./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 96d4963263642f4592b0ca397fa66ff996e958e14ed7b8874d6fd377a760563a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 12:49:28,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 12:49:28,182 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-08 12:49:28,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 12:49:28,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 12:49:28,206 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 12:49:28,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 12:49:28,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 12:49:28,207 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 12:49:28,207 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 12:49:28,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 12:49:28,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 12:49:28,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 12:49:28,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 12:49:28,208 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 12:49:28,208 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 12:49:28,209 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 12:49:28,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 12:49:28,209 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 12:49:28,209 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 12:49:28,209 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 12:49:28,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 12:49:28,209 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 12:49:28,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 12:49:28,209 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 12:49:28,209 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 12:49:28,209 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 12:49:28,209 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 12:49:28,209 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 96d4963263642f4592b0ca397fa66ff996e958e14ed7b8874d6fd377a760563a [2025-02-08 12:49:28,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 12:49:28,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 12:49:28,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 12:49:28,419 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 12:49:28,419 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 12:49:28,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2025-02-08 12:49:29,583 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d6b8f95d4/321af8da26c54773bd159a31dbfdd7e7/FLAGe903a126d [2025-02-08 12:49:29,949 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 12:49:29,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2025-02-08 12:49:29,973 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d6b8f95d4/321af8da26c54773bd159a31dbfdd7e7/FLAGe903a126d [2025-02-08 12:49:30,158 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d6b8f95d4/321af8da26c54773bd159a31dbfdd7e7 [2025-02-08 12:49:30,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 12:49:30,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 12:49:30,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 12:49:30,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 12:49:30,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 12:49:30,169 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f214ec1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30, skipping insertion in model container [2025-02-08 12:49:30,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,204 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 12:49:30,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 12:49:30,684 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 12:49:30,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 12:49:30,836 INFO L204 MainTranslator]: Completed translation [2025-02-08 12:49:30,836 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30 WrapperNode [2025-02-08 12:49:30,836 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 12:49:30,837 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 12:49:30,837 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 12:49:30,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 12:49:30,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,868 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 65 [2025-02-08 12:49:30,868 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 12:49:30,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 12:49:30,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 12:49:30,869 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 12:49:30,875 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,878 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,887 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]. [2025-02-08 12:49:30,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,890 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 12:49:30,895 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 12:49:30,895 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 12:49:30,895 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 12:49:30,896 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (1/1) ... [2025-02-08 12:49:30,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 12:49:30,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 12:49:30,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 12:49:30,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 12:49:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-08 12:49:30,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-08 12:49:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 12:49:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 12:49:30,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 12:49:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 12:49:31,058 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 12:49:31,059 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 12:49:31,150 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2025-02-08 12:49:31,151 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 12:49:31,157 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 12:49:31,157 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 12:49:31,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:49:31 BoogieIcfgContainer [2025-02-08 12:49:31,157 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 12:49:31,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 12:49:31,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 12:49:31,165 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 12:49:31,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 12:49:30" (1/3) ... [2025-02-08 12:49:31,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57edcd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:49:31, skipping insertion in model container [2025-02-08 12:49:31,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:30" (2/3) ... [2025-02-08 12:49:31,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57edcd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:49:31, skipping insertion in model container [2025-02-08 12:49:31,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:49:31" (3/3) ... [2025-02-08 12:49:31,166 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2025-02-08 12:49:31,179 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 12:49:31,180 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i that has 2 procedures, 20 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 12:49:31,230 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 12:49:31,240 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;@46a8b34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 12:49:31,240 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 12:49:31,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 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) [2025-02-08 12:49:31,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-08 12:49:31,248 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 12:49:31,249 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 12:49:31,249 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 12:49:31,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 12:49:31,253 INFO L85 PathProgramCache]: Analyzing trace with hash -463035245, now seen corresponding path program 1 times [2025-02-08 12:49:31,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 12:49:31,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468090094] [2025-02-08 12:49:31,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 12:49:31,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 12:49:31,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 12:49:31,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 12:49:31,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 12:49:31,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 12:49:31,387 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 12:49:31,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 12:49:31,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 12:49:31,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 12:49:31,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 12:49:31,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 12:49:31,443 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 12:49:31,444 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-08 12:49:31,445 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-08 12:49:31,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 12:49:31,448 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 12:49:31,467 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 12:49:31,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 12:49:31 BoogieIcfgContainer [2025-02-08 12:49:31,471 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 12:49:31,472 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 12:49:31,472 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 12:49:31,472 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 12:49:31,472 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:49:31" (3/4) ... [2025-02-08 12:49:31,474 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 12:49:31,475 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 12:49:31,477 INFO L158 Benchmark]: Toolchain (without parser) took 1313.43ms. Allocated memory is still 167.8MB. Free memory was 129.3MB in the beginning and 120.2MB in the end (delta: 9.1MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2025-02-08 12:49:31,477 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:31,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 673.15ms. Allocated memory is still 167.8MB. Free memory was 129.3MB in the beginning and 69.7MB in the end (delta: 59.