./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_61_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_preinc_61_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 93036265416429b373ea373de823e91b5bf11a4a7b4ecde3ac54ba80962f9402 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 15:46:07,802 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 15:46:07,875 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-06 15:46:07,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 15:46:07,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 15:46:07,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 15:46:07,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 15:46:07,911 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 15:46:07,912 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 15:46:07,912 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 15:46:07,912 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 15:46:07,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 15:46:07,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 15:46:07,913 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 15:46:07,913 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 15:46:07,914 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 15:46:07,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 15:46:07,914 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 15:46:07,914 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 15:46:07,915 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 15:46:07,915 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 15:46:07,915 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 15:46:07,915 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 15:46:07,915 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 15:46:07,915 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 15:46:07,915 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 15:46:07,916 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 15:46:07,916 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 15:46:07,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 15:46:07,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 15:46:07,916 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 15:46:07,916 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 15:46:07,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 15:46:07,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 15:46:07,917 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 15:46:07,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 15:46:07,917 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 15:46:07,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 15:46:07,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 15:46:07,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 15:46:07,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 15:46:07,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 15:46:07,918 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 -> 93036265416429b373ea373de823e91b5bf11a4a7b4ecde3ac54ba80962f9402 [2025-02-06 15:46:08,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 15:46:08,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 15:46:08,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 15:46:08,235 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 15:46:08,235 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 15:46:08,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_61_bad.i [2025-02-06 15:46:09,484 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c015c110d/7353a23e76544a8fa4b62ce8bc4630ea/FLAG65fd52c81 [2025-02-06 15:46:09,900 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 15:46:09,901 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_61_bad.i [2025-02-06 15:46:09,931 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c015c110d/7353a23e76544a8fa4b62ce8bc4630ea/FLAG65fd52c81 [2025-02-06 15:46:10,076 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c015c110d/7353a23e76544a8fa4b62ce8bc4630ea [2025-02-06 15:46:10,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 15:46:10,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 15:46:10,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 15:46:10,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 15:46:10,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 15:46:10,085 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:46:10" (1/1) ... [2025-02-06 15:46:10,087 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e67adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:10, skipping insertion in model container [2025-02-06 15:46:10,087 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:46:10" (1/1) ... [2025-02-06 15:46:10,137 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 15:46:10,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 15:46:10,865 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 15:46:10,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 15:46:11,067 INFO L204 MainTranslator]: Completed translation [2025-02-06 15:46:11,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11 WrapperNode [2025-02-06 15:46:11,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 15:46:11,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 15:46:11,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 15:46:11,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 15:46:11,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (1/1) ... [2025-02-06 15:46:11,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (1/1) ... [2025-02-06 15:46:11,122 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2025-02-06 15:46:11,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 15:46:11,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 15:46:11,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 15:46:11,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 15:46:11,133 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (1/1) ... [2025-02-06 15:46:11,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (1/1) ... [2025-02-06 15:46:11,141 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (1/1) ... [2025-02-06 15:46:11,160 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2025-02-06 15:46:11,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (1/1) ... [2025-02-06 15:46:11,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (1/1) ... [2025-02-06 15:46:11,165 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (1/1) ... [2025-02-06 15:46:11,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (1/1) ... [2025-02-06 15:46:11,166 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (1/1) ... [2025-02-06 15:46:11,170 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (1/1) ... [2025-02-06 15:46:11,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 15:46:11,172 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 15:46:11,172 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 15:46:11,172 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 15:46:11,173 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (1/1) ... [2025-02-06 15:46:11,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 15:46:11,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:46:11,205 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 15:46:11,210 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 15:46:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-06 15:46:11,229 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-06 15:46:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 15:46:11,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 15:46:11,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 15:46:11,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 15:46:11,360 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 15:46:11,362 