./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_52_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_52_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 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-4a390ef-m
[2024-10-24 22:37:58,953 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-10-24 22:37:59,107 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf
[2024-10-24 22:37:59,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-10-24 22:37:59,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-24 22:37:59,158 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-24 22:37:59,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-24 22:37:59,162 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-24 22:37:59,163 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-24 22:37:59,163 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-10-24 22:37:59,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-24 22:37:59,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-24 22:37:59,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-24 22:37:59,164 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-10-24 22:37:59,164 INFO L153 SettingsManager]: * Use SBE=true
[2024-10-24 22:37:59,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-24 22:37:59,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-10-24 22:37:59,171 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-10-24 22:37:59,172 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-10-24 22:37:59,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-10-24 22:37:59,172 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-24 22:37:59,172 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-10-24 22:37:59,173 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-10-24 22:37:59,173 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-10-24 22:37:59,173 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-10-24 22:37:59,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-10-24 22:37:59,173 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-10-24 22:37:59,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-24 22:37:59,174 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-10-24 22:37:59,174 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-10-24 22:37:59,174 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-10-24 22:37:59,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-24 22:37:59,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-24 22:37:59,175 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-10-24 22:37:59,175 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-24 22:37:59,175 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-10-24 22:37:59,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-24 22:37:59,176 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-24 22:37:59,176 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-24 22:37:59,176 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-10-24 22:37:59,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-24 22:37:59,183 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a
[2024-10-24 22:37:59,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-24 22:37:59,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-24 22:37:59,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-24 22:37:59,615 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-10-24 22:37:59,619 INFO L274 PluginConnector]: CDTParser initialized
[2024-10-24 22:37:59,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i
[2024-10-24 22:38:01,316 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-10-24 22:38:01,565 INFO L384 CDTParser]: Found 1 translation units.
[2024-10-24 22:38:01,566 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i
[2024-10-24 22:38:01,590 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45fb03c09/3febf64b60c14b12881e03d79b700df9/FLAG79c20212d
[2024-10-24 22:38:01,605 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45fb03c09/3febf64b60c14b12881e03d79b700df9
[2024-10-24 22:38:01,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-24 22:38:01,608 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-24 22:38:01,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-24 22:38:01,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-24 22:38:01,615 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-24 22:38:01,615 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:38:01" (1/1) ...
[2024-10-24 22:38:01,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f197b1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:01, skipping insertion in model container
[2024-10-24 22:38:01,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:38:01" (1/1) ...
[2024-10-24 22:38:01,688 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-10-24 22:38:02,275 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-10-24 22:38:02,282 INFO L200 MainTranslator]: Completed pre-run
[2024-10-24 22:38:02,341 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-10-24 22:38:02,438 INFO L204 MainTranslator]: Completed translation
[2024-10-24 22:38:02,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02 WrapperNode
[2024-10-24 22:38:02,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-24 22:38:02,440 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-24 22:38:02,440 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-24 22:38:02,440 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-24 22:38:02,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (1/1) ...
[2024-10-24 22:38:02,474 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (1/1) ...
[2024-10-24 22:38:02,501 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 56
[2024-10-24 22:38:02,502 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-24 22:38:02,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-24 22:38:02,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-24 22:38:02,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-10-24 22:38:02,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (1/1) ...
[2024-10-24 22:38:02,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (1/1) ...
[2024-10-24 22:38:02,516 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (1/1) ...
[2024-10-24 22:38:02,537 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0].
[2024-10-24 22:38:02,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (1/1) ...
[2024-10-24 22:38:02,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (1/1) ...
[2024-10-24 22:38:02,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (1/1) ...
[2024-10-24 22:38:02,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (1/1) ...
[2024-10-24 22:38:02,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (1/1) ...
[2024-10-24 22:38:02,545 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (1/1) ...
[2024-10-24 22:38:02,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-24 22:38:02,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-24 22:38:02,547 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-10-24 22:38:02,547 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-10-24 22:38:02,549 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (1/1) ...
