./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i --full-output --architecture 64bit


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


Checking for overflows
Using default analysis
Version 4a390ef5
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/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 ! overflow) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e2a4e9f9fc01d060749b8ad4c191b239f41faf5c0f32522d7cc15915f576da31
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-4a390ef-m
[2024-10-24 22:37:48,558 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-24 22:37:48,635 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-10-24 22:37:48,642 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-24 22:37:48,643 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-24 22:37:48,664 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-24 22:37:48,666 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-24 22:37:48,666 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-24 22:37:48,666 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-24 22:37:48,668 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-24 22:37:48,668 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-24 22:37:48,668 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-24 22:37:48,669 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-24 22:37:48,669 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-24 22:37:48,669 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-24 22:37:48,669 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-24 22:37:48,670 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-24 22:37:48,670 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-24 22:37:48,670 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-24 22:37:48,671 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-24 22:37:48,671 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-24 22:37:48,671 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-24 22:37:48,672 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-24 22:37:48,672 INFO  L153        SettingsManager]:  * Check absence of signed integer overflows=ASSERTandASSUME
[2024-10-24 22:37:48,672 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2024-10-24 22:37:48,672 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-24 22:37:48,672 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-24 22:37:48,673 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-24 22:37:48,673 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-24 22:37:48,673 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-24 22:37:48,673 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-24 22:37:48,674 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-24 22:37:48,674 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-24 22:37:48,674 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-24 22:37:48,674 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-24 22:37:48,675 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-24 22:37:48,675 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-24 22:37:48,675 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-24 22:37:48,675 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-24 22:37:48,675 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-24 22:37:48,675 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-24 22:37:48,676 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 ! overflow) )


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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2a4e9f9fc01d060749b8ad4c191b239f41faf5c0f32522d7cc15915f576da31
[2024-10-24 22:37:48,896 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-24 22:37:48,920 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-24 22:37:48,924 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-24 22:37:48,925 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-24 22:37:48,925 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-24 22:37:48,927 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i
[2024-10-24 22:37:50,412 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-24 22:37:50,878 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-24 22:37:50,883 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i
[2024-10-24 22:37:50,922 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3eec0ef9/8d4e671756d5459792d86d9477804370/FLAGc5b7a681f
[2024-10-24 22:37:51,013 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3eec0ef9/8d4e671756d5459792d86d9477804370
[2024-10-24 22:37:51,019 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-24 22:37:51,020 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-24 22:37:51,029 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-24 22:37:51,029 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-24 22:37:51,039 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-24 22:37:51,040 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:37:51" (1/1) ...
[2024-10-24 22:37:51,042 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78b453b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:51, skipping insertion in model container
[2024-10-24 22:37:51,042 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:37:51" (1/1) ...
[2024-10-24 22:37:51,131 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-24 22:37:52,427 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-24 22:37:52,441 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-24 22:37:52,558 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-24 22:37:52,643 INFO  L204         MainTranslator]: Completed translation
[2024-10-24 22:37:52,643 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52 WrapperNode
[2024-10-24 22:37:52,643 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-24 22:37:52,644 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-24 22:37:52,644 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-24 22:37:52,644 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-24 22:37:52,650 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (1/1) ...
[2024-10-24 22:37:52,676 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (1/1) ...
[2024-10-24 22:37:52,701 INFO  L138                Inliner]: procedures = 498, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60
[2024-10-24 22:37:52,702 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-24 22:37:52,703 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-24 22:37:52,703 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-24 22:37:52,703 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-24 22:37:52,713 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (1/1) ...
[2024-10-24 22:37:52,713 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (1/1) ...
[2024-10-24 22:37:52,717 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (1/1) ...
[2024-10-24 22:37:52,736 INFO  L175           MemorySlicer]: Split 3 memory accesses to 2 slices as follows [1, 2]. 67 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 1 writes are split as follows [0, 1].
[2024-10-24 22:37:52,736 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (1/1) ...
[2024-10-24 22:37:52,736 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (1/1) ...
[2024-10-24 22:37:52,742 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (1/1) ...
[2024-10-24 22:37:52,743 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (1/1) ...
[2024-10-24 22:37:52,744 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (1/1) ...