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 15:46:11,466 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2025-02-06 15:46:11,466 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 15:46:11,474 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 15:46:11,474 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 15:46:11,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:46:11 BoogieIcfgContainer [2025-02-06 15:46:11,475 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 15:46:11,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 15:46:11,477 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 15:46:11,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 15:46:11,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 03:46:10" (1/3) ... [2025-02-06 15:46:11,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f238136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:46:11, skipping insertion in model container [2025-02-06 15:46:11,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:11" (2/3) ... [2025-02-06 15:46:11,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f238136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:46:11, skipping insertion in model container [2025-02-06 15:46:11,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:46:11" (3/3) ... [2025-02-06 15:46:11,484 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_61_bad.i [2025-02-06 15:46:11,498 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 15:46:11,500 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_61_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 15:46:11,541 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 15:46:11,552 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;@2a476fa4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 15:46:11,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 15:46:11,557 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 15:46:11,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 15:46:11,562 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:46:11,562 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:46:11,563 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:46:11,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:46:11,566 INFO L85 PathProgramCache]: Analyzing trace with hash 318820284, now seen corresponding path program 1 times [2025-02-06 15:46:11,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 15:46:11,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563357158] [2025-02-06 15:46:11,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:46:11,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 15:46:11,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 15:46:11,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 15:46:11,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:46:11,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 15:46:11,839 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 15:46:11,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 15:46:11,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563357158] [2025-02-06 15:46:11,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563357158] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 15:46:11,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 15:46:11,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 15:46:11,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639770548] [2025-02-06 15:46:11,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 15:46:11,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 15:46:11,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 15:46:11,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 15:46:11,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 15:46:11,865 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 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 15:46:11,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 15:46:11,886 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2025-02-06 15:46:11,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 15:46:11,889 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2025-02-06 15:46:11,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 15:46:11,893 INFO L225 Difference]: With dead ends: 23 [2025-02-06 15:46:11,893 INFO L226 Difference]: Without dead ends: 15 [2025-02-06 15:46:11,895 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 [2025-02-06 15:46:11,897 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 15:46:11,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 42 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 15:46:11,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-02-06 15:46:11,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-02-06 15:46:11,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 15:46:11,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2025-02-06 15:46:11,920 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2025-02-06 15:46:11,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 15:46:11,922 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2025-02-06 15:46:11,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 15:46:11,922 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2025-02-06 15:46:11,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-06 15:46:11,923 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:46:11,923 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:46:11,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 15:46:11,923 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:46:11,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:46:11,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1293494192, now seen corresponding path program 1 times [2025-02-06 15:46:11,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 15:46:11,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201744299] [2025-02-06 15:46:11,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:46:11,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 15:46:11,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 15:46:11,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 15:46:11,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:46:11,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 15:46:11,962 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 15:46:11,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 15:46:11,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 15:46:11,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:46:11,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 15:46:12,007 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 15:46:12,008 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 15:46:12,010 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-06 15:46:12,013 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-06 15:46:12,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 15:46:12,017 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 15:46:12,037 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 15:46:12,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 03:46:12 BoogieIcfgContainer [2025-02-06 15:46:12,042 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 15:46:12,043 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 15:46:12,043 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 15:46:12,043 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 15:46:12,044 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:46:11" (3/4) ... [2025-02-06 15:46:12,046 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 15:46:12,046 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 15:46:12,047 INFO L158 Benchmark]: Toolchain (without parser) took 1967.70ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 69.6MB in the end (delta: 40.7MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2025-02-06 15:46:12,047 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:46:12,047 INFO L158 Benchmark]: CACSL2BoogieTranslator took 988.16ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 50.2MB in the end (delta: 60.