[2024-10-24 22:38:02,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-24 22:38:02,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-24 22:38:02,577 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 22:38:02,582 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 22:38:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-10-24 22:38:02,618 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-10-24 22:38:02,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-24 22:38:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-24 22:38:02,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-24 22:38:02,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-24 22:38:02,737 INFO L238 CfgBuilder]: Building ICFG
[2024-10-24 22:38:02,740 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-24 22:38:02,869 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live.
[2024-10-24 22:38:02,869 INFO L287 CfgBuilder]: Performing block encoding
[2024-10-24 22:38:02,897 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-24 22:38:02,897 INFO L314 CfgBuilder]: Removed 0 assume(true) statements.
[2024-10-24 22:38:02,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:38:02 BoogieIcfgContainer
[2024-10-24 22:38:02,898 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-24 22:38:02,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-24 22:38:02,900 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-10-24 22:38:02,903 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-10-24 22:38:02,904 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:38:01" (1/3) ...
[2024-10-24 22:38:02,904 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494d4b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:38:02, skipping insertion in model container
[2024-10-24 22:38:02,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:02" (2/3) ...
[2024-10-24 22:38:02,905 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494d4b18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:38:02, skipping insertion in model container
[2024-10-24 22:38:02,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:38:02" (3/3) ...
[2024-10-24 22:38:02,906 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_52_bad.i
[2024-10-24 22:38:02,921 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-24 22:38:02,922 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-10-24 22:38:02,973 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-24 22:38:02,980 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;@5659188a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-24 22:38:02,980 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-10-24 22:38:02,987 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 22:38:02,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-10-24 22:38:02,994 INFO L207 NwaCegarLoop]: Found error trace
[2024-10-24 22:38:02,994 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-24 22:38:02,996 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-10-24 22:38:03,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 22:38:03,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1314170303, now seen corresponding path program 1 times
[2024-10-24 22:38:03,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 22:38:03,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756446850]
[2024-10-24 22:38:03,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 22:38:03,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 22:38:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-24 22:38:03,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-24 22:38:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-24 22:38:03,208 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2024-10-24 22:38:03,209 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-10-24 22:38:03,210 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-10-24 22:38:03,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-10-24 22:38:03,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-24 22:38:03,216 INFO L407 BasicCegarLoop]: Path program histogram: [1]
[2024-10-24 22:38:03,233 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-10-24 22:38:03,235 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:38:03 BoogieIcfgContainer
[2024-10-24 22:38:03,236 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-10-24 22:38:03,236 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-10-24 22:38:03,236 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-10-24 22:38:03,237 INFO L274 PluginConnector]: Witness Printer initialized
[2024-10-24 22:38:03,237 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:38:02" (3/4) ...
[2024-10-24 22:38:03,239 INFO L142 WitnessPrinter]: No result that supports witness generation found
[2024-10-24 22:38:03,240 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-10-24 22:38:03,241 INFO L158 Benchmark]: Toolchain (without parser) took 1632.36ms. Allocated memory was 167.8MB in the beginning and 266.3MB in the end (delta: 98.6MB). Free memory was 91.8MB in the beginning and 141.2MB in the end (delta: -49.4MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB.
[2024-10-24 22:38:03,241 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 167.8MB. Free memory is still 120.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-10-24 22:38:03,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 828.95ms. Allocated memory was 167.8MB in the beginning and 266.3MB in the end (delta: 98.6MB). Free memory was 91.5MB in the beginning and 180.0MB in the end (delta: -88.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB.