[2024-10-24 22:37:52,745 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (1/1) ...
[2024-10-24 22:37:52,746 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-24 22:37:52,747 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-24 22:37:52,747 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-24 22:37:52,747 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-24 22:37:52,748 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (1/1) ...
[2024-10-24 22:37:52,752 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-24 22:37:52,760 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-24 22:37:52,772 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)
[2024-10-24 22:37:52,774 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
[2024-10-24 22:37:52,809 INFO  L130     BoogieDeclarations]: Found specification of procedure printLine
[2024-10-24 22:37:52,810 INFO  L138     BoogieDeclarations]: Found implementation of procedure printLine
[2024-10-24 22:37:52,810 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-10-24 22:37:52,810 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2024-10-24 22:37:52,810 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2024-10-24 22:37:52,810 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-24 22:37:52,810 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-24 22:37:52,810 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-24 22:37:52,810 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-10-24 22:37:52,811 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2024-10-24 22:37:52,811 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2024-10-24 22:37:52,811 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-24 22:37:52,811 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-10-24 22:37:52,927 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-24 22:37:52,929 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-24 22:37:53,021 INFO  L?                        ?]: Removed 22 outVars from TransFormulas that were not future-live.
[2024-10-24 22:37:53,021 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-24 22:37:53,045 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-24 22:37:53,045 INFO  L314             CfgBuilder]: Removed 0 assume(true) statements.
[2024-10-24 22:37:53,046 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:37:53 BoogieIcfgContainer
[2024-10-24 22:37:53,046 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-24 22:37:53,047 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-24 22:37:53,047 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-24 22:37:53,050 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-24 22:37:53,050 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:37:51" (1/3) ...
[2024-10-24 22:37:53,050 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7306b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:37:53, skipping insertion in model container
[2024-10-24 22:37:53,051 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:52" (2/3) ...
[2024-10-24 22:37:53,051 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d7306b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:37:53, skipping insertion in model container
[2024-10-24 22:37:53,051 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:37:53" (3/3) ...
[2024-10-24 22:37:53,052 INFO  L112   eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_34_bad.i
[2024-10-24 22:37:53,065 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-24 22:37:53,065 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-10-24 22:37:53,106 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-24 22:37:53,112 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;@1490cffb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-24 22:37:53,112 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-10-24 22:37:53,119 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-10-24 22:37:53,124 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-10-24 22:37:53,124 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 22:37:53,125 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-24 22:37:53,125 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-10-24 22:37:53,129 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 22:37:53,129 INFO  L85        PathProgramCache]: Analyzing trace with hash -1891927107, now seen corresponding path program 1 times
[2024-10-24 22:37:53,136 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 22:37:53,136 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55536392]
[2024-10-24 22:37:53,136 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 22:37:53,137 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 22:37:53,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-24 22:37:53,266 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-24 22:37:53,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-24 22:37:53,378 INFO  L130   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-10-24 22:37:53,380 INFO  L325         BasicCegarLoop]: Counterexample is feasible
[2024-10-24 22:37:53,381 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-10-24 22:37:53,383 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-10-24 22:37:53,383 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-24 22:37:53,389 INFO  L407         BasicCegarLoop]: Path program histogram: [1]
[2024-10-24 22:37:53,423 INFO  L165   ceAbstractionStarter]: Computing trace abstraction results
[2024-10-24 22:37:53,425 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:37:53 BoogieIcfgContainer
[2024-10-24 22:37:53,425 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-10-24 22:37:53,426 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-10-24 22:37:53,426 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-10-24 22:37:53,426 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-10-24 22:37:53,426 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:37:53" (3/4) ...
[2024-10-24 22:37:53,428 INFO  L142         WitnessPrinter]: No result that supports witness generation found
[2024-10-24 22:37:53,429 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-10-24 22:37:53,430 INFO  L158              Benchmark]: Toolchain (without parser) took 2409.92ms. Allocated memory is still 186.6MB. Free memory was 114.1MB in the beginning and 149.9MB in the end (delta: -35.8MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-10-24 22:37:53,432 INFO  L158              Benchmark]: CDTParser took 0.17ms. Allocated memory is still 186.6MB. Free memory is still 146.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-10-24 22:37:53,432 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 1614.83ms. Allocated memory is still 186.6MB. Free memory was 113.9MB in the beginning and 117.2MB in the end (delta: -3.3MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB.