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-06 15:46:12,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.50ms. Allocated memory is still 142.6MB. Free memory was 50.2MB in the beginning and 47.8MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 15:46:12,048 INFO L158 Benchmark]: Boogie Preprocessor took 46.10ms. Allocated memory is still 142.6MB. Free memory was 47.8MB in the beginning and 46.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:46:12,048 INFO L158 Benchmark]: IcfgBuilder took 302.75ms. Allocated memory is still 142.6MB. Free memory was 46.2MB in the beginning and 102.5MB in the end (delta: -56.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2025-02-06 15:46:12,048 INFO L158 Benchmark]: TraceAbstraction took 565.18ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 69.6MB in the end (delta: 32.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-06 15:46:12,048 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 142.6MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:46:12,049 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 988.16ms. Allocated memory is still 142.6MB. Free memory was 110.3MB in the beginning and 50.2MB in the end (delta: 60.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.50ms. Allocated memory is still 142.6MB. Free memory was 50.2MB in the beginning and 47.8MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.10ms. Allocated memory is still 142.6MB. Free memory was 47.8MB in the beginning and 46.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 302.75ms. Allocated memory is still 142.6MB. Free memory was 46.2MB in the beginning and 102.5MB in the end (delta: -56.3MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * TraceAbstraction took 565.18ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 69.6MB in the end (delta: 32.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 142.6MB. Free memory is still 69.6MB. 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574, overapproximation of fgets at line 1572. 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] [L1563] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] 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] [L1564] CALL CWE190_Integer_Overflow__int_fgets_preinc_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE190_Integer_Overflow__int_fgets_preinc_61b_badSource(data) [L1571] 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] [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1581] return data; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] RET, EXPR CWE190_Integer_Overflow__int_fgets_preinc_61b_badSource(data) [L1553] data = CWE190_Integer_Overflow__int_fgets_preinc_61b_badSource(data) [L1555] ++data 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: 1555]: 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 22 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=23occurred 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, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 15:46:12,066 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_preinc_61_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 93036265416429b373ea373de823e91b5bf11a4a7b4ecde3ac54ba80962f9402 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 15:46:14,267 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 15:46:14,375 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-02-06 15:46:14,386 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 15:46:14,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 15:46:14,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-02-06 15:46:14,412 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 15:46:14,413 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 15:46:14,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 15:46:14,414 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 15:46:14,415 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 15:46:14,415 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 15:46:14,415 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 15:46:14,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 15:46:14,416 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 15:46:14,416 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 15:46:14,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 15:46:14,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 15:46:14,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 15:46:14,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 15:46:14,417 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 15:46:14,417 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 15:46:14,417 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 15:46:14,417 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 15:46:14,417 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 15:46:14,417 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 15:46:14,417 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 15:46:14,417 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 15:46:14,418 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 15:46:14,418 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 15:46:14,418 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 15:46:14,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 15:46:14,418 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 15:46:14,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 15:46:14,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 15:46:14,418 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 15:46:14,418 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 15:46:14,418 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 15:46:14,418 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 15:46:14,418 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 15:46:14,418 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 15:46:14,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 15:46:14,419 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 15:46:14,419 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 15:46:14,419 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 15:46:14,419 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 -> 93036265416429b373ea373de823e91b5bf11a4a7b4ecde3ac54ba80962f9402 [2025-02-06 15:46:14,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 15:46:14,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 15:46:14,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 15:46:14,735 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 15:46:14,735 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 15:46:14,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_61_bad.i [2025-02-06 15:46:16,083 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/703c56b2e/e4d0702feac749478506d164cb7a99fa/FLAG767572973 [2025-02-06 15:46:16,449 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 15:46:16,450 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_61_bad.i [2025-02-06 15:46:16,476 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/703c56b2e/e4d0702feac749478506d164cb7a99fa/FLAG767572973 [2025-02-06 15:46:16,643 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/703c56b2e/e4d0702feac749478506d164cb7a99fa [2025-02-06 15:46:16,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 15:46:16,647 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 15:46:16,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 15:46:16,648 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 15:46:16,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 15:46:16,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:46:16" (1/1) ... [2025-02-06 