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-08 12:49:31,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.34ms. Allocated memory is still 167.8MB. Free memory was 69.7MB in the beginning and 67.0MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 12:49:31,478 INFO L158 Benchmark]: Boogie Preprocessor took 26.14ms. Allocated memory is still 167.8MB. Free memory was 67.0MB in the beginning and 65.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:31,479 INFO L158 Benchmark]: IcfgBuilder took 261.86ms. Allocated memory is still 167.8MB. Free memory was 65.4MB in the beginning and 52.1MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 12:49:31,479 INFO L158 Benchmark]: TraceAbstraction took 309.64ms. Allocated memory is still 167.8MB. Free memory was 51.4MB in the beginning and 120.3MB in the end (delta: -68.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:31,480 INFO L158 Benchmark]: Witness Printer took 3.13ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 120.2MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:31,481 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 117.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 673.15ms. Allocated memory is still 167.8MB. Free memory was 129.3MB in the beginning and 69.7MB in the end (delta: 59.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.34ms. Allocated memory is still 167.8MB. Free memory was 69.7MB in the beginning and 67.0MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.14ms. Allocated memory is still 167.8MB. Free memory was 67.0MB in the beginning and 65.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 261.86ms. Allocated memory is still 167.8MB. Free memory was 65.4MB in the beginning and 52.1MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 309.64ms. Allocated memory is still 167.8MB. Free memory was 51.4MB in the beginning and 120.3MB in the end (delta: -68.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.13ms. Allocated memory is still 167.8MB. Free memory was 120.3MB in the beginning and 120.2MB in the end (delta: 33.1kB). 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: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565, overapproximation of fgets at line 1563. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_multiply_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1572] CALL funcPtr(data) [L1550] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data * 2 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: 1552]: 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, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 11 NumberOfCodeBlocks, 11 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-08 12:49:31,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 96d4963263642f4592b0ca397fa66ff996e958e14ed7b8874d6fd377a760563a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 12:49:33,319 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 12:49:33,395 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-02-08 12:49:33,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 12:49:33,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 12:49:33,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-02-08 12:49:33,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 12:49:33,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 12:49:33,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 12:49:33,442 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 12:49:33,442 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 12:49:33,442 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 12:49:33,442 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 12:49:33,443 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 12:49:33,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 12:49:33,443 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 12:49:33,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 12:49:33,443 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 12:49:33,443 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 12:49:33,443 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 12:49:33,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 12:49:33,443 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 12:49:33,444 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 12:49:33,444 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 12:49:33,444 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 12:49:33,444 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 12:49:33,444 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 12:49:33,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 12:49:33,444 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 12:49:33,444 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 12:49:33,444 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 12:49:33,444 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 12:49:33,444 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 12:49:33,445 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 12:49:33,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 12:49:33,445 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 12:49:33,445 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 12:49:33,445 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 12:49:33,445 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 12:49:33,445 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 12:49:33,445 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 12:49:33,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 12:49:33,445 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 12:49:33,445 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 12:49:33,446 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 12:49:33,446 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 96d4963263642f4592b0ca397fa66ff996e958e14ed7b8874d6fd377a760563a [2025-02-08 12:49:33,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 12:49:33,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 12:49:33,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 12:49:33,666 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 12:49:33,666 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 12:49:33,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2025-02-08 12:49:34,786 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b1744bef/67561da001ec458495012cc0d8460230/FLAG8114425d8 [2025-02-08 12:49:35,100 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 12:49:35,101 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2025-02-08 12:49:35,125 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b1744bef/67561da001ec458495012cc0d8460230/FLAG8114425d8 [2025-02-08 12:49:35,350 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9b1744bef/67561da001ec458495012cc0d8460230 [2025-02-08 12:49:35,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 12:49:35,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 12:49:35,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 12:49:35,354 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 12:49:35,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 12:49:35,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:49:35" (1/1) ... [2025-02-08 12:49:35,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56d234e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:35, skipping insertion in model container [2025-02-08 12:49:35,358 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:49:35" (1/1) ... [2025-02-08 12:49:35,395 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 12:49:35,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 12:49:35,861 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 12:49:35,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 12:49:36,067 INFO L204 MainTranslator]: Completed translation [2025-02-08 12:49:36,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36 WrapperNode [2025-02-08 12:49:36,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 12:49:36,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 12:49:36,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 12:49:36,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 12:49:36,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (1/1) ... [2025-02-08 12:49:36,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (1/1) ... [2025-02-08 12:49:36,116 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 64 [2025-02-08 12:49:36,117 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 12:49:36,117 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 12:49:36,118 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 12:49:36,118 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 12:49:36,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (1/1) ... [2025-02-08 12:49:36,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (1/1) ... [2025-02-08 