:01:29,265 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-14 02:01:29,265 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-14 02:01:29,265 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-14 02:01:29,269 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-14 02:01:29,269 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-14 02:01:29,269 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-14 02:01:29,269 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-14 02:01:29,270 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-10-14 02:01:29,270 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-14 02:01:29,270 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-10-14 02:01:29,270 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-14 02:01:29,272 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-14 02:01:29,273 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-14 02:01:29,273 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-14 02:01:29,273 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-14 02:01:29,273 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-10-14 02:01:29,273 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-14 02:01:29,274 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-14 02:01:29,274 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-14 02:01:29,274 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-14 02:01:29,274 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-14 02:01:29,274 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-14 02:01:29,275 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-14 02:01:29,275 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-14 02:01:29,275 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-14 02:01:29,275 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-14 02:01:29,275 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-14 02:01:29,276 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-14 02:01:29,276 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-14 02:01:29,276 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-14 02:01:29,277 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-14 02:01:29,277 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-14 02:01:29,277 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 -> 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106
[2024-10-14 02:01:29,547 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-14 02:01:29,570 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-14 02:01:29,574 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-14 02:01:29,575 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-14 02:01:29,575 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-14 02:01:29,576 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_build.i
[2024-10-14 02:01:30,991 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-14 02:01:31,178 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-14 02:01:31,179 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_build.i
[2024-10-14 02:01:31,185 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492d980cc/fd7d71b83d25479db2d8ac90e05f1ef4/FLAG6ee0179ce
[2024-10-14 02:01:31,196 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492d980cc/fd7d71b83d25479db2d8ac90e05f1ef4
[2024-10-14 02:01:31,198 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-14 02:01:31,200 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-14 02:01:31,201 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-14 02:01:31,201 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-14 02:01:31,207 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-14 02:01:31,207 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,208 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe197a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31, skipping insertion in model container
[2024-10-14 02:01:31,208 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,225 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-14 02:01:31,366 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_build.i[893,906]
[2024-10-14 02:01:31,382 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-14 02:01:31,397 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-14 02:01:31,420 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_build.i[893,906]
[2024-10-14 02:01:31,424 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-14 02:01:31,441 INFO  L204         MainTranslator]: Completed translation
[2024-10-14 02:01:31,441 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31 WrapperNode
[2024-10-14 02:01:31,442 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-14 02:01:31,443 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-14 02:01:31,443 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-14 02:01:31,443 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-14 02:01:31,449 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,455 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,471 INFO  L138                Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36
[2024-10-14 02:01:31,471 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-14 02:01:31,472 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-14 02:01:31,472 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-14 02:01:31,472 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-14 02:01:31,481 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,481 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,484 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,493 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].
[2024-10-14 02:01:31,494 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,494 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,498 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,502 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,503 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,508 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,509 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-14 02:01:31,510 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-14 02:01:31,510 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-14 02:01:31,510 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-14 02:01:31,511 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (1/1) ...
[2024-10-14 02:01:31,517 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-14 02:01:31,527 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-14 02:01:31,551 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)
[2024-10-14 02:01:31,554 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
[2024-10-14 02:01:31,597 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-14 02:01:31,598 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-14 02:01:31,598 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-14 02:01:31,598 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-14 02:01:31,598 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-10-14 02:01:31,598 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-10-14 02:01:31,649 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-14 02:01:31,651 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-14 02:01:31,804 INFO  L?                        ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-10-14 02:01:31,805 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-14 02:01:31,825 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-14 02:01:31,825 INFO  L314             CfgBuilder]: Removed 2 assume(true) statements.
[2024-10-14 02:01:31,826 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:01:31 BoogieIcfgContainer
[2024-10-14 02:01:31,826 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-14 02:01:31,828 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-14 02:01:31,828 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-14 02:01:31,831 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-14 02:01:31,831 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 02:01:31" (1/3) ...
[2024-10-14 02:01:31,832 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479cc68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:01:31, skipping insertion in model container
[2024-10-14 02:01:31,832 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 02:01:31" (2/3) ...
