./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_66_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_66_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 f51cd66cc8ab187e6d0f388d838666fcffc43452be13bff3e7ff354d13db6cea --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 12:35:41,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 12:35:41,259 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-04 12:35:41,264 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 12:35:41,265 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 12:35:41,302 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 12:35:41,303 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 12:35:41,303 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 12:35:41,303 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 12:35:41,303 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 12:35:41,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 12:35:41,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 12:35:41,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 12:35:41,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 12:35:41,304 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 12:35:41,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 12:35:41,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 12:35:41,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 12:35:41,305 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 12:35:41,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 12:35:41,305 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 12:35:41,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 12:35:41,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 12:35:41,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 12:35:41,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 12:35:41,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 12:35:41,305 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/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 -> f51cd66cc8ab187e6d0f388d838666fcffc43452be13bff3e7ff354d13db6cea [2025-03-04 12:35:41,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 12:35:41,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 12:35:41,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 12:35:41,551 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 12:35:41,552 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 12:35:41,552 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_66_bad.i [2025-03-04 12:35:42,729 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7880a485e/06282ca56fef4e0b8d26daacdbf4f364/FLAGbdcb2d7ee [2025-03-04 12:35:43,118 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 12:35:43,119 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_66_bad.i [2025-03-04 12:35:43,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7880a485e/06282ca56fef4e0b8d26daacdbf4f364/FLAGbdcb2d7ee [2025-03-04 12:35:43,147 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7880a485e/06282ca56fef4e0b8d26daacdbf4f364 [2025-03-04 12:35:43,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 12:35:43,150 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 12:35:43,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 12:35:43,151 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 12:35:43,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 12:35:43,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd0e579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43, skipping insertion in model container [2025-03-04 12:35:43,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,190 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 12:35:43,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 12:35:43,745 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 12:35:43,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 12:35:43,891 INFO L204 MainTranslator]: Completed translation [2025-03-04 12:35:43,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43 WrapperNode [2025-03-04 12:35:43,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 12:35:43,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 12:35:43,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 12:35:43,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 12:35:43,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,931 INFO L138 Inliner]: procedures = 499, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2025-03-04 12:35:43,931 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 12:35:43,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 12:35:43,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 12:35:43,932 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 12:35:43,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,939 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,948 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [1, 2]. 67 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 1 writes are split as follows [0, 1]. [2025-03-04 12:35:43,949 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,953 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,956 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,956 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 12:35:43,958 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 12:35:43,958 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 12:35:43,958 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 12:35:43,959 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (1/1) ... [2025-03-04 12:35:43,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 12:35:43,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 12:35:43,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 12:35:43,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 12:35:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-04 12:35:44,000 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-04 12:35:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 12:35:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 12:35:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 12:35:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 12:35:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 12:35:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 12:35:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 12:35:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 12:35:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 12:35:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 12:35:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 12:35:44,101 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 12:35:44,102 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 12:35:44,192 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2025-03-04 12:35:44,192 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 12:35:44,198 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 12:35:44,198 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 12:35:44,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:35:44 BoogieIcfgContainer [2025-03-04 12:35:44,198 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 12:35:44,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 12:35:44,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 12:35:44,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 12:35:44,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 12:35:43" (1/3) ... [2025-03-04 12:35:44,205 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d17d6a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:35:44, skipping insertion in model container [2025-03-04 12:35:44,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:43" (2/3) ... [2025-03-04 12:35:44,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d17d6a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:35:44, skipping insertion in model container [2025-03-04 12:35:44,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:35:44" (3/3) ... [2025-03-04 12:35:44,207 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_66_bad.i [2025-03-04 12:35:44,221 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 12:35:44,223 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_multiply_66_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 12:35:44,256 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 12:35:44,264 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;@479e8a53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 12:35:44,265 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-04 12:35:44,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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) [2025-03-04 12:35:44,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 12:35:44,273 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 12:35:44,273 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 12:35:44,273 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-04 12:35:44,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 12:35:44,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1515978405, now seen corresponding path program 1 times [2025-03-04 12:35:44,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 12:35:44,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860427938] [2025-03-04 12:35:44,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 