./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 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_01_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 4835d71ad10fa33b78c8eb84d9ef1c8b34094f191f978bb908e5c75eb4871d2a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 03:42:17,257 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 03:42:17,307 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-01-10 03:42:17,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 03:42:17,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 03:42:17,351 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 03:42:17,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 03:42:17,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 03:42:17,356 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 03:42:17,356 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 03:42:17,356 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 03:42:17,356 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 03:42:17,357 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 03:42:17,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 03:42:17,357 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 03:42:17,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:42:17,358 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:42:17,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 03:42:17,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 03:42:17,358 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 -> 4835d71ad10fa33b78c8eb84d9ef1c8b34094f191f978bb908e5c75eb4871d2a [2025-01-10 03:42:17,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 03:42:17,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 03:42:17,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 03:42:17,619 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 03:42:17,619 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 03:42:17,620 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_01_bad.i [2025-01-10 03:42:18,732 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fe32d15c7/08fdfeeaa6124d24bdbc39355ee8eeef/FLAG9e01a45b8 [2025-01-10 03:42:19,043 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 03:42:19,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_01_bad.i [2025-01-10 03:42:19,061 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fe32d15c7/08fdfeeaa6124d24bdbc39355ee8eeef/FLAG9e01a45b8 [2025-01-10 03:42:19,073 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fe32d15c7/08fdfeeaa6124d24bdbc39355ee8eeef [2025-01-10 03:42:19,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 03:42:19,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 03:42:19,077 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 03:42:19,077 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 03:42:19,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 03:42:19,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:19,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d89f267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19, skipping insertion in model container [2025-01-10 03:42:19,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:19,128 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 03:42:19,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 03:42:19,729 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 03:42:19,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 03:42:19,980 INFO L204 MainTranslator]: Completed translation [2025-01-10 03:42:19,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19 WrapperNode [2025-01-10 03:42:19,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 03:42:19,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 03:42:19,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 03:42:19,983 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 03:42:19,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,010 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,025 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2025-01-10 03:42:20,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 03:42:20,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 03:42:20,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 03:42:20,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 03:42:20,033 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,036 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,053 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]. [2025-01-10 03:42:20,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,060 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 03:42:20,065 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 03:42:20,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 03:42:20,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 03:42:20,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (1/1) ... [2025-01-10 03:42:20,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:42:20,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 03:42:20,128 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) [2025-01-10 03:42:20,133 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 [2025-01-10 03:42:20,149 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-01-10 03:42:20,149 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-01-10 03:42:20,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 03:42:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 03:42:20,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 03:42:20,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 03:42:20,258 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 03:42:20,260 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 03:42:20,380 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-01-10 03:42:20,380 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 03:42:20,389 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 03:42:20,389 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 03:42:20,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:42:20 BoogieIcfgContainer [2025-01-10 03:42:20,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 03:42:20,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 03:42:20,393 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 03:42:20,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 03:42:20,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:42:19" (1/3) ... [2025-01-10 03:42:20,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd8bb79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:42:20, skipping insertion in model container [2025-01-10 03:42:20,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:19" (2/3) ... [2025-01-10 03:42:20,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd8bb79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:42:20, skipping insertion in model container [2025-01-10 03:42:20,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:42:20" (3/3) ... [2025-01-10 03:42:20,399 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_01_bad.i [2025-01-10 03:42:20,411 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 03:42:20,415 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_add_01_bad.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-01-10 03:42:20,502 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 03:42:20,554 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;@12c34e9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 03:42:20,554 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-10 03:42:20,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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) [2025-01-10 03:42:20,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-10 03:42:20,565 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:42:20,566 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:42:20,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 03:42:20,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:42:20,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2025-01-10 03:42:20,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 03:42:20,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918056871] [2025-01-10 03:42:20,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:42:20,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 03:42:20,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 03:42:20,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 03:42:20,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:42:20,690 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 03:42:20,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 03:42:20,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 03:42:20,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918056871] [2025-01-10 03:42:20,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918056871] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 03:42:20,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 