[2024-10-24 22:38:03,242 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.79ms. Allocated memory is still 266.3MB. Free memory was 180.0MB in the beginning and 176.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-10-24 22:38:03,271 INFO L158 Benchmark]: Boogie Preprocessor took 44.37ms. Allocated memory is still 266.3MB. Free memory was 176.9MB in the beginning and 174.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-10-24 22:38:03,271 INFO L158 Benchmark]: RCFGBuilder took 351.02ms. Allocated memory is still 266.3MB. Free memory was 174.8MB in the beginning and 159.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-10-24 22:38:03,272 INFO L158 Benchmark]: TraceAbstraction took 335.70ms. Allocated memory is still 266.3MB. Free memory was 158.0MB in the beginning and 141.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-10-24 22:38:03,272 INFO L158 Benchmark]: Witness Printer took 3.76ms. Allocated memory is still 266.3MB. Free memory was 141.6MB in the beginning and 141.2MB in the end (delta: 417.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-10-24 22:38:03,276 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.10ms. Allocated memory is still 167.8MB. Free memory is still 120.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 828.95ms. Allocated memory was 167.8MB in the beginning and 266.3MB in the end (delta: 98.6MB). Free memory was 91.5MB in the beginning and 180.0MB in the end (delta: -88.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 61.79ms. Allocated memory is still 266.3MB. Free memory was 180.0MB in the beginning and 176.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 44.37ms. Allocated memory is still 266.3MB. Free memory was 176.9MB in the beginning and 174.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 351.02ms. Allocated memory is still 266.3MB. Free memory was 174.8MB in the beginning and 159.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 335.70ms. Allocated memory is still 266.3MB. Free memory was 158.0MB in the beginning and 141.6MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Witness Printer took 3.76ms. Allocated memory is still 266.3MB. Free memory was 141.6MB in the beginning and 141.2MB in the end (delta: 417.4kB). 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: 1582]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555.
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);
[L1569] 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)
[L1569] 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]
[L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_52_bad()
[L1551] int data;
[L1552] data = 0
[L1554] 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]
[L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1557] data = atoi(inputBuffer)
[L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_52b_badSink(data)
[L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_52c_badSink(data)
[L1582] 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: 1582]: 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, 0.0s 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 22:38:03,315 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
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_52_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 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-4a390ef-m
[2024-10-24 22:38:05,359 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-10-24 22:38:05,420 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf
[2024-10-24 22:38:05,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-10-24 22:38:05,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-24 22:38:05,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty.
[2024-10-24 22:38:05,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-24 22:38:05,459 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-24 22:38:05,460 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-24 22:38:05,460 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-24 22:38:05,462 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-10-24 22:38:05,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-24 22:38:05,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-24 22:38:05,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-24 22:38:05,464 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-10-24 22:38:05,464 INFO L153 SettingsManager]: * Use SBE=true
[2024-10-24 22:38:05,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-24 22:38:05,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-10-24 22:38:05,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-10-24 22:38:05,465 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-10-24 22:38:05,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-24 22:38:05,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-10-24 22:38:05,468 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-10-24 22:38:05,468 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-10-24 22:38:05,468 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-10-24 22:38:05,468 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME
[2024-10-24 22:38:05,470 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-10-24 22:38:05,470 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-10-24 22:38:05,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-10-24 22:38:05,471 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-10-24 22:38:05,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-24 22:38:05,471 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-10-24 22:38:05,471 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-10-24 22:38:05,472 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-10-24 22:38:05,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-24 22:38:05,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-24 22:38:05,479 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-10-24 22:38:05,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-24 22:38:05,480 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2024-10-24 22:38:05,480 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-10-24 22:38:05,480 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-24 22:38:05,480 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-24 22:38:05,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-10-24 22:38:05,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-24 22:38:05,481 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2024-10-24 22:38:05,481 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a
[2024-10-24 22:38:05,752 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-24 22:38:05,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-24 22:38:05,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-24 22:38:05,777 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-10-24 22:38:05,778 INFO L274 PluginConnector]: CDTParser initialized
[2024-10-24 22:38:05,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i
[2024-10-24 22:38:07,132 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-10-24 22:38:07,368 INFO L384 CDTParser]: Found 1 translation units.
