./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_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_22_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 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 12:49:16,244 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 12:49:16,308 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-08 12:49:16,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 12:49:16,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 12:49:16,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 12:49:16,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 12:49:16,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 12:49:16,350 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 12:49:16,351 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 12:49:16,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 12:49:16,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 12:49:16,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 12:49:16,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 12:49:16,352 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 12:49:16,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 12:49:16,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 12:49:16,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 12:49:16,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 12:49:16,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 12:49:16,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 12:49:16,354 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 12:49:16,354 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 12:49:16,354 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 12:49:16,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 12:49:16,354 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 12:49:16,354 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 12:49:16,354 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 12:49:16,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 12:49:16,355 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 12:49:16,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 12:49:16,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 12:49:16,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 12:49:16,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 12:49:16,356 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 12:49:16,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 12:49:16,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 12:49:16,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 12:49:16,356 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 12:49:16,357 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 12:49:16,357 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 12:49:16,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 12:49:16,357 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 -> 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 [2025-02-08 12:49:16,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 12:49:16,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 12:49:16,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 12:49:16,667 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 12:49:16,667 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 12:49:16,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2025-02-08 12:49:18,031 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d06be10c/cb2e43a0964744ac98bf4b0d9fba31a2/FLAGda7f3ed1b [2025-02-08 12:49:18,426 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 12:49:18,426 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2025-02-08 12:49:18,460 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d06be10c/cb2e43a0964744ac98bf4b0d9fba31a2/FLAGda7f3ed1b [2025-02-08 12:49:18,472 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2d06be10c/cb2e43a0964744ac98bf4b0d9fba31a2 [2025-02-08 12:49:18,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 12:49:18,475 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 12:49:18,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 12:49:18,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 12:49:18,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 12:49:18,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:49:18" (1/1) ... [2025-02-08 12:49:18,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eaf090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:18, skipping insertion in model container [2025-02-08 12:49:18,480 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:49:18" (1/1) ... [2025-02-08 12:49:18,524 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 12:49:19,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 12:49:19,282 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 12:49:19,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 12:49:19,501 INFO L204 MainTranslator]: Completed translation [2025-02-08 12:49:19,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19 WrapperNode [2025-02-08 12:49:19,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 12:49:19,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 12:49:19,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 12:49:19,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 12:49:19,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (1/1) ... [2025-02-08 12:49:19,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (1/1) ... [2025-02-08 12:49:19,558 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2025-02-08 12:49:19,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 12:49:19,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 12:49:19,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 12:49:19,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 12:49:19,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (1/1) ... [2025-02-08 12:49:19,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (1/1) ... [2025-02-08 12:49:19,569 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (1/1) ... [2025-02-08 12:49:19,586 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 12:49:19,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (1/1) ... [2025-02-08 12:49:19,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (1/1) ... [2025-02-08 12:49:19,591 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (1/1) ... [2025-02-08 12:49:19,591 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (1/1) ... [2025-02-08 12:49:19,593 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (1/1) ... [2025-02-08 12:49:19,594 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (1/1) ... [2025-02-08 12:49:19,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 12:49:19,598 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 12:49:19,598 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 12:49:19,598 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 12:49:19,599 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (1/1) ... [2025-02-08 12:49:19,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 12:49:19,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 12:49:19,626 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 12:49:19,628 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 12:49:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-08 12:49:19,655 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-08 12:49:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 12:49:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 12:49:19,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 12:49:19,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 12:49:19,787 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 12:49:19,789 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 12:49:19,892 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-02-08 12:49:19,893 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 12:49:19,901 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 12:49:19,901 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 12:49:19,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:49:19 BoogieIcfgContainer [2025-02-08 12:49:19,902 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 12:49:19,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 12:49:19,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 12:49:19,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 12:49:19,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 12:49:18" (1/3) ... [2025-02-08 12:49:19,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b919a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:49:19, skipping insertion in model container [2025-02-08 12:49:19,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:19" (2/3) ... [2025-02-08 12:49:19,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b919a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:49:19, skipping insertion in model container [2025-02-08 12:49:19,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:49:19" (3/3) ... [2025-02-08 12:49:19,913 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2025-02-08 12:49:19,927 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 12:49:19,928 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i that has 2 procedures, 21 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 12:49:19,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 12:49:19,981 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;@321405a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 12:49:19,981 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 12:49:19,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 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 12:49:19,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 12:49:19,989 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 12:49:19,991 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 12:49:19,991 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 12:49:19,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 12:49:19,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1324213560, now seen corresponding path program 1 times [2025-02-08 12:49:20,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 12:49:20,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078007095] [2025-02-08 12:49:20,003 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 12:49:20,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 