03:42:20,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 03:42:20,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569207322] [2025-01-10 03:42:20,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 03:42:20,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 03:42:20,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 03:42:20,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 03:42:20,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 03:42:20,828 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2025-01-10 03:42:20,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 03:42:20,854 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2025-01-10 03:42:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 03:42:20,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 [2025-01-10 03:42:20,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 03:42:20,859 INFO L225 Difference]: With dead ends: 22 [2025-01-10 03:42:20,860 INFO L226 Difference]: Without dead ends: 14 [2025-01-10 03:42:20,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 03:42:20,865 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 03:42:20,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 36 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 03:42:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-01-10 03:42:20,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-01-10 03:42:20,890 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) [2025-01-10 03:42:20,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2025-01-10 03:42:20,895 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2025-01-10 03:42:20,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 03:42:20,896 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2025-01-10 03:42:20,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2025-01-10 03:42:20,896 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2025-01-10 03:42:20,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-10 03:42:20,897 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:42:20,897 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:42:20,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 03:42:20,898 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 03:42:20,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:42:20,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1427713972, now seen corresponding path program 1 times [2025-01-10 03:42:20,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 03:42:20,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797447800] [2025-01-10 03:42:20,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:42:20,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 03:42:20,934 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 03:42:20,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 03:42:20,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:42:20,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 03:42:20,952 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 03:42:20,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 03:42:20,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 03:42:20,966 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:42:20,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 03:42:20,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 03:42:20,984 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-10 03:42:20,986 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-01-10 03:42:20,987 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-01-10 03:42:20,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 03:42:20,990 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-10 03:42:21,007 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 03:42:21,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:42:21 BoogieIcfgContainer [2025-01-10 03:42:21,011 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 03:42:21,011 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 03:42:21,011 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 03:42:21,011 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 03:42:21,012 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:42:20" (3/4) ... [2025-01-10 03:42:21,014 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-10 03:42:21,014 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 03:42:21,015 INFO L158 Benchmark]: Toolchain (without parser) took 1939.41ms. Allocated memory is still 201.3MB. Free memory was 152.0MB in the beginning and 142.5MB in the end (delta: 9.5MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2025-01-10 03:42:21,015 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:42:21,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 905.63ms. Allocated memory is still 201.3MB. Free memory was 151.6MB in the beginning and 92.0MB in the end (delta: 59.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-01-10 03:42:21,016 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.79ms. Allocated memory is still 201.3MB. Free memory was 92.0MB in the beginning and 89.5MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 03:42:21,016 INFO L158 Benchmark]: Boogie Preprocessor took 37.52ms. Allocated memory is still 201.3MB. Free memory was 89.5MB in the beginning and 87.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:42:21,016 INFO L158 Benchmark]: RCFGBuilder took 324.64ms. Allocated memory is still 201.3MB. Free memory was 87.8MB in the beginning and 75.5MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 03:42:21,017 INFO L158 Benchmark]: TraceAbstraction took 619.47ms. Allocated memory is still 201.3MB. Free memory was 74.7MB in the beginning and 143.7MB in the end (delta: -69.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:42:21,017 INFO L158 Benchmark]: Witness Printer took 2.96ms. Allocated memory is still 201.3MB. Free memory was 142.6MB in the beginning and 142.5MB in the end (delta: 60.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:42:21,018 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 119.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 905.63ms. Allocated memory is still 201.3MB. Free memory was 151.6MB in the beginning and 92.0MB in the end (delta: 59.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.79ms. Allocated memory is still 201.3MB. Free memory was 92.0MB in the beginning and 89.5MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.52ms. Allocated memory is still 201.3MB. Free memory was 89.5MB in the beginning and 87.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 324.64ms. Allocated memory is still 201.3MB. Free memory was 87.8MB in the beginning and 75.5MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 619.47ms. Allocated memory is still 201.3MB. Free memory was 74.7MB in the beginning and 143.7MB in the end (delta: -69.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.96ms. Allocated memory is still 201.3MB. Free memory was 142.6MB in the beginning and 142.5MB in the end (delta: 60.0kB). 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: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. 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] [L1571] 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) [L1571] 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] [L1572] CALL CWE190_Integer_Overflow__int_fgets_add_01_bad() [L1550] int data; [L1551] data = 0 [L1553] 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] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] 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: 1564]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 36 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 21 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.1s 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 [2025-01-10 03:42:21,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_01_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 4835d71ad10fa33b78c8eb84d9ef1c8b34094f191f978bb908e5c75eb4871d2a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 03:42:22,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 03:42:22,900 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-01-10 03:42:22,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 03:42:22,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 03:42:22,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-01-10 03:42:22,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 03:42:22,930 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 03:42:22,931 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 03:42:22,931 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 03:42:22,932 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 03:42:22,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 03:42:22,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 03:42:22,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 