[2024-10-24 22:38:07,368 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i
[2024-10-24 22:38:07,393 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab42de0d/3e1abe9c15384b6684aa3732ac76641d/FLAG21638eb7d
[2024-10-24 22:38:07,683 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab42de0d/3e1abe9c15384b6684aa3732ac76641d
[2024-10-24 22:38:07,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-24 22:38:07,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-24 22:38:07,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-24 22:38:07,687 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-24 22:38:07,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-24 22:38:07,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:38:07" (1/1) ...
[2024-10-24 22:38:07,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0de05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:07, skipping insertion in model container
[2024-10-24 22:38:07,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:38:07" (1/1) ...
[2024-10-24 22:38:07,764 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-10-24 22:38:08,372 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-10-24 22:38:08,383 INFO L200 MainTranslator]: Completed pre-run
[2024-10-24 22:38:08,468 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-10-24 22:38:08,559 INFO L204 MainTranslator]: Completed translation
[2024-10-24 22:38:08,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08 WrapperNode
[2024-10-24 22:38:08,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-24 22:38:08,561 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-24 22:38:08,561 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-24 22:38:08,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-24 22:38:08,566 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ...
[2024-10-24 22:38:08,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ...
[2024-10-24 22:38:08,650 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 55
[2024-10-24 22:38:08,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-24 22:38:08,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-24 22:38:08,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-24 22:38:08,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-10-24 22:38:08,661 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ...
[2024-10-24 22:38:08,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ...
[2024-10-24 22:38:08,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ...
[2024-10-24 22:38:08,681 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0].
[2024-10-24 22:38:08,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ...
[2024-10-24 22:38:08,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ...
[2024-10-24 22:38:08,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ...
[2024-10-24 22:38:08,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ...
[2024-10-24 22:38:08,688 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ...
[2024-10-24 22:38:08,689 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ...
[2024-10-24 22:38:08,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-24 22:38:08,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-24 22:38:08,694 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-10-24 22:38:08,695 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-10-24 22:38:08,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (1/1) ...
[2024-10-24 22:38:08,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-24 22:38:08,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-24 22:38:08,728 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 22:38:08,739 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 22:38:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure printLine
[2024-10-24 22:38:08,772 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine
[2024-10-24 22:38:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-10-24 22:38:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-24 22:38:08,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-24 22:38:08,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-24 22:38:08,890 INFO L238 CfgBuilder]: Building ICFG
[2024-10-24 22:38:08,892 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-24 22:38:08,987 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live.
[2024-10-24 22:38:08,987 INFO L287 CfgBuilder]: Performing block encoding
[2024-10-24 22:38:09,034 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-24 22:38:09,035 INFO L314 CfgBuilder]: Removed 0 assume(true) statements.
[2024-10-24 22:38:09,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:38:09 BoogieIcfgContainer
[2024-10-24 22:38:09,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-24 22:38:09,036 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-24 22:38:09,036 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-10-24 22:38:09,040 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-10-24 22:38:09,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:38:07" (1/3) ...
[2024-10-24 22:38:09,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efec721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:38:09, skipping insertion in model container
[2024-10-24 22:38:09,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:38:08" (2/3) ...
[2024-10-24 22:38:09,041 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efec721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:38:09, skipping insertion in model container
[2024-10-24 22:38:09,041 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:38:09" (3/3) ...
[2024-10-24 22:38:09,042 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_52_bad.i
[2024-10-24 22:38:09,054 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-24 22:38:09,054 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations.