[2024-10-24 22:37:53,433 INFO  L158              Benchmark]: Boogie Procedure Inliner took 58.16ms. Allocated memory is still 186.6MB. Free memory was 117.2MB in the beginning and 114.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-10-24 22:37:53,433 INFO  L158              Benchmark]: Boogie Preprocessor took 43.61ms. Allocated memory is still 186.6MB. Free memory was 114.2MB in the beginning and 112.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-10-24 22:37:53,433 INFO  L158              Benchmark]: RCFGBuilder took 299.09ms. Allocated memory is still 186.6MB. Free memory was 112.2MB in the beginning and 96.4MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-10-24 22:37:53,434 INFO  L158              Benchmark]: TraceAbstraction took 378.09ms. Allocated memory is still 186.6MB. Free memory was 95.4MB in the beginning and 149.9MB in the end (delta: -54.5MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB.
[2024-10-24 22:37:53,436 INFO  L158              Benchmark]: Witness Printer took 3.25ms. Allocated memory is still 186.6MB. Free memory is still 149.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-10-24 22:37:53,444 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.17ms. Allocated memory is still 186.6MB. Free memory is still 146.2MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 1614.83ms. Allocated memory is still 186.6MB. Free memory was 113.9MB in the beginning and 117.2MB in the end (delta: -3.3MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 58.16ms. Allocated memory is still 186.6MB. Free memory was 117.2MB in the beginning and 114.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 43.61ms. Allocated memory is still 186.6MB. Free memory was 114.2MB in the beginning and 112.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 299.09ms. Allocated memory is still 186.6MB. Free memory was 112.2MB in the beginning and 96.4MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
 * TraceAbstraction took 378.09ms. Allocated memory is still 186.6MB. Free memory was 95.4MB in the beginning and 149.9MB in the end (delta: -54.5MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB.
 * Witness Printer took 3.25ms. Allocated memory is still 186.6MB. Free memory is still 149.9MB. There was no memory consumed. 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
  - UnprovableResult [Line: 1573]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: overapproximation of atoi at line 1562, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1560. 
Possible FailurePath: 
[L1522]             const int GLOBAL_CONST_TRUE = 1;
[L1523]             const int GLOBAL_CONST_FALSE = 0;
[L1524]             const int GLOBAL_CONST_FIVE = 5;
[L1525]             int globalTrue = 1;
[L1526]             int globalFalse = 0;
[L1527]             int globalFive = 5;
[L1546]             int globalArgc = 0;
[L1547]             char** globalArgv = ((void *)0);
[L1581]  CALL       printLine("Calling bad()...")
         VAL        [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414]  COND TRUE  line != ((void *)0)
[L1581]  RET        printLine("Calling bad()...")
         VAL        [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1582]  CALL       CWE191_Integer_Underflow__int_fgets_sub_34_bad()
[L1555]             int data;
[L1556]             CWE191_Integer_Underflow__int_fgets_sub_34_unionType myUnion;
[L1557]             data = 0
[L1559]             char inputBuffer[(3 * sizeof(data) + 2)] = "";
         VAL        [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={5:0}]
[L1560]  COND TRUE  fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1562]             data = atoi(inputBuffer)
[L1569]             myUnion.unionFirst = data
[L1571]  EXPR       myUnion.unionSecond
[L1571]             int data = myUnion.unionSecond;
[L1573]             data - 1
         VAL        [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]

  - UnprovableResult [Line: 1573]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=18occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 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 could not prove your program: unable to determine feasibility of some traces
[2024-10-24 22:37:53,470 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis

### Bit-precise run ###
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/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.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 ! overflow) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e2a4e9f9fc01d060749b8ad4c191b239f41faf5c0f32522d7cc15915f576da31
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-4a390ef-m
[2024-10-24 22:37:55,454 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-24 22:37:55,504 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2024-10-24 22:37:55,511 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-24 22:37:55,512 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-24 22:37:55,512 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2024-10-24 22:37:55,551 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-24 22:37:55,558 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-24 22:37:55,558 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-24 22:37:55,558 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-24 22:37:55,559 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-24 22:37:55,559 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-24 22:37:55,559 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-24 22:37:55,560 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-24 22:37:55,560 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-24 22:37:55,563 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-24 22:37:55,564 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-24 22:37:55,564 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-24 22:37:55,564 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-24 22:37:55,564 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-24 22:37:55,564 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-24 22:37:55,565 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-24 22:37:55,565 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-10-24 22:37:55,565 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-10-24 22:37:55,569 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-24 22:37:55,569 INFO  L153        SettingsManager]:  * Check absence of signed integer overflows=ASSERTandASSUME