[2024-10-14 02:01:31,832 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479cc68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 02:01:31, skipping insertion in model container
[2024-10-14 02:01:31,833 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:01:31" (3/3) ...
[2024-10-14 02:01:31,834 INFO  L112   eAbstractionObserver]: Analyzing ICFG id_build.i
[2024-10-14 02:01:31,849 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-14 02:01:31,849 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-14 02:01:31,909 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-14 02:01:31,918 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;@222489, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-14 02:01:31,918 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-14 02:01:31,922 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 15 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-10-14 02:01:31,933 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-10-14 02:01:31,936 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 02:01:31,937 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-10-14 02:01:31,938 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 02:01:31,942 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 02:01:31,942 INFO  L85        PathProgramCache]: Analyzing trace with hash -822356528, now seen corresponding path program 1 times
[2024-10-14 02:01:31,953 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 02:01:31,953 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629466247]
[2024-10-14 02:01:31,954 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 02:01:31,955 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 02:01:32,069 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 02:01:32,250 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 02:01:32,251 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-14 02:01:32,251 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629466247]
[2024-10-14 02:01:32,251 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629466247] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 02:01:32,252 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 02:01:32,252 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-10-14 02:01:32,257 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588011412]
[2024-10-14 02:01:32,258 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 02:01:32,261 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-14 02:01:32,262 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-14 02:01:32,283 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-14 02:01:32,284 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-14 02:01:32,286 INFO  L87              Difference]: Start difference. First operand  has 15 states, 10 states have (on average 1.6) internal successors, (16), 11 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 02:01:32,358 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 02:01:32,358 INFO  L93              Difference]: Finished difference Result 33 states and 45 transitions.
[2024-10-14 02:01:32,362 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-14 02:01:32,363 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-10-14 02:01:32,363 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 02:01:32,368 INFO  L225             Difference]: With dead ends: 33
[2024-10-14 02:01:32,368 INFO  L226             Difference]: Without dead ends: 17
[2024-10-14 02:01:32,370 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-10-14 02:01:32,373 INFO  L432           NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-14 02:01:32,374 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 36 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-14 02:01:32,386 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2024-10-14 02:01:32,398 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2024-10-14 02:01:32,399 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-10-14 02:01:32,400 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions.
[2024-10-14 02:01:32,401 INFO  L78                 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 7
[2024-10-14 02:01:32,401 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 02:01:32,401 INFO  L471      AbstractCegarLoop]: Abstraction has 17 states and 18 transitions.
[2024-10-14 02:01:32,402 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 02:01:32,402 INFO  L276                IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions.
[2024-10-14 02:01:32,402 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-10-14 02:01:32,403 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 02:01:32,403 INFO  L215           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-14 02:01:32,403 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-14 02:01:32,403 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 02:01:32,404 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 02:01:32,404 INFO  L85        PathProgramCache]: Analyzing trace with hash 1152830067, now seen corresponding path program 1 times
[2024-10-14 02:01:32,404 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 02:01:32,404 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772990987]
[2024-10-14 02:01:32,404 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 02:01:32,404 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 02:01:32,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 02:01:32,509 INFO  L368   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-10-14 02:01:32,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 02:01:32,526 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 02:01:32,527 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-14 02:01:32,528 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772990987]
[2024-10-14 02:01:32,528 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772990987] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 02:01:32,528 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 02:01:32,528 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-10-14 02:01:32,529 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552442312]
[2024-10-14 02:01:32,529 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 02:01:32,530 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-14 02:01:32,530 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-14 02:01:32,531 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-14 02:01:32,531 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-14 02:01:32,532 INFO  L87              Difference]: Start difference. First operand 17 states and 18 transitions. Second operand  has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-10-14 02:01:32,581 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 02:01:32,582 INFO  L93              Difference]: Finished difference Result 17 states and 18 transitions.