12:35:44,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 12:35:44,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 12:35:44,410 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 12:35:44,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 12:35:44,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 12:35:44,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 12:35:44,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 12:35:44,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860427938] [2025-03-04 12:35:44,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860427938] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 12:35:44,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 12:35:44,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 12:35:44,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539673777] [2025-03-04 12:35:44,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 12:35:44,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 12:35:44,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 12:35:44,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 12:35:44,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 12:35:44,577 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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) [2025-03-04 12:35:44,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 12:35:44,601 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2025-03-04 12:35:44,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 12:35:44,603 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 [2025-03-04 12:35:44,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 12:35:44,607 INFO L225 Difference]: With dead ends: 24 [2025-03-04 12:35:44,607 INFO L226 Difference]: Without dead ends: 15 [2025-03-04 12:35:44,609 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 [2025-03-04 12:35:44,611 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 12:35:44,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 44 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 12:35:44,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-03-04 12:35:44,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-03-04 12:35:44,632 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) [2025-03-04 12:35:44,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2025-03-04 12:35:44,636 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2025-03-04 12:35:44,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 12:35:44,637 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2025-03-04 12:35:44,637 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) [2025-03-04 12:35:44,637 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2025-03-04 12:35:44,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-04 12:35:44,637 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 12:35:44,638 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 12:35:44,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 12:35:44,638 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-04 12:35:44,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 12:35:44,638 INFO L85 PathProgramCache]: Analyzing trace with hash 249309682, now seen corresponding path program 1 times [2025-03-04 12:35:44,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 12:35:44,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424415089] [2025-03-04 12:35:44,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 12:35:44,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 12:35:44,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 12:35:44,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 12:35:44,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 12:35:44,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 12:35:44,687 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 12:35:44,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 12:35:44,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 12:35:44,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 12:35:44,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 12:35:44,717 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 12:35:44,718 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 12:35:44,720 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-04 12:35:44,721 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-04 12:35:44,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 12:35:44,723 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-04 12:35:44,737 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 12:35:44,741 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:35:44 BoogieIcfgContainer [2025-03-04 12:35:44,742 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 12:35:44,742 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 12:35:44,743 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 12:35:44,743 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 12:35:44,743 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:35:44" (3/4) ... [2025-03-04 12:35:44,745 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 12:35:44,745 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 12:35:44,746 INFO L158 Benchmark]: Toolchain (without parser) took 1595.82ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 89.9MB in the end (delta: 29.8MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2025-03-04 12:35:44,747 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 117.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:35:44,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 740.76ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 59.3MB in the end (delta: 60.4MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-04 12:35:44,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.50ms. Allocated memory is still 167.8MB. Free memory was 59.3MB in the beginning and 56.9MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:35:44,747 INFO L158 Benchmark]: Boogie Preprocessor took 25.91ms. Allocated memory is still 167.8MB. Free memory was 56.9MB in the beginning and 55.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:35:44,747 INFO L158 Benchmark]: IcfgBuilder took 240.51ms. Allocated memory is still 167.8MB. Free memory was 55.0MB in the beginning and 42.0MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 12:35:44,748 INFO L158 Benchmark]: TraceAbstraction took 541.42ms. Allocated memory is still 167.8MB. Free memory was 41.3MB in the beginning and 90.8MB in the end (delta: -49.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:35:44,748 INFO L158 Benchmark]: Witness Printer took 2.92ms. Allocated memory is still 167.8MB. Free memory was 90.8MB in the beginning and 89.9MB in the end (delta: 872.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:35:44,749 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 117.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 740.76ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 59.3MB in the end (delta: 60.4MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.50ms. Allocated memory is still 167.8MB. Free memory was 59.3MB in the beginning and 56.9MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.91ms. Allocated memory is still 167.8MB. Free memory was 56.9MB in the beginning and 55.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 240.51ms. Allocated memory is still 167.8MB. Free memory was 55.0MB in the beginning and 42.0MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 541.42ms. Allocated memory is still 167.8MB. Free memory was 41.3MB in the beginning and 90.8MB in the end (delta: -49.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.92ms. Allocated memory is still 167.8MB. Free memory was 90.8MB in the beginning and 89.9MB in the end (delta: 872.5kB). 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: 1581]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); 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_multiply_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={14:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] dataArray[2] = data [L1566] CALL CWE190_Integer_Overflow__int_fgets_multiply_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1579] COND TRUE data > 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1581]: 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, 24 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, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 8 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=24occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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 [2025-03-04 12:35:44,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_66_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 f51cd66cc8ab187e6d0f388d838666fcffc43452be13bff3e7ff354d13db6cea --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 12:35:46,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 12:35:46,721 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-03-04 12:35:46,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 12:35:46,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 12:35:46,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-03-04 12:35:46,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 12:35:46,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 12:35:46,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 