12:49:20,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 12:49:20,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 12:49:20,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 12:49:20,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 12:49:20,155 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 12:49:20,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 12:49:20,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 12:49:20,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 12:49:20,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 12:49:20,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 12:49:20,222 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 12:49:20,224 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-08 12:49:20,226 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-08 12:49:20,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 12:49:20,230 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 12:49:20,257 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 12:49:20,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 12:49:20 BoogieIcfgContainer [2025-02-08 12:49:20,261 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 12:49:20,261 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 12:49:20,262 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 12:49:20,262 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 12:49:20,263 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:49:19" (3/4) ... [2025-02-08 12:49:20,265 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 12:49:20,265 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 12:49:20,266 INFO L158 Benchmark]: Toolchain (without parser) took 1791.38ms. Allocated memory is still 142.6MB. Free memory was 108.9MB in the beginning and 81.3MB in the end (delta: 27.6MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2025-02-08 12:49:20,267 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:20,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1026.84ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 48.4MB in the end (delta: 60.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-02-08 12:49:20,267 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.52ms. Allocated memory is still 142.6MB. Free memory was 48.4MB in the beginning and 46.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:20,268 INFO L158 Benchmark]: Boogie Preprocessor took 36.65ms. Allocated memory is still 142.6MB. Free memory was 46.2MB in the beginning and 44.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:20,268 INFO L158 Benchmark]: IcfgBuilder took 304.00ms. Allocated memory is still 142.6MB. Free memory was 44.3MB in the beginning and 99.9MB in the end (delta: -55.5MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2025-02-08 12:49:20,268 INFO L158 Benchmark]: TraceAbstraction took 356.33ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 82.0MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 12:49:20,270 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 81.3MB in the end (delta: 744.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:20,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1026.84ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 48.4MB in the end (delta: 60.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.52ms. Allocated memory is still 142.6MB. Free memory was 48.4MB in the beginning and 46.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.65ms. Allocated memory is still 142.6MB. Free memory was 46.2MB in the beginning and 44.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 304.00ms. Allocated memory is still 142.6MB. Free memory was 44.3MB in the beginning and 99.9MB in the end (delta: -55.5MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * TraceAbstraction took 356.33ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 82.0MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 81.3MB in the end (delta: 744.8kB). 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, 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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal) VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, 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] [L1581] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, 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] [L1583] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, 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: 1583]: 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, 21 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=21occurred 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, 12 NumberOfCodeBlocks, 12 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 12:49:20,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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/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_22_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 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 12:49:22,554 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 12:49:22,649 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-02-08 12:49:22,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 12:49:22,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 12:49:22,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-02-08 12:49:22,698 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 12:49:22,700 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 12:49:22,700 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 12:49:22,701 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 12:49:22,701 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 12:49:22,701 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 12:49:22,701 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 12:49:22,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 12:49:22,702 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 12:49:22,702 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 12:49:22,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 12:49:22,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 12:49:22,702 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 12:49:22,702 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 12:49:22,702 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 12:49:22,703 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 12:49:22,703 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 12:49:22,703 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 12:49:22,703 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 12:49:22,703 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 12:49:22,703 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 12:49:22,704 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 12:49:22,704 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 12:49:22,704 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 12:49:22,704 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 12:49:22,704 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 12:49:22,705 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 12:49:22,705 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 12:49:22,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 12:49:22,705 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 12:49:22,705 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 12:49:22,705 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 12:49:22,705 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 12:49:22,705 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 12:49:22,705 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 12:49:22,705 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 12:49:22,705 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 12:49:22,705 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 12:49:22,705 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 12:49:22,706 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 -> 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 [2025-02-08 12:49:23,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 12:49:23,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 12:49:23,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 12:49:23,023 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 12:49:23,023 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 12:49:23,024 INFO L431 ainManager$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_22_bad.i [2025-02-08 12:49:24,389 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7af1eea40/cb38d564170142768841f17f6cee0300/FLAGa9b6069f4 [2025-02-08 12:49:24,785 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 12:49:24,786 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2025-02-08 12:49:24,817 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7af1eea40/cb38d564170142768841f17f6cee0300/FLAGa9b6069f4 [2025-02-08 12:49:24,954 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7af1eea40/cb38d564170142768841f17f6cee0300 [2025-02-08 12:49:24,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 12:49:24,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 12:49:24,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 12:49:24,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 12:49:24,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 12:49:24,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:49:24" (1/1) ... [2025-02-08 12:49:24,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1336da8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:24, skipping insertion in model container [2025-02-08 12:49:24,967 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:49:24" (1/1) ... [2025-02-08 12:49:25,016 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 12:49:25,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 12:49:25,718 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 12:49:25,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 12:49:25,959 INFO L204 MainTranslator]: Completed translation [2025-02-08 12:49:25,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25 WrapperNode [2025-02-08 12:49:25,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 12:49:25,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 12:49:25,960 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 12:49:25,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 