[2024-10-24 22:37:55,570 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-10-24 22:37:55,570 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2024-10-24 22:37:55,570 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-24 22:37:55,570 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-24 22:37:55,570 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-24 22:37:55,571 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-24 22:37:55,571 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-24 22:37:55,571 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-24 22:37:55,571 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-24 22:37:55,571 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-24 22:37:55,571 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-24 22:37:55,572 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-24 22:37:55,572 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-10-24 22:37:55,572 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2024-10-24 22:37:55,572 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-24 22:37:55,576 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-24 22:37:55,576 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-24 22:37:55,576 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-24 22:37:55,577 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2024-10-24 22:37:55,577 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 ! overflow) )


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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2a4e9f9fc01d060749b8ad4c191b239f41faf5c0f32522d7cc15915f576da31
[2024-10-24 22:37:55,912 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-24 22:37:55,932 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-24 22:37:55,934 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-24 22:37:55,936 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-24 22:37:55,936 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-24 22:37:55,938 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i
[2024-10-24 22:37:57,452 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-24 22:37:57,744 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-24 22:37:57,744 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_34_bad.i
[2024-10-24 22:37:57,761 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db162d3a9/e73e108819e146e6bad1a08d1495f4e1/FLAGfc40ccc1b
[2024-10-24 22:37:57,775 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db162d3a9/e73e108819e146e6bad1a08d1495f4e1
[2024-10-24 22:37:57,777 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-24 22:37:57,778 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-24 22:37:57,780 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-24 22:37:57,781 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-24 22:37:57,784 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-24 22:37:57,785 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:37:57" (1/1) ...
[2024-10-24 22:37:57,786 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43bce242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:57, skipping insertion in model container
[2024-10-24 22:37:57,786 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:37:57" (1/1) ...
[2024-10-24 22:37:57,833 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-24 22:37:58,408 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-24 22:37:58,418 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-24 22:37:58,507 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-24 22:37:58,650 INFO  L204         MainTranslator]: Completed translation
[2024-10-24 22:37:58,650 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58 WrapperNode
[2024-10-24 22:37:58,650 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-24 22:37:58,652 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-24 22:37:58,652 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-24 22:37:58,652 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-24 22:37:58,657 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (1/1) ...
[2024-10-24 22:37:58,689 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (1/1) ...
[2024-10-24 22:37:58,711 INFO  L138                Inliner]: procedures = 503, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59
[2024-10-24 22:37:58,711 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-24 22:37:58,712 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-24 22:37:58,712 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-24 22:37:58,714 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-24 22:37:58,722 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (1/1) ...
[2024-10-24 22:37:58,723 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (1/1) ...
[2024-10-24 22:37:58,728 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (1/1) ...
[2024-10-24 22:37:58,748 INFO  L175           MemorySlicer]: Split 3 memory accesses to 2 slices as follows [1, 2]. 67 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 1 writes are split as follows [0, 1].
[2024-10-24 22:37:58,751 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (1/1) ...
[2024-10-24 22:37:58,752 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (1/1) ...
[2024-10-24 22:37:58,765 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (1/1) ...
[2024-10-24 22:37:58,767 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (1/1) ...
[2024-10-24 22:37:58,773 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (1/1) ...
[2024-10-24 22:37:58,775 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (1/1) ...
[2024-10-24 22:37:58,780 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-24 22:37:58,780 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-24 22:37:58,781 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-24 22:37:58,781 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-24 22:37:58,781 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (1/1) ...