12:35:46,746 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 12:35:46,746 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 12:35:46,747 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 12:35:46,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 12:35:46,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 12:35:46,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 12:35:46,747 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 12:35:46,747 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 12:35:46,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 12:35:46,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 12:35:46,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 12:35:46,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 12:35:46,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 12:35:46,747 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 12:35:46,748 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 12:35:46,748 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 12:35:46,748 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 12:35:46,749 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 12:35:46,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 12:35:46,749 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 12:35:46,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 12:35:46,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 12:35:46,750 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/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 -> f51cd66cc8ab187e6d0f388d838666fcffc43452be13bff3e7ff354d13db6cea [2025-03-04 12:35:46,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 12:35:47,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 12:35:47,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 12:35:47,005 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 12:35:47,005 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 12:35:47,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_66_bad.i [2025-03-04 12:35:48,196 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4815630f8/cc6fca67435643d39ed45d4f9b51e65a/FLAG726419b3b [2025-03-04 12:35:48,515 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 12:35:48,516 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_66_bad.i [2025-03-04 12:35:48,540 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4815630f8/cc6fca67435643d39ed45d4f9b51e65a/FLAG726419b3b [2025-03-04 12:35:48,762 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4815630f8/cc6fca67435643d39ed45d4f9b51e65a [2025-03-04 12:35:48,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 12:35:48,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 12:35:48,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 12:35:48,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 12:35:48,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 12:35:48,771 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:35:48" (1/1) ... [2025-03-04 12:35:48,772 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@981d6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:48, skipping insertion in model container [2025-03-04 12:35:48,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:35:48" (1/1) ... [2025-03-04 12:35:48,798 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 12:35:49,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 12:35:49,290 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 12:35:49,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 12:35:49,492 INFO L204 MainTranslator]: Completed translation [2025-03-04 12:35:49,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49 WrapperNode [2025-03-04 12:35:49,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 12:35:49,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 12:35:49,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 12:35:49,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 12:35:49,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (1/1) ... [2025-03-04 12:35:49,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (1/1) ... [2025-03-04 12:35:49,530 INFO L138 Inliner]: procedures = 504, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2025-03-04 12:35:49,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 12:35:49,531 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 12:35:49,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 12:35:49,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 12:35:49,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (1/1) ... [2025-03-04 12:35:49,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (1/1) ... [2025-03-04 12:35:49,541 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (1/1) ... [2025-03-04 12:35:49,556 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [1, 2]. 67 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 1 writes are split as follows [0, 1]. [2025-03-04 12:35:49,556 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (1/1) ... [2025-03-04 12:35:49,556 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (1/1) ... [2025-03-04 12:35:49,563 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (1/1) ... [2025-03-04 12:35:49,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (1/1) ... [2025-03-04 12:35:49,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (1/1) ... [2025-03-04 12:35:49,567 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (1/1) ... [2025-03-04 12:35:49,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 12:35:49,576 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 12:35:49,576 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 12:35:49,577 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 12:35:49,578 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (1/1) ... [2025-03-04 12:35:49,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 12:35:49,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 12:35:49,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 12:35:49,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 12:35:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-04 12:35:49,620 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-04 12:35:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 12:35:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-04 12:35:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-04 12:35:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 12:35:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 12:35:49,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 12:35:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-04 12:35:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-04 12:35:49,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 12:35:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-04 12:35:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-04 12:35:49,741 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 12:35:49,742 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 12:35:49,844 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2025-03-04 12:35:49,844 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 12:35:49,849 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 12:35:49,849 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 12:35:49,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:35:49 BoogieIcfgContainer [2025-03-04 12:35:49,849 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 12:35:49,851 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 12:35:49,851 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 12:35:49,854 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 12:35:49,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 12:35:48" (1/3) ... [2025-03-04 12:35:49,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748f6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:35:49, skipping insertion in model container [2025-03-04 12:35:49,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:35:49" (2/3) ... [2025-03-04 12:35:49,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@748f6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:35:49, skipping insertion in model container [2025-03-04 12:35:49,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:35:49" (3/3) ... [2025-03-04 12:35:49,856 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_66_bad.i [2025-03-04 12:35:49,864 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 12:35:49,865 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_multiply_66_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 12:35:49,898 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 12:35:49,905 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;@47433ba9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 12:35:49,905 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-04 12:35:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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) [2025-03-04 12:35:49,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 12:35:49,910 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 12:35:49,911 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 12:35:49,911 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-04 12:35:49,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 12:35:49,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1515978405, now