12:49:25,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (1/1) ... [2025-02-08 12:49:25,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (1/1) ... [2025-02-08 12:49:26,017 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2025-02-08 12:49:26,017 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 12:49:26,019 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 12:49:26,019 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 12:49:26,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 12:49:26,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (1/1) ... [2025-02-08 12:49:26,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (1/1) ... [2025-02-08 12:49:26,034 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (1/1) ... [2025-02-08 12:49:26,052 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 12:49:26,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (1/1) ... [2025-02-08 12:49:26,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (1/1) ... [2025-02-08 12:49:26,067 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (1/1) ... [2025-02-08 12:49:26,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (1/1) ... [2025-02-08 12:49:26,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (1/1) ... [2025-02-08 12:49:26,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (1/1) ... [2025-02-08 12:49:26,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 12:49:26,079 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 12:49:26,081 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 12:49:26,082 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 12:49:26,083 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (1/1) ... [2025-02-08 12:49:26,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 12:49:26,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 12:49:26,117 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 12:49:26,119 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 12:49:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-08 12:49:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-08 12:49:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 12:49:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 12:49:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 12:49:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 12:49:26,260 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 12:49:26,262 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 12:49:26,371 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-02-08 12:49:26,372 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 12:49:26,384 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 12:49:26,386 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 12:49:26,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:49:26 BoogieIcfgContainer [2025-02-08 12:49:26,386 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 12:49:26,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 12:49:26,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 12:49:26,393 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 12:49:26,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 12:49:24" (1/3) ... [2025-02-08 12:49:26,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b332157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:49:26, skipping insertion in model container [2025-02-08 12:49:26,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:49:25" (2/3) ... [2025-02-08 12:49:26,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b332157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:49:26, skipping insertion in model container [2025-02-08 12:49:26,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:49:26" (3/3) ... [2025-02-08 12:49:26,396 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2025-02-08 12:49:26,408 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 12:49:26,410 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i that has 2 procedures, 21 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 12:49:26,479 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 12:49:26,491 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;@68f673f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 12:49:26,492 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-08 12:49:26,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 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 12:49:26,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-08 12:49:26,501 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 12:49:26,501 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 12:49:26,502 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-08 12:49:26,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 12:49:26,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1324213560, now seen corresponding path program 1 times [2025-02-08 12:49:26,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 12:49:26,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [269951969] [2025-02-08 12:49:26,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 12:49:26,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 12:49:26,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 12:49:26,520 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 12:49:26,522 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 12:49:26,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 12:49:26,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 12:49:26,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 12:49:26,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 12:49:26,678 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 12:49:26,690 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 12:49:26,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 12:49:26,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 12:49:26,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 12:49:26,732 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-08 12:49:26,733 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 12:49:26,734 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-08 12:49:26,736 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-08 12:49:26,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 12:49:26,937 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 12:49:26,940 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-08 12:49:26,966 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 12:49:26,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 12:49:26 BoogieIcfgContainer [2025-02-08 12:49:26,970 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 12:49:26,971 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 12:49:26,971 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 12:49:26,972 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 12:49:26,972 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:49:26" (3/4) ... [2025-02-08 12:49:26,974 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 12:49:26,975 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 12:49:26,976 INFO L158 Benchmark]: Toolchain (without parser) took 2017.92ms. Allocated memory is still 117.4MB. Free memory was 87.6MB in the beginning and 69.4MB in the end (delta: 18.2MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2025-02-08 12:49:26,977 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory was 61.2MB in the beginning and 61.1MB in the end (delta: 18.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:26,977 INFO L158 Benchmark]: CACSL2BoogieTranslator took 999.86ms. Allocated memory is still 117.4MB. Free memory was 87.4MB in the beginning and 67.1MB in the end (delta: 20.3MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2025-02-08 12:49:26,977 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.45ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 64.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:26,978 INFO L158 Benchmark]: Boogie Preprocessor took 59.64ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 62.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:26,978 INFO L158 Benchmark]: IcfgBuilder took 307.07ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 48.6MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 12:49:26,978 INFO L158 Benchmark]: TraceAbstraction took 581.55ms. Allocated memory is still 117.4MB. Free memory was 48.1MB in the beginning and 70.0MB in the end (delta: -21.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:26,978 INFO L158 Benchmark]: Witness Printer took 3.64ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 69.4MB in the end (delta: 595.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 12:49:26,981 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory was 61.2MB in the beginning and 61.1MB in the end (delta: 18.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 999.86ms. Allocated memory is still 117.4MB. Free memory was 87.4MB in the beginning and 67.1MB in the end (delta: 20.3MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.45ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 64.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.64ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 62.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 307.07ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 48.6MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 581.55ms. Allocated memory is still 117.4MB. Free memory was 48.1MB in the beginning and 70.0MB in the end (delta: -21.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.64ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 69.4MB in the end (delta: 595.6kB). 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, 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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal) VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, 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] [L1581] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, 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] [L1583] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, 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: 1583]: 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, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=21occurred 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, 12 NumberOfCodeBlocks, 12 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 12:49:27,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample