./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_67_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc 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/CWE190_Integer_Overflow__int_fgets_add_67_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 3e96425cf6306e577fc0f57b7370846a01258c7d5fcb3ad4be19d3433ecd6fe3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 15:43:00,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 15:43:00,509 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-06 15:43:00,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 15:43:00,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 15:43:00,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 15:43:00,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 15:43:00,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 15:43:00,550 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 15:43:00,550 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 15:43:00,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 15:43:00,551 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 15:43:00,551 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 15:43:00,551 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 15:43:00,552 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 15:43:00,552 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 15:43:00,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 15:43:00,552 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 -> 3e96425cf6306e577fc0f57b7370846a01258c7d5fcb3ad4be19d3433ecd6fe3 [2025-02-06 15:43:00,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 15:43:00,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 15:43:00,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 15:43:00,768 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 15:43:00,768 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 15:43:00,769 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_67_bad.i [2025-02-06 15:43:01,968 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/da016e2d0/a4846072f7684fd790a258ba3efcfef0/FLAG0441d544a [2025-02-06 15:43:02,361 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 15:43:02,362 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_67_bad.i [2025-02-06 15:43:02,379 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/da016e2d0/a4846072f7684fd790a258ba3efcfef0/FLAG0441d544a [2025-02-06 15:43:02,550 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/da016e2d0/a4846072f7684fd790a258ba3efcfef0 [2025-02-06 15:43:02,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 15:43:02,552 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 15:43:02,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 15:43:02,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 15:43:02,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 15:43:02,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:43:02" (1/1) ... [2025-02-06 15:43:02,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@531c0d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:02, skipping insertion in model container [2025-02-06 15:43:02,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:43:02" (1/1) ... [2025-02-06 15:43:02,586 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 15:43:03,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 15:43:03,089 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 15:43:03,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 15:43:03,244 INFO L204 MainTranslator]: Completed translation [2025-02-06 15:43:03,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03 WrapperNode [2025-02-06 15:43:03,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 15:43:03,246 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 15:43:03,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 15:43:03,246 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 15:43:03,250 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (1/1) ... [2025-02-06 15:43:03,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (1/1) ... [2025-02-06 15:43:03,280 INFO L138 Inliner]: procedures = 499, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2025-02-06 15:43:03,280 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 15:43:03,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 15:43:03,280 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 15:43:03,280 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 15:43:03,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (1/1) ... [2025-02-06 15:43:03,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (1/1) ... [2025-02-06 15:43:03,291 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (1/1) ... [2025-02-06 15:43:03,309 INFO L175 MemorySlicer]: Split 5 memory accesses to 3 slices as follows [1, 2, 2]. 40 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2025-02-06 15:43:03,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (1/1) ... [2025-02-06 15:43:03,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (1/1) ... [2025-02-06 15:43:03,317 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (1/1) ... [2025-02-06 15:43:03,318 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (1/1) ... [2025-02-06 15:43:03,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (1/1) ... [2025-02-06 15:43:03,319 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (1/1) ... [2025-02-06 15:43:03,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 15:43:03,325 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 15:43:03,325 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 15:43:03,325 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 15:43:03,325 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (1/1) ... [2025-02-06 15:43:03,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 15:43:03,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:43:03,349 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) [2025-02-06 15:43:03,354 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 [2025-02-06 15:43:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-06 15:43:03,383 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-06 15:43:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 15:43:03,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 15:43:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 15:43:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 15:43:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 15:43:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 15:43:03,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 15:43:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 15:43:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 15:43:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 15:43:03,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 15:43:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 15:43:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 15:43:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 15:43:03,517 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 15:43:03,519 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 15:43:03,602 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2025-02-06 15:43:03,602 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 15:43:03,612 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 15:43:03,613 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 15:43:03,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:43:03 BoogieIcfgContainer [2025-02-06 15:43:03,613 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 15:43:03,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 15:43:03,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 15:43:03,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 15:43:03,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 03:43:02" (1/3) ... [2025-02-06 15:43:03,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2dd88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:43:03, skipping insertion in model container [2025-02-06 15:43:03,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:03" (2/3) ... [2025-02-06 15:43:03,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2dd88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:43:03, skipping insertion in model container [2025-02-06 15:43:03,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:43:03" (3/3) ... [2025-02-06 15:43:03,627 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_67_bad.i [2025-02-06 15:43:03,649 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 15:43:03,650 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_add_67_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 15:43:03,715 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 15:43:03,727 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;@bf977b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 15:43:03,728 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 15:43:03,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 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) [2025-02-06 15:43:03,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-06 15:43:03,737 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:43:03,737 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:43:03,737 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:43:03,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:43:03,742 INFO L85 PathProgramCache]: Analyzing trace with hash -346170416, now seen corresponding path program 1 times [2025-02-06 15:43:03,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 15:43:03,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176491595] [2025-02-06 15:43:03,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:43:03,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 15:43:03,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 15:43:03,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 15:43:03,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:43:03,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 15:43:04,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 15:43:04,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 15:43:04,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176491595] [2025-02-06 15:43:04,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176491595] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 15:43:04,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 15:43:04,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 15:43:04,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072631446] [2025-02-06 15:43:04,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 15:43:04,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 15:43:04,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 15:43:04,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 15:43:04,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 15:43:04,190 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 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) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 15:43:04,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 15:43:04,219 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2025-02-06 15:43:04,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 15:43:04,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2025-02-06 15:43:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 15:43:04,225 INFO L225 Difference]: With dead ends: 23 [2025-02-06 15:43:04,225 INFO L226 Difference]: Without dead ends: 14 [2025-02-06 15:43:04,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 15:43:04,230 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 15:43:04,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 57 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 15:43:04,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-02-06 15:43:04,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-02-06 15:43:04,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 15:43:04,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2025-02-06 15:43:04,256 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2025-02-06 15:43:04,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 15:43:04,257 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2025-02-06 15:43:04,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 15:43:04,257 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2025-02-06 15:43:04,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 15:43:04,257 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:43:04,258 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:43:04,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 15:43:04,258 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:43:04,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:43:04,259 INFO L85 PathProgramCache]: Analyzing trace with hash -2141348323, now seen corresponding path program 1 times [2025-02-06 15:43:04,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 15:43:04,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179931150] [2025-02-06 15:43:04,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:43:04,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 15:43:04,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 15:43:04,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 15:43:04,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:43:04,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 15:43:04,320 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 15:43:04,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 15:43:04,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 15:43:04,342 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:43:04,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 15:43:04,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 15:43:04,367 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 15:43:04,368 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-06 15:43:04,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-06 15:43:04,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 15:43:04,372 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 15:43:04,392 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 15:43:04,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 03:43:04 BoogieIcfgContainer [2025-02-06 15:43:04,397 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 15:43:04,397 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 15:43:04,398 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 15:43:04,398 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 15:43:04,399 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:43:03" (3/4) ... [2025-02-06 15:43:04,400 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 15:43:04,402 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 15:43:04,402 INFO L158 Benchmark]: Toolchain (without parser) took 1849.84ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 103.6MB in the end (delta: 5.5MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2025-02-06 15:43:04,403 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:43:04,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 691.81ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 49.3MB in the end (delta: 59.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-06 15:43:04,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.99ms. Allocated memory is still 142.6MB. Free memory was 49.3MB in the beginning and 47.1MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 15:43:04,404 INFO L158 Benchmark]: Boogie Preprocessor took 44.16ms. Allocated memory is still 142.6MB. Free memory was 47.1MB in the beginning and 44.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:43:04,404 INFO L158 Benchmark]: IcfgBuilder took 288.31ms. Allocated memory is still 142.6MB. Free memory was 44.9MB in the beginning and 100.7MB in the end (delta: -55.7MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2025-02-06 15:43:04,404 INFO L158 Benchmark]: TraceAbstraction took 782.19ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 103.6MB in the end (delta: -3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:43:04,405 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 103.6MB in the end (delta: 15.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:43:04,406 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 201.3MB. Free memory is still 123.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 691.81ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 49.3MB in the end (delta: 59.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.99ms. Allocated memory is still 142.6MB. Free memory was 49.3MB in the beginning and 47.1MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.16ms. Allocated memory is still 142.6MB. Free memory was 47.1MB in the beginning and 44.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 288.31ms. Allocated memory is still 142.6MB. Free memory was 44.9MB in the beginning and 100.7MB in the end (delta: -55.7MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * TraceAbstraction took 782.19ms. Allocated memory is still 142.6MB. Free memory was 99.9MB in the beginning and 103.6MB in the end (delta: -3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 103.6MB in the end (delta: 15.6kB). 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 1562, overapproximation of fgets at line 1560. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] 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) [L1575] 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] [L1576] CALL CWE190_Integer_Overflow__int_fgets_add_67_bad() [L1555] int data; [L1556] CWE190_Integer_Overflow__int_fgets_add_67_structType myStruct; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={18:0}] [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1569] myStruct.structFirst = data [L1570] CALL CWE190_Integer_Overflow__int_fgets_add_67b_badSink(myStruct) [L1581] EXPR myStruct.structFirst [L1581] int data = myStruct.structFirst; [L1583] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 21 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2025-02-06 15:43:04,422 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/CWE190_Integer_Overflow__int_fgets_add_67_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 3e96425cf6306e577fc0f57b7370846a01258c7d5fcb3ad4be19d3433ecd6fe3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 15:43:06,384 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 15:43:06,491 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-02-06 15:43:06,498 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 15:43:06,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 15:43:06,498 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-02-06 15:43:06,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 15:43:06,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 15:43:06,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 15:43:06,515 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 15:43:06,515 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 15:43:06,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 15:43:06,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 15:43:06,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 15:43:06,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 15:43:06,516 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 15:43:06,516 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 15:43:06,517 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 15:43:06,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 15:43:06,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 15:43:06,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 15:43:06,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 15:43:06,517 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 15:43:06,517 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 15:43:06,517 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 15:43:06,518 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 15:43:06,518 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 15:43:06,518 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 15:43:06,518 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 15:43:06,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 15:43:06,518 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 -> 3e96425cf6306e577fc0f57b7370846a01258c7d5fcb3ad4be19d3433ecd6fe3 [2025-02-06 15:43:06,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 15:43:06,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 15:43:06,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 15:43:06,799 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 15:43:06,800 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 15:43:06,800 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_67_bad.i [2025-02-06 15:43:08,132 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6f9682712/df839b15ec9d4bd884b64ffad372a503/FLAG0a1550d31 [2025-02-06 15:43:08,466 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 15:43:08,470 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_67_bad.i [2025-02-06 15:43:08,491 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6f9682712/df839b15ec9d4bd884b64ffad372a503/FLAG0a1550d31 [2025-02-06 15:43:08,503 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6f9682712/df839b15ec9d4bd884b64ffad372a503 [2025-02-06 15:43:08,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 15:43:08,507 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 15:43:08,508 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 15:43:08,508 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 15:43:08,511 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 15:43:08,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:43:08" (1/1) ... [2025-02-06 15:43:08,513 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75192c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:08, skipping insertion in model container [2025-02-06 15:43:08,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:43:08" (1/1) ... [2025-02-06 15:43:08,549 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 15:43:09,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 15:43:09,033 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 15:43:09,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 15:43:09,224 INFO L204 MainTranslator]: Completed translation [2025-02-06 15:43:09,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09 WrapperNode [2025-02-06 15:43:09,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 15:43:09,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 15:43:09,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 15:43:09,227 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 15:43:09,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (1/1) ... [2025-02-06 15:43:09,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (1/1) ... [2025-02-06 15:43:09,273 INFO L138 Inliner]: procedures = 504, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 71 [2025-02-06 15:43:09,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 15:43:09,274 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 15:43:09,274 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 15:43:09,274 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 15:43:09,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (1/1) ... [2025-02-06 15:43:09,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (1/1) ... [2025-02-06 15:43:09,285 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (1/1) ... [2025-02-06 15:43:09,299 INFO L175 MemorySlicer]: Split 5 memory accesses to 3 slices as follows [1, 2, 2]. 40 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2025-02-06 15:43:09,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (1/1) ... [2025-02-06 15:43:09,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (1/1) ... [2025-02-06 15:43:09,311 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (1/1) ... [2025-02-06 15:43:09,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (1/1) ... [2025-02-06 15:43:09,316 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (1/1) ... [2025-02-06 15:43:09,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (1/1) ... [2025-02-06 15:43:09,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 15:43:09,325 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 15:43:09,325 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 15:43:09,325 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 15:43:09,326 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (1/1) ... [2025-02-06 15:43:09,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 15:43:09,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:43:09,355 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) [2025-02-06 15:43:09,357 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 [2025-02-06 15:43:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-06 15:43:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-06 15:43:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 15:43:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 15:43:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-06 15:43:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-06 15:43:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 15:43:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 15:43:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 15:43:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-06 15:43:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-06 15:43:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-06 15:43:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 15:43:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-06 15:43:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-06 15:43:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-06 15:43:09,489 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 15:43:09,490 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 15:43:09,678 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2025-02-06 15:43:09,678 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 15:43:09,693 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 15:43:09,694 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 15:43:09,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:43:09 BoogieIcfgContainer [2025-02-06 15:43:09,694 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 15:43:09,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 15:43:09,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 15:43:09,706 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 15:43:09,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 03:43:08" (1/3) ... [2025-02-06 15:43:09,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf62c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:43:09, skipping insertion in model container [2025-02-06 15:43:09,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:43:09" (2/3) ... [2025-02-06 15:43:09,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf62c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:43:09, skipping insertion in model container [2025-02-06 15:43:09,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:43:09" (3/3) ... [2025-02-06 15:43:09,708 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_67_bad.i [2025-02-06 15:43:09,725 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 15:43:09,729 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_add_67_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 15:43:09,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 15:43:09,796 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;@323bf921, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 15:43:09,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 15:43:09,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 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) [2025-02-06 15:43:09,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-06 15:43:09,810 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:43:09,811 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:43:09,811 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:43:09,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:43:09,819 INFO L85 PathProgramCache]: Analyzing trace with hash -346170416, now seen corresponding path program 1 times [2025-02-06 15:43:09,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 15:43:09,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842245048] [2025-02-06 15:43:09,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:43:09,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 15:43:09,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:43:09,843 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) [2025-02-06 15:43:09,844 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 [2025-02-06 15:43:09,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 15:43:09,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 15:43:09,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:43:09,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 15:43:09,973 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 15:43:09,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 15:43:09,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 15:43:09,988 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 15:43:09,988 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 15:43:09,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842245048] [2025-02-06 15:43:09,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842245048] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 15:43:09,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 15:43:09,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 15:43:09,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634074355] [2025-02-06 15:43:09,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 15:43:09,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 15:43:09,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 15:43:10,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 15:43:10,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 15:43:10,006 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 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) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 15:43:10,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 15:43:10,014 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2025-02-06 15:43:10,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 15:43:10,015 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2025-02-06 15:43:10,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 15:43:10,019 INFO L225 Difference]: With dead ends: 23 [2025-02-06 15:43:10,019 INFO L226 Difference]: Without dead ends: 14 [2025-02-06 15:43:10,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 15:43:10,022 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 15:43:10,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 15:43:10,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-02-06 15:43:10,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-02-06 15:43:10,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 15:43:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2025-02-06 15:43:10,043 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2025-02-06 15:43:10,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 15:43:10,044 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2025-02-06 15:43:10,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 15:43:10,044 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2025-02-06 15:43:10,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 15:43:10,045 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:43:10,045 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:43:10,056 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 15:43:10,249 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 [2025-02-06 15:43:10,249 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:43:10,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:43:10,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2141348323, now seen corresponding path program 1 times [2025-02-06 15:43:10,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 15:43:10,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961518836] [2025-02-06 15:43:10,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:43:10,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 15:43:10,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:43:10,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 15:43:10,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 15:43:10,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 15:43:10,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 15:43:10,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:43:10,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 15:43:10,442 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 15:43:10,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 15:43:10,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 15:43:10,523 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:43:10,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 15:43:10,541 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-06 15:43:10,541 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 15:43:10,542 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-06 15:43:10,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-06 15:43:10,551 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 15:43:10,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 15:43:10,746 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 15:43:10,759 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 15:43:10,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 03:43:10 BoogieIcfgContainer [2025-02-06 15:43:10,760 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 15:43:10,761 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 15:43:10,761 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 15:43:10,761 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 15:43:10,762 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:43:09" (3/4) ... [2025-02-06 15:43:10,763 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 15:43:10,764 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 15:43:10,764 INFO L158 Benchmark]: Toolchain (without parser) took 2257.03ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 61.9MB in the end (delta: 27.2MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2025-02-06 15:43:10,764 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 83.9MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:43:10,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.89ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 78.3MB in the end (delta: 10.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2025-02-06 15:43:10,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.27ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 75.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:43:10,767 INFO L158 Benchmark]: Boogie Preprocessor took 50.44ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 72.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:43:10,767 INFO L158 Benchmark]: IcfgBuilder took 372.49ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 58.4MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 15:43:10,767 INFO L158 Benchmark]: TraceAbstraction took 1061.65ms. Allocated memory is still 117.4MB. Free memory was 57.6MB in the beginning and 62.6MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:43:10,767 INFO L158 Benchmark]: Witness Printer took 2.63ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 61.9MB in the end (delta: 650.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:43:10,768 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 83.9MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.89ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 78.3MB in the end (delta: 10.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.27ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 75.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.44ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 72.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 372.49ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 58.4MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1061.65ms. Allocated memory is still 117.4MB. Free memory was 57.6MB in the beginning and 62.6MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.63ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 61.9MB in the end (delta: 650.6kB). 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 1562, overapproximation of fgets at line 1560. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] 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) [L1575] 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] [L1576] CALL CWE190_Integer_Overflow__int_fgets_add_67_bad() [L1555] int data; [L1556] CWE190_Integer_Overflow__int_fgets_add_67_structType myStruct; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myStruct={7:0}] [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1569] myStruct.structFirst = data [L1570] CALL CWE190_Integer_Overflow__int_fgets_add_67b_badSink(myStruct) [L1581] EXPR myStruct.structFirst [L1581] int data = myStruct.structFirst; [L1583] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 92 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2025-02-06 15:43:10,789 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