12:49:36,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (1/1) ... [2025-02-08 12:49:36,136 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]. [2025-02-08 12:49:36,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (1/1) ... [2025-02-08 12:49:36,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (1/1) ... [2025-02-08 12:49:36,141 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (1/1) ... [2025-02-08 12:49:36,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (1/1) ... [2025-02-08 12:49:36,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (1/1) ... [2025-02-08 12:49:36,144 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (1/1) ... [2025-02-08 12:49:36,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 12:49:36,146 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 12:49:36,146 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 12:49:36,147 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 12:49:36,147 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (1/1) ... [2025-02-08 12:49:36,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 12:49:36,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 12:49:36,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 12:49:36,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 12:49:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-08 12:49:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-08 12:49:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 12:49:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 12:49:36,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 12:49:36,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 12:49:36,296 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 12:49:36,299 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 12:49:36,412 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2025-02-08 12:49:36,415 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 12:49:36,428 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 12:49:36,428 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 12:49:36,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:49:36 BoogieIcfgContainer [2025-02-08 12:49:36,429 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 12:49:36,431 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 12:49:36,431 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 12:49:36,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 12:49:36,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 12:49:35" (1/3) ... [2025-02-08 12:49:36,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db7a86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:49:36, skipping insertion in model container [2025-02-08 12:49:36,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:36" (2/3) ... [2025-02-08 12:49:36,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db7a86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:49:36, skipping insertion in model container [2025-02-08 12:49:36,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:49:36" (3/3) ... [2025-02-08 12:49:36,436 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2025-02-08 12:49:36,446 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 12:49:36,448 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i that has 2 procedures, 20 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 12:49:36,490 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 12:49:36,498 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;@5422b8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 12:49:36,498 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 12:49:36,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 16 states have internal predecessors, (18), 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) [2025-02-08 12:49:36,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-08 12:49:36,505 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 12:49:36,505 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 12:49:36,506 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 12:49:36,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 12:49:36,509 INFO L85 PathProgramCache]: Analyzing trace with hash -463035245, now seen corresponding path program 1 times [2025-02-08 12:49:36,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 12:49:36,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637061081] [2025-02-08 12:49:36,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 12:49:36,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 12:49:36,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 12:49:36,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 12:49:36,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 12:49:36,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 12:49:36,650 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 12:49:36,650 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 12:49:36,650 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 12:49:36,651 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 12:49:36,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 12:49:36,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 12:49:36,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 12:49:36,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 12:49:36,682 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-08 12:49:36,683 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 12:49:36,684 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-08 12:49:36,685 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-08 12:49:36,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 12:49:36,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 12:49:36,890 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 12:49:36,906 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 12:49:36,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 12:49:36 BoogieIcfgContainer [2025-02-08 12:49:36,910 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 12:49:36,911 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 12:49:36,911 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 12:49:36,912 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 12:49:36,912 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:49:36" (3/4) ... [2025-02-08 12:49:36,914 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 12:49:36,914 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 12:49:36,915 INFO L158 Benchmark]: Toolchain (without parser) took 1562.41ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 86.8MB in the beginning and 177.7MB in the end (delta: -90.9MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2025-02-08 12:49:36,916 INFO L158 Benchmark]: CDTParser took 2.05ms. Allocated memory is still 117.4MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:36,916 INFO L158 Benchmark]: CACSL2BoogieTranslator took 714.71ms. Allocated memory is still 117.4MB. Free memory was 86.6MB in the beginning and 64.3MB in the end (delta: 22.3MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2025-02-08 12:49:36,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.01ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 61.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:36,917 INFO L158 Benchmark]: Boogie Preprocessor took 28.69ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 59.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 12:49:36,917 INFO L158 Benchmark]: IcfgBuilder took 282.51ms. Allocated memory is still 117.4MB. Free memory was 59.4MB in the beginning and 44.7MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 12:49:36,918 INFO L158 Benchmark]: TraceAbstraction took 479.33ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 44.2MB in the beginning and 177.7MB in the end (delta: -133.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:36,918 INFO L158 Benchmark]: Witness Printer took 3.58ms. Allocated memory is still 218.1MB. Free memory was 177.7MB in the beginning and 177.7MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:36,919 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.05ms. Allocated memory is still 117.4MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 714.71ms. Allocated memory is still 117.4MB. Free memory was 86.6MB in the beginning and 64.3MB in the end (delta: 22.3MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.01ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 61.7MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.69ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 59.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 282.51ms. Allocated memory is still 117.4MB. Free memory was 59.4MB in the beginning and 44.7MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 479.33ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 44.2MB in the beginning and 177.7MB in the end (delta: -133.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.58ms. Allocated memory is still 218.1MB. Free memory was 177.7MB in the beginning and 177.7MB in the end (delta: 42.6kB). 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: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565, overapproximation of fgets at line 1563. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_multiply_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1572] CALL funcPtr(data) [L1550] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data * 2 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: 1552]: 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, 20 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=20occurred 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, 11 NumberOfCodeBlocks, 11 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-08 12:49:36,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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