03:42:22,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 03:42:22,932 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 03:42:22,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 03:42:22,932 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 03:42:22,932 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 03:42:22,932 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 03:42:22,932 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 03:42:22,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 03:42:22,933 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:42:22,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 03:42:22,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:42:22,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 03:42:22,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 03:42:22,934 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 03:42:22,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 03:42:22,935 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-10 03:42:22,935 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-10 03:42:22,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 03:42:22,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 03:42:22,935 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 03:42:22,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 03:42:22,935 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 -> 4835d71ad10fa33b78c8eb84d9ef1c8b34094f191f978bb908e5c75eb4871d2a [2025-01-10 03:42:23,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 03:42:23,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 03:42:23,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 03:42:23,192 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 03:42:23,192 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 03:42:23,194 INFO L431 ainManager$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_01_bad.i [2025-01-10 03:42:24,357 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6d5c43443/e7d46441f7284743894deba64fd40819/FLAGce1aed3e5 [2025-01-10 03:42:24,656 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 03:42:24,656 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_01_bad.i [2025-01-10 03:42:24,670 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6d5c43443/e7d46441f7284743894deba64fd40819/FLAGce1aed3e5 [2025-01-10 03:42:24,957 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6d5c43443/e7d46441f7284743894deba64fd40819 [2025-01-10 03:42:24,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 03:42:24,960 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 03:42:24,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 03:42:24,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 03:42:24,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 03:42:24,964 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:42:24" (1/1) ... [2025-01-10 03:42:24,965 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4ca631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:24, skipping insertion in model container [2025-01-10 03:42:24,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 03:42:24" (1/1) ... [2025-01-10 03:42:25,009 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 03:42:25,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 03:42:25,488 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 03:42:25,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 03:42:25,668 INFO L204 MainTranslator]: Completed translation [2025-01-10 03:42:25,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25 WrapperNode [2025-01-10 03:42:25,668 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 03:42:25,669 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 03:42:25,669 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 03:42:25,669 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 03:42:25,673 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,689 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,703 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2025-01-10 03:42:25,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 03:42:25,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 03:42:25,704 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 03:42:25,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 03:42:25,711 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,714 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,736 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]. [2025-01-10 03:42:25,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,745 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,749 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,757 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 03:42:25,758 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 03:42:25,761 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 03:42:25,761 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 03:42:25,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (1/1) ... [2025-01-10 03:42:25,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 03:42:25,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 03:42:25,797 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) [2025-01-10 03:42:25,801 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 [2025-01-10 03:42:25,822 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-01-10 03:42:25,822 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-01-10 03:42:25,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-10 03:42:25,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 03:42:25,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 03:42:25,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 03:42:26,068 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 03:42:26,069 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 03:42:26,171 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2025-01-10 03:42:26,172 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 03:42:26,179 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 03:42:26,179 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-10 03:42:26,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:42:26 BoogieIcfgContainer [2025-01-10 03:42:26,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 03:42:26,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 03:42:26,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 03:42:26,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 03:42:26,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 03:42:24" (1/3) ... [2025-01-10 03:42:26,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1af9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:42:26, skipping insertion in model container [2025-01-10 03:42:26,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 03:42:25" (2/3) ... [2025-01-10 03:42:26,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1af9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 03:42:26, skipping insertion in model container [2025-01-10 03:42:26,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:42:26" (3/3) ... [2025-01-10 03:42:26,188 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_01_bad.i [2025-01-10 03:42:26,198 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 03:42:26,200 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_add_01_bad.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-01-10 03:42:26,238 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 03:42:26,249 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;@5eb339a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 03:42:26,249 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-01-10 03:42:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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) [2025-01-10 03:42:26,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-10 03:42:26,255 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:42:26,256 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:42:26,256 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 03:42:26,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:42:26,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2025-01-10 03:42:26,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 03:42:26,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027475534] [2025-01-10 03:42:26,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:42:26,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 03:42:26,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 03:42:26,275 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) [2025-01-10 03:42:26,277 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 [2025-01-10 03:42:26,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 03:42:26,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 03:42:26,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:42:26,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 