[2024-10-24 22:37:58,788 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-24 22:37:58,806 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-24 22:37:58,829 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)
[2024-10-24 22:37:58,839 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
[2024-10-24 22:37:58,873 INFO  L130     BoogieDeclarations]: Found specification of procedure printLine
[2024-10-24 22:37:58,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure printLine
[2024-10-24 22:37:58,874 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-10-24 22:37:58,874 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-10-24 22:37:58,874 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-10-24 22:37:58,874 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-24 22:37:58,874 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-24 22:37:58,874 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-24 22:37:58,874 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0
[2024-10-24 22:37:58,875 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1
[2024-10-24 22:37:58,875 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-10-24 22:37:58,875 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0
[2024-10-24 22:37:58,875 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1
[2024-10-24 22:37:59,017 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-24 22:37:59,018 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-24 22:37:59,148 INFO  L?                        ?]: Removed 21 outVars from TransFormulas that were not future-live.
[2024-10-24 22:37:59,149 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-24 22:37:59,192 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-24 22:37:59,192 INFO  L314             CfgBuilder]: Removed 0 assume(true) statements.
[2024-10-24 22:37:59,192 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:37:59 BoogieIcfgContainer
[2024-10-24 22:37:59,193 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-24 22:37:59,215 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-24 22:37:59,215 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-24 22:37:59,219 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-24 22:37:59,219 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:37:57" (1/3) ...
[2024-10-24 22:37:59,220 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27da6470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:37:59, skipping insertion in model container
[2024-10-24 22:37:59,221 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:37:58" (2/3) ...
[2024-10-24 22:37:59,221 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27da6470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:37:59, skipping insertion in model container
[2024-10-24 22:37:59,221 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:37:59" (3/3) ...
[2024-10-24 22:37:59,222 INFO  L112   eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_34_bad.i
[2024-10-24 22:37:59,235 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-24 22:37:59,235 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-10-24 22:37:59,286 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-24 22:37:59,291 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;@77d75df4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-24 22:37:59,291 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-10-24 22:37:59,294 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-10-24 22:37:59,299 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-10-24 22:37:59,300 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 22:37:59,300 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-24 22:37:59,301 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-10-24 22:37:59,305 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 22:37:59,305 INFO  L85        PathProgramCache]: Analyzing trace with hash -1891927107, now seen corresponding path program 1 times
[2024-10-24 22:37:59,315 INFO  L118   FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-10-24 22:37:59,316 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322118060]
[2024-10-24 22:37:59,316 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 22:37:59,318 INFO  L173          SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-10-24 22:37:59,318 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-10-24 22:37:59,321 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2024-10-24 22:37:59,326 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2024-10-24 22:37:59,421 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-24 22:37:59,421 INFO  L356             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-24 22:37:59,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-24 22:37:59,469 INFO  L130   FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2024-10-24 22:37:59,471 INFO  L325         BasicCegarLoop]: Counterexample is feasible
[2024-10-24 22:37:59,472 INFO  L782   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-10-24 22:37:59,473 INFO  L782   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-10-24 22:37:59,482 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2024-10-24 22:37:59,674 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2024-10-24 22:37:59,678 INFO  L407         BasicCegarLoop]: Path program histogram: [1]
[2024-10-24 22:37:59,702 INFO  L165   ceAbstractionStarter]: Computing trace abstraction results
[2024-10-24 22:37:59,705 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:37:59 BoogieIcfgContainer
[2024-10-24 22:37:59,706 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-10-24 22:37:59,707 INFO  L112        PluginConnector]: ------------------------Witness Printer----------------------------
[2024-10-24 22:37:59,707 INFO  L270        PluginConnector]: Initializing Witness Printer...
[2024-10-24 22:37:59,707 INFO  L274        PluginConnector]: Witness Printer initialized
[2024-10-24 22:37:59,707 INFO  L184        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:37:59" (3/4) ...
[2024-10-24 22:37:59,710 INFO  L142         WitnessPrinter]: No result that supports witness generation found
[2024-10-24 22:37:59,712 INFO  L131        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-10-24 22:37:59,713 INFO  L158              Benchmark]: Toolchain (without parser) took 1934.06ms. Allocated memory was 94.4MB in the beginning and 138.4MB in the end (delta: 44.0MB). Free memory was 56.3MB in the beginning and 90.3MB in the end (delta: -34.0MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB.