15:46:16,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d2e3a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:16, skipping insertion in model container [2025-02-06 15:46:16,653 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:46:16" (1/1) ... [2025-02-06 15:46:16,704 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 15:46:17,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 15:46:17,426 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 15:46:17,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 15:46:17,658 INFO L204 MainTranslator]: Completed translation [2025-02-06 15:46:17,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17 WrapperNode [2025-02-06 15:46:17,659 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 15:46:17,660 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 15:46:17,660 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 15:46:17,660 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 15:46:17,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (1/1) ... [2025-02-06 15:46:17,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (1/1) ... [2025-02-06 15:46:17,716 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2025-02-06 15:46:17,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 15:46:17,717 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 15:46:17,718 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 15:46:17,718 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 15:46:17,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (1/1) ... [2025-02-06 15:46:17,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (1/1) ... [2025-02-06 15:46:17,729 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (1/1) ... [2025-02-06 15:46:17,741 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2025-02-06 15:46:17,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (1/1) ... [2025-02-06 15:46:17,741 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (1/1) ... [2025-02-06 15:46:17,749 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (1/1) ... [2025-02-06 15:46:17,749 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (1/1) ... [2025-02-06 15:46:17,751 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (1/1) ... [2025-02-06 15:46:17,752 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (1/1) ... [2025-02-06 15:46:17,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 15:46:17,756 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 15:46:17,756 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 15:46:17,760 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 15:46:17,761 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (1/1) ... [2025-02-06 15:46:17,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 15:46:17,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:46:17,792 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 15:46:17,794 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 15:46:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-06 15:46:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-06 15:46:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 15:46:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 15:46:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 15:46:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 15:46:17,938 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 15:46:17,940 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 15:46:18,062 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2025-02-06 15:46:18,062 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 15:46:18,074 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 15:46:18,074 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 15:46:18,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:46:18 BoogieIcfgContainer [2025-02-06 15:46:18,074 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 15:46:18,077 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 15:46:18,077 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 15:46:18,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 15:46:18,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 03:46:16" (1/3) ... [2025-02-06 15:46:18,082 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf316de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:46:18, skipping insertion in model container [2025-02-06 15:46:18,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:46:17" (2/3) ... [2025-02-06 15:46:18,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf316de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:46:18, skipping insertion in model container [2025-02-06 15:46:18,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:46:18" (3/3) ... [2025-02-06 15:46:18,085 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_61_bad.i [2025-02-06 15:46:18,098 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 15:46:18,100 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_61_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 15:46:18,153 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 15:46:18,163 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;@38bf1a94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 15:46:18,163 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 15:46:18,167 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 15:46:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 15:46:18,173 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:46:18,173 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:46:18,174 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:46:18,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:46:18,179 INFO L85 PathProgramCache]: Analyzing trace with hash 318820284, now seen corresponding path program 1 times [2025-02-06 15:46:18,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 15:46:18,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [680993042] [2025-02-06 15:46:18,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:46:18,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 15:46:18,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:46:18,191 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 15:46:18,192 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 15:46:18,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 15:46:18,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 15:46:18,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:46:18,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 15:46:18,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 15:46:18,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 15:46:18,350 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 15:46:18,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 15:46:18,351 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 15:46:18,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680993042] [2025-02-06 15:46:18,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680993042] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 15:46:18,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 15:46:18,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 15:46:18,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823167275] [2025-02-06 15:46:18,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 15:46:18,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 15:46:18,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 15:46:18,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 15:46:18,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 15:46:18,375 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 10.0) internal successors, (10), 2 states have internal predecessors, (10), 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 15:46:18,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 15:46:18,387 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2025-02-06 