seen corresponding path program 1 times [2025-03-04 12:35:49,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 12:35:49,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1685971851] [2025-03-04 12:35:49,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 12:35:49,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 12:35:49,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 12:35:49,928 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 12:35:49,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 12:35:50,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 12:35:50,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 12:35:50,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 12:35:50,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 12:35:50,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 12:35:50,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 12:35:50,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 12:35:50,097 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 12:35:50,097 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 12:35:50,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685971851] [2025-03-04 12:35:50,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685971851] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 12:35:50,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 12:35:50,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 12:35:50,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307682017] [2025-03-04 12:35:50,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 12:35:50,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 12:35:50,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 12:35:50,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 12:35:50,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 12:35:50,117 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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) [2025-03-04 12:35:50,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 12:35:50,142 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2025-03-04 12:35:50,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 12:35:50,144 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 [2025-03-04 12:35:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 12:35:50,148 INFO L225 Difference]: With dead ends: 24 [2025-03-04 12:35:50,148 INFO L226 Difference]: Without dead ends: 15 [2025-03-04 12:35:50,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 12:35:50,155 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 12:35:50,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 44 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 12:35:50,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-03-04 12:35:50,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-03-04 12:35:50,174 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) [2025-03-04 12:35:50,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2025-03-04 12:35:50,179 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2025-03-04 12:35:50,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 12:35:50,180 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2025-03-04 12:35:50,180 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) [2025-03-04 12:35:50,180 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2025-03-04 12:35:50,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-04 12:35:50,181 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 12:35:50,181 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 12:35:50,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 12:35:50,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 12:35:50,382 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-04 12:35:50,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 12:35:50,382 INFO L85 PathProgramCache]: Analyzing trace with hash 249309682, now seen corresponding path program 1 times [2025-03-04 12:35:50,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 12:35:50,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1097557792] [2025-03-04 12:35:50,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 12:35:50,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 12:35:50,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 12:35:50,385 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 12:35:50,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 12:35:50,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 12:35:50,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 12:35:50,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 12:35:50,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 12:35:50,484 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 12:35:50,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 12:35:50,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 12:35:50,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 12:35:50,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 12:35:50,530 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-04 12:35:50,531 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 12:35:50,531 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-04 12:35:50,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-04 12:35:50,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 12:35:50,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 12:35:50,736 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-04 12:35:50,756 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 12:35:50,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:35:50 BoogieIcfgContainer [2025-03-04 12:35:50,758 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 12:35:50,758 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 12:35:50,759 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 12:35:50,759 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 12:35:50,759 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:35:49" (3/4) ... [2025-03-04 12:35:50,761 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 12:35:50,761 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 12:35:50,762 INFO L158 Benchmark]: Toolchain (without parser) took 1995.54ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 59.4MB in the end (delta: 29.1MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2025-03-04 12:35:50,762 INFO L158 Benchmark]: CDTParser took 0.91ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:35:50,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 725.46ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 75.6MB in the end (delta: 12.9MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2025-03-04 12:35:50,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.08ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 73.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:35:50,763 INFO L158 Benchmark]: Boogie Preprocessor took 40.79ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 70.3MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 12:35:50,763 INFO L158 Benchmark]: IcfgBuilder took 273.73ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 56.3MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 12:35:50,763 INFO L158 Benchmark]: TraceAbstraction took 906.97ms. Allocated memory is still 117.4MB. Free memory was 55.5MB in the beginning and 59.4MB in the end (delta: -3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:35:50,763 INFO L158 Benchmark]: Witness Printer took 2.92ms. Allocated memory is still 117.4MB. Free memory was 59.4MB in the beginning and 59.4MB in the end (delta: 7.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:35:50,764 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 725.46ms. Allocated memory is still 117.4MB. Free memory was 88.5MB in the beginning and 75.6MB in the end (delta: 12.9MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.08ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 73.3MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.79ms. Allocated memory is still 117.4MB. Free memory was 72.5MB in the beginning and 70.3MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 273.73ms. Allocated memory is still 117.4MB. Free memory was 70.3MB in the beginning and 56.3MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 906.97ms. Allocated memory is still 117.4MB. Free memory was 55.5MB in the beginning and 59.4MB in the end (delta: -3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.92ms. Allocated memory is still 117.4MB. Free memory was 59.4MB in the beginning and 59.4MB 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: 1581]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); 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_multiply_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] dataArray[2] = data [L1566] CALL CWE190_Integer_Overflow__int_fgets_multiply_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1579] COND TRUE data > 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1581]: 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, 24 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, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 78 ConjunctsInSsa, 2 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 [2025-03-04 12:35:50,781 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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