[2024-10-24 22:37:59,713 INFO  L158              Benchmark]: CDTParser took 2.00ms. Allocated memory is still 94.4MB. Free memory is still 76.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-10-24 22:37:59,714 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 870.84ms. Allocated memory was 94.4MB in the beginning and 138.4MB in the end (delta: 44.0MB). Free memory was 56.0MB in the beginning and 89.8MB in the end (delta: -33.7MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB.
[2024-10-24 22:37:59,715 INFO  L158              Benchmark]: Boogie Procedure Inliner took 59.79ms. Allocated memory is still 138.4MB. Free memory was 89.8MB in the beginning and 87.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-10-24 22:37:59,716 INFO  L158              Benchmark]: Boogie Preprocessor took 67.97ms. Allocated memory is still 138.4MB. Free memory was 86.9MB in the beginning and 84.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-10-24 22:37:59,717 INFO  L158              Benchmark]: RCFGBuilder took 413.05ms. Allocated memory is still 138.4MB. Free memory was 83.4MB in the beginning and 66.1MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-10-24 22:37:59,717 INFO  L158              Benchmark]: TraceAbstraction took 491.81ms. Allocated memory is still 138.4MB. Free memory was 108.1MB in the beginning and 90.4MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-10-24 22:37:59,718 INFO  L158              Benchmark]: Witness Printer took 4.98ms. Allocated memory is still 138.4MB. Free memory was 90.4MB in the beginning and 90.3MB in the end (delta: 102.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-10-24 22:37:59,721 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 2.00ms. Allocated memory is still 94.4MB. Free memory is still 76.2MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 870.84ms. Allocated memory was 94.4MB in the beginning and 138.4MB in the end (delta: 44.0MB). Free memory was 56.0MB in the beginning and 89.8MB in the end (delta: -33.7MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 59.79ms. Allocated memory is still 138.4MB. Free memory was 89.8MB in the beginning and 87.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 67.97ms. Allocated memory is still 138.4MB. Free memory was 86.9MB in the beginning and 84.1MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * RCFGBuilder took 413.05ms. Allocated memory is still 138.4MB. Free memory was 83.4MB in the beginning and 66.1MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
 * TraceAbstraction took 491.81ms. Allocated memory is still 138.4MB. Free memory was 108.1MB in the beginning and 90.4MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
 * Witness Printer took 4.98ms. Allocated memory is still 138.4MB. Free memory was 90.4MB in the beginning and 90.3MB in the end (delta: 102.6kB). There was no memory consumed. 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
  - UnprovableResult [Line: 1573]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: overapproximation of atoi at line 1562, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1560. 
Possible FailurePath: 
[L1522]             const int GLOBAL_CONST_TRUE = 1;
[L1523]             const int GLOBAL_CONST_FALSE = 0;
[L1524]             const int GLOBAL_CONST_FIVE = 5;
[L1525]             int globalTrue = 1;
[L1526]             int globalFalse = 0;
[L1527]             int globalFive = 5;
[L1546]             int globalArgc = 0;
[L1547]             char** globalArgv = ((void *)0);
[L1581]  CALL       printLine("Calling bad()...")
         VAL        [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1414]  COND TRUE  line != ((void *)0)
[L1581]  RET        printLine("Calling bad()...")
         VAL        [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]
[L1582]  CALL       CWE191_Integer_Underflow__int_fgets_sub_34_bad()
[L1555]             int data;
[L1556]             CWE191_Integer_Underflow__int_fgets_sub_34_unionType myUnion;
[L1557]             data = 0
[L1559]             char inputBuffer[(3 * sizeof(data) + 2)] = "";
         VAL        [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={5:0}]
[L1560]  COND TRUE  fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1562]             data = atoi(inputBuffer)
[L1569]             myUnion.unionFirst = data
[L1571]  EXPR       myUnion.unionSecond
[L1571]             int data = myUnion.unionSecond;
[L1573]             data - 1
         VAL        [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1]

  - UnprovableResult [Line: 1573]: Unable to prove that integer overflow can never occur
    Unable to prove that integer overflow can never occur
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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=18occurred 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, 10 NumberOfCodeBlocks, 10 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 could not prove your program: unable to determine feasibility of some traces
[2024-10-24 22:37:59,749 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
UNKNOWN: Overapproximated counterexample