[2024-10-14 02:01:32,583 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-14 02:01:32,583 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2024-10-14 02:01:32,583 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 02:01:32,584 INFO  L225             Difference]: With dead ends: 17
[2024-10-14 02:01:32,584 INFO  L226             Difference]: Without dead ends: 0
[2024-10-14 02:01:32,584 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-10-14 02:01:32,586 INFO  L432           NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-14 02:01:32,586 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 30 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-14 02:01:32,587 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-10-14 02:01:32,587 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-10-14 02:01:32,587 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)
[2024-10-14 02:01:32,588 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-10-14 02:01:32,588 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12
[2024-10-14 02:01:32,588 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 02:01:32,588 INFO  L471      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-10-14 02:01:32,588 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-10-14 02:01:32,589 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-10-14 02:01:32,589 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-10-14 02:01:32,592 INFO  L782   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-14 02:01:32,592 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-14 02:01:32,595 INFO  L407         BasicCegarLoop]: Path program histogram: [1, 1]
[2024-10-14 02:01:32,598 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-10-14 02:01:32,642 INFO  L165   ceAbstractionStarter]: Computing trace abstraction results
[2024-10-14 02:01:32,662 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 02:01:32 BoogieIcfgContainer
[2024-10-14 02:01:32,662 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-10-14 02:01:32,663 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-10-14 02:01:32,663 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-10-14 02:01:32,663 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-10-14 02:01:32,664 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 02:01:31" (3/4) ...
[2024-10-14 02:01:32,665 INFO  L139         WitnessPrinter]: Generating witness for correct program
[2024-10-14 02:01:32,669 INFO  L361     RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2024-10-14 02:01:32,672 INFO  L904   BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges
[2024-10-14 02:01:32,672 INFO  L904   BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges
[2024-10-14 02:01:32,672 INFO  L904   BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-10-14 02:01:32,672 INFO  L904   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-10-14 02:01:32,753 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml
[2024-10-14 02:01:32,753 INFO  L149         WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml
[2024-10-14 02:01:32,754 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-10-14 02:01:32,756 INFO  L158              Benchmark]: Toolchain (without parser) took 1554.53ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 63.4MB in the end (delta: 34.4MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB.
[2024-10-14 02:01:32,757 INFO  L158              Benchmark]: CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-10-14 02:01:32,757 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 241.29ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 85.2MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-10-14 02:01:32,761 INFO  L158              Benchmark]: Boogie Procedure Inliner took 28.75ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 83.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-10-14 02:01:32,761 INFO  L158              Benchmark]: Boogie Preprocessor took 36.95ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 82.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-10-14 02:01:32,761 INFO  L158              Benchmark]: RCFGBuilder took 316.37ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 108.7MB in the end (delta: -26.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-10-14 02:01:32,762 INFO  L158              Benchmark]: TraceAbstraction took 834.44ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 67.6MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
[2024-10-14 02:01:32,762 INFO  L158              Benchmark]: Witness Printer took 90.81ms. Allocated memory is still 142.6MB. Free memory was 67.6MB in the beginning and 63.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-10-14 02:01:32,764 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.20ms. Allocated memory is still 100.7MB. Free memory is still 68.4MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 241.29ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 85.2MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 28.75ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 83.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 36.95ms. Allocated memory is still 142.6MB. Free memory was 83.8MB in the beginning and 82.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 316.37ms. Allocated memory is still 142.6MB. Free memory was 82.4MB in the beginning and 108.7MB in the end (delta: -26.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 834.44ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 67.6MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB.
 * Witness Printer took 90.81ms. Allocated memory is still 142.6MB. Free memory was 67.6MB in the beginning and 63.4MB 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: 19]: 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 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 21 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=1, InterpolantAutomatonStates: 10, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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
  - InvariantResult [Line: 27]: Loop Invariant
    Derived loop invariant: (0 < ((long long) i + 1))
  - InvariantResult [Line: 28]: Loop Invariant
    Derived loop invariant: ((0 <= i) && (((long long) i + 1) <= nlen))
  - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert
    Derived contract for procedure __VERIFIER_assert. Requires: (cond != 0) Ensures: (cond != 0)
RESULT: Ultimate proved your program to be correct!
[2024-10-14 02:01:32,795 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