15:46:18,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 15:46:18,389 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 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 12 [2025-02-06 15:46:18,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 15:46:18,394 INFO L225 Difference]: With dead ends: 23 [2025-02-06 15:46:18,394 INFO L226 Difference]: Without dead ends: 15 [2025-02-06 15:46:18,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 15:46:18,399 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 15:46:18,402 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 15:46:18,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-02-06 15:46:18,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-02-06 15:46:18,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 15:46:18,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2025-02-06 15:46:18,435 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2025-02-06 15:46:18,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 15:46:18,436 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2025-02-06 15:46:18,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 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 15:46:18,438 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2025-02-06 15:46:18,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-06 15:46:18,439 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:46:18,440 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:46:18,449 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 15:46:18,644 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 15:46:18,644 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:46:18,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:46:18,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1293494192, now seen corresponding path program 1 times [2025-02-06 15:46:18,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 15:46:18,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103540041] [2025-02-06 15:46:18,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:46:18,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 15:46:18,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:46:18,649 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 15:46:18,650 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 15:46:18,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 15:46:18,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 15:46:18,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:46:18,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 15:46:18,739 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 15:46:18,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 15:46:18,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 15:46:18,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:46:18,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 15:46:18,781 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-06 15:46:18,782 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 15:46:18,783 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-06 15:46:18,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-06 15:46:18,794 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 15:46:18,985 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 15:46:18,987 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 15:46:19,007 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 15:46:19,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 03:46:19 BoogieIcfgContainer [2025-02-06 15:46:19,010 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 15:46:19,010 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 15:46:19,010 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 15:46:19,011 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 15:46:19,011 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:46:18" (3/4) ... [2025-02-06 15:46:19,013 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 15:46:19,013 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 15:46:19,014 INFO L158 Benchmark]: Toolchain (without parser) took 2366.90ms. Allocated memory is still 83.9MB. Free memory was 56.1MB in the beginning and 26.9MB in the end (delta: 29.2MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2025-02-06 15:46:19,014 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 62.8MB in the beginning and 62.8MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:46:19,014 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1011.18ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 50.8MB in the end (delta: 5.0MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2025-02-06 15:46:19,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.30ms. Allocated memory is still 83.9MB. Free memory was 50.8MB in the beginning and 48.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:46:19,014 INFO L158 Benchmark]: Boogie Preprocessor took 38.25ms. Allocated memory is still 83.9MB. Free memory was 48.1MB in the beginning and 45.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:46:19,015 INFO L158 Benchmark]: IcfgBuilder took 318.49ms. Allocated memory is still 83.9MB. Free memory was 45.8MB in the beginning and 32.5MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 15:46:19,015 INFO L158 Benchmark]: TraceAbstraction took 932.78ms. Allocated memory is still 83.9MB. Free memory was 32.1MB in the beginning and 27.3MB in the end (delta: 4.8MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2025-02-06 15:46:19,015 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 83.9MB. Free memory was 27.3MB in the beginning and 26.9MB in the end (delta: 420.3kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:46:19,016 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 62.8MB in the beginning and 62.8MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1011.18ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 50.8MB in the end (delta: 5.0MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.30ms. Allocated memory is still 83.9MB. Free memory was 50.8MB in the beginning and 48.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.25ms. Allocated memory is still 83.9MB. Free memory was 48.1MB in the beginning and 45.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 318.49ms. Allocated memory is still 83.9MB. Free memory was 45.8MB in the beginning and 32.5MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 932.78ms. Allocated memory is still 83.9MB. Free memory was 32.1MB in the beginning and 27.3MB in the end (delta: 4.8MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 83.9MB. Free memory was 27.3MB in the beginning and 26.9MB in the end (delta: 420.3kB). 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574, overapproximation of fgets at line 1572. 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] [L1563] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] 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] [L1564] CALL CWE190_Integer_Overflow__int_fgets_preinc_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE190_Integer_Overflow__int_fgets_preinc_61b_badSource(data) [L1571] 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] [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1581] return data; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] RET, EXPR CWE190_Integer_Overflow__int_fgets_preinc_61b_badSource(data) [L1553] data = CWE190_Integer_Overflow__int_fgets_preinc_61b_badSource(data) [L1555] ++data 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: 1555]: 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: 0.9s, 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, 11 GetRequests, 11 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 59 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 15:46:19,039 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