[2024-10-24 22:38:09,097 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-24 22:38:09,102 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;@7ae94193, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-24 22:38:09,103 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2024-10-24 22:38:09,106 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 22:38:09,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-10-24 22:38:09,112 INFO L207 NwaCegarLoop]: Found error trace
[2024-10-24 22:38:09,112 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-24 22:38:09,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] ===
[2024-10-24 22:38:09,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 22:38:09,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1314170303, now seen corresponding path program 1 times
[2024-10-24 22:38:09,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2024-10-24 22:38:09,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460753953]
[2024-10-24 22:38:09,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 22:38:09,148 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 22:38:09,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2024-10-24 22:38:09,155 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 22:38:09,157 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 22:38:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-24 22:38:09,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2024-10-24 22:38:09,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2024-10-24 22:38:09,300 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2024-10-24 22:38:09,302 INFO L325 BasicCegarLoop]: Counterexample is feasible
[2024-10-24 22:38:09,303 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining)
[2024-10-24 22:38:09,305 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining)
[2024-10-24 22:38:09,312 INFO L552 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)] Ended with exit code 0
[2024-10-24 22:38:09,506 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 22:38:09,511 INFO L407 BasicCegarLoop]: Path program histogram: [1]
[2024-10-24 22:38:09,529 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-10-24 22:38:09,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:38:09 BoogieIcfgContainer
[2024-10-24 22:38:09,531 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-10-24 22:38:09,532 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-10-24 22:38:09,532 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-10-24 22:38:09,532 INFO L274 PluginConnector]: Witness Printer initialized
[2024-10-24 22:38:09,533 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:38:09" (3/4) ...
[2024-10-24 22:38:09,535 INFO L142 WitnessPrinter]: No result that supports witness generation found
[2024-10-24 22:38:09,535 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-10-24 22:38:09,537 INFO L158 Benchmark]: Toolchain (without parser) took 1849.79ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 35.4MB in the beginning and 54.8MB in the end (delta: -19.4MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB.
[2024-10-24 22:38:09,537 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 54.5MB. Free memory is still 29.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-10-24 22:38:09,538 INFO L158 Benchmark]: CACSL2BoogieTranslator took 873.24ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 35.1MB in the beginning and 42.4MB in the end (delta: -7.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-10-24 22:38:09,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.71ms. Allocated memory is still 94.4MB. Free memory was 42.4MB in the beginning and 64.3MB in the end (delta: -21.9MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB.
[2024-10-24 22:38:09,538 INFO L158 Benchmark]: Boogie Preprocessor took 40.67ms. Allocated memory is still 94.4MB. Free memory was 64.3MB in the beginning and 61.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-10-24 22:38:09,539 INFO L158 Benchmark]: RCFGBuilder took 340.63ms. Allocated memory is still 94.4MB. Free memory was 61.1MB in the beginning and 44.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-10-24 22:38:09,539 INFO L158 Benchmark]: TraceAbstraction took 495.04ms. Allocated memory is still 94.4MB. Free memory was 43.8MB in the beginning and 54.8MB in the end (delta: -11.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-10-24 22:38:09,539 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 94.4MB. Free memory is still 54.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-10-24 22:38:09,542 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.65ms. Allocated memory is still 54.5MB. Free memory is still 29.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 873.24ms. Allocated memory was 69.2MB in the beginning and 94.4MB in the end (delta: 25.2MB). Free memory was 35.1MB in the beginning and 42.4MB in the end (delta: -7.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 91.71ms. Allocated memory is still 94.4MB. Free memory was 42.4MB in the beginning and 64.3MB in the end (delta: -21.9MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 40.67ms. Allocated memory is still 94.4MB. Free memory was 64.3MB in the beginning and 61.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* RCFGBuilder took 340.63ms. Allocated memory is still 94.4MB. Free memory was 61.1MB in the beginning and 44.3MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* TraceAbstraction took 495.04ms. Allocated memory is still 94.4MB. Free memory was 43.8MB in the beginning and 54.8MB in the end (delta: -11.0MB). There was no memory consumed. Max. memory is 16.1GB.
* Witness Printer took 4.04ms. Allocated memory is still 94.4MB. Free memory is still 54.8MB. 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: 1582]: Unable to prove that integer overflow can never occur
Unable to prove that integer overflow can never occur
Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555.
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);
[L1569] 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)
[L1569] 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]
[L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_52_bad()
[L1551] int data;
[L1552] data = 0
[L1554] 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]
[L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)
[L1557] data = atoi(inputBuffer)
[L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_52b_badSink(data)
[L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_52c_badSink(data)
[L1582] 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: 1582]: 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 22:38:09,565 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