03:42:26,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-10 03:42:26,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 03:42:26,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 03:42:26,407 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 03:42:26,407 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-10 03:42:26,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027475534] [2025-01-10 03:42:26,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027475534] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 03:42:26,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 03:42:26,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 03:42:26,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566925840] [2025-01-10 03:42:26,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 03:42:26,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-10 03:42:26,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-10 03:42:26,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-10 03:42:26,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-10 03:42:26,428 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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) [2025-01-10 03:42:26,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 03:42:26,480 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2025-01-10 03:42:26,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-10 03:42:26,481 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 [2025-01-10 03:42:26,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 03:42:26,485 INFO L225 Difference]: With dead ends: 22 [2025-01-10 03:42:26,485 INFO L226 Difference]: Without dead ends: 14 [2025-01-10 03:42:26,487 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 [2025-01-10 03:42:26,490 INFO L435 NwaCegarLoop]: 24 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, 24 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 [2025-01-10 03:42:26,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 03:42:26,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-01-10 03:42:26,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-01-10 03:42:26,518 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) [2025-01-10 03:42:26,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2025-01-10 03:42:26,523 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2025-01-10 03:42:26,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 03:42:26,524 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2025-01-10 03:42:26,524 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) [2025-01-10 03:42:26,524 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2025-01-10 03:42:26,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-10 03:42:26,525 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 03:42:26,525 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 03:42:26,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-10 03:42:26,725 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 [2025-01-10 03:42:26,726 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-01-10 03:42:26,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 03:42:26,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1427713972, now seen corresponding path program 1 times [2025-01-10 03:42:26,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-10 03:42:26,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [622953819] [2025-01-10 03:42:26,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 03:42:26,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 03:42:26,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 03:42:26,729 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) [2025-01-10 03:42:26,731 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 [2025-01-10 03:42:26,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 03:42:26,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 03:42:26,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:42:26,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 03:42:26,794 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 03:42:26,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 03:42:26,812 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 03:42:26,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 03:42:26,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 03:42:26,828 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-01-10 03:42:26,828 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-10 03:42:26,829 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-01-10 03:42:26,830 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-01-10 03:42:26,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 03:42:27,030 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 [2025-01-10 03:42:27,033 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-10 03:42:27,050 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-10 03:42:27,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 03:42:27 BoogieIcfgContainer [2025-01-10 03:42:27,054 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-10 03:42:27,055 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-10 03:42:27,055 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-10 03:42:27,055 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-10 03:42:27,056 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 03:42:26" (3/4) ... [2025-01-10 03:42:27,058 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-10 03:42:27,058 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-10 03:42:27,059 INFO L158 Benchmark]: Toolchain (without parser) took 2098.72ms. Allocated memory is still 117.4MB. Free memory was 87.4MB in the beginning and 69.7MB in the end (delta: 17.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2025-01-10 03:42:27,059 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:42:27,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 707.82ms. Allocated memory is still 117.4MB. Free memory was 87.2MB in the beginning and 78.6MB in the end (delta: 8.7MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2025-01-10 03:42:27,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.59ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 75.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-10 03:42:27,060 INFO L158 Benchmark]: Boogie Preprocessor took 53.01ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 73.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:42:27,061 INFO L158 Benchmark]: RCFGBuilder took 423.16ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 60.4MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-10 03:42:27,061 INFO L158 Benchmark]: TraceAbstraction took 872.34ms. Allocated memory is still 117.4MB. Free memory was 60.4MB in the beginning and 69.7MB in the end (delta: -9.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:42:27,061 INFO L158 Benchmark]: Witness Printer took 3.10ms. Allocated memory is still 117.4MB. Free memory was 69.7MB in the beginning and 69.7MB in the end (delta: 7.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-10 03:42:27,063 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 is still 61.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 707.82ms. Allocated memory is still 117.4MB. Free memory was 87.2MB in the beginning and 78.6MB in the end (delta: 8.7MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.59ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 75.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.01ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 73.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 423.16ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 60.4MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 872.34ms. Allocated memory is still 117.4MB. Free memory was 60.4MB in the beginning and 69.7MB in the end (delta: -9.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.10ms. Allocated memory is still 117.4MB. Free memory was 69.7MB in the beginning and 69.7MB in the end (delta: 7.0kB). 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: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. 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] [L1571] 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) [L1571] 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] [L1572] CALL CWE190_Integer_Overflow__int_fgets_add_01_bad() [L1550] int data; [L1551] data = 0 [L1553] 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] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] 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: 1564]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 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, 24 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=22occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 56 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 [2025-01-10 03:42:27,078 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