./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 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_add_68_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 49223ddcf322f8b5fb5185441c735a8895934f3ad680422ffdffaa44d7208c72 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 16:50:33,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 16:50:33,633 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 16:50:33,639 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 16:50:33,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 16:50:33,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 16:50:33,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 16:50:33,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 16:50:33,654 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 16:50:33,654 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 16:50:33,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 16:50:33,655 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 16:50:33,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 16:50:33,655 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 16:50:33,656 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 16:50:33,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 16:50:33,656 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 16:50:33,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 16:50:33,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 16:50:33,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 16:50:33,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 16:50:33,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 16:50:33,656 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 16:50:33,656 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 16:50:33,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 16:50:33,656 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 16:50:33,656 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 16:50:33,656 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:50:33,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 16:50:33,657 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 16:50:33,657 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 -> 49223ddcf322f8b5fb5185441c735a8895934f3ad680422ffdffaa44d7208c72 [2025-03-17 16:50:33,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 16:50:33,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 16:50:33,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 16:50:33,898 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 16:50:33,898 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 16:50:33,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_68_bad.i [2025-03-17 16:50:34,997 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a506d3b19/f1df94d4041247fa9e98a48cf8675754/FLAG6dc8e5147 [2025-03-17 16:50:35,283 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 16:50:35,286 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_68_bad.i [2025-03-17 16:50:35,312 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a506d3b19/f1df94d4041247fa9e98a48cf8675754/FLAG6dc8e5147 [2025-03-17 16:50:35,541 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a506d3b19/f1df94d4041247fa9e98a48cf8675754 [2025-03-17 16:50:35,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 16:50:35,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 16:50:35,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 16:50:35,545 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 16:50:35,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 16:50:35,549 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:50:35" (1/1) ... [2025-03-17 16:50:35,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e6d6cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:35, skipping insertion in model container [2025-03-17 16:50:35,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:50:35" (1/1) ... [2025-03-17 16:50:35,589 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 16:50:36,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:50:36,063 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 16:50:36,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:50:36,217 INFO L204 MainTranslator]: Completed translation [2025-03-17 16:50:36,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36 WrapperNode [2025-03-17 16:50:36,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 16:50:36,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 16:50:36,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 16:50:36,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 16:50:36,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (1/1) ... [2025-03-17 16:50:36,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (1/1) ... [2025-03-17 16:50:36,251 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2025-03-17 16:50:36,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 16:50:36,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 16:50:36,252 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 16:50:36,252 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 16:50:36,257 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (1/1) ... [2025-03-17 16:50:36,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (1/1) ... [2025-03-17 16:50:36,259 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (1/1) ... [2025-03-17 16:50:36,268 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]. [2025-03-17 16:50:36,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (1/1) ... [2025-03-17 16:50:36,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (1/1) ... [2025-03-17 16:50:36,273 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (1/1) ... [2025-03-17 16:50:36,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (1/1) ... [2025-03-17 16:50:36,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (1/1) ... [2025-03-17 16:50:36,275 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (1/1) ... [2025-03-17 16:50:36,277 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 16:50:36,277 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 16:50:36,277 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 16:50:36,277 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 16:50:36,278 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (1/1) ... [2025-03-17 16:50:36,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:50:36,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:50:36,302 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) [2025-03-17 16:50:36,303 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 [2025-03-17 16:50:36,318 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-17 16:50:36,318 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-17 16:50:36,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 16:50:36,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 16:50:36,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 16:50:36,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 16:50:36,399 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 16:50:36,400 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 16:50:36,483 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2025-03-17 16:50:36,483 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 16:50:36,489 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 16:50:36,489 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 16:50:36,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:50:36 BoogieIcfgContainer [2025-03-17 16:50:36,489 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 16:50:36,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 16:50:36,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 16:50:36,494 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 16:50:36,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 04:50:35" (1/3) ... [2025-03-17 16:50:36,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2461039b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:50:36, skipping insertion in model container [2025-03-17 16:50:36,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:36" (2/3) ... [2025-03-17 16:50:36,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2461039b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:50:36, skipping insertion in model container [2025-03-17 16:50:36,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:50:36" (3/3) ... [2025-03-17 16:50:36,496 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_68_bad.i [2025-03-17 16:50:36,506 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 16:50:36,507 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_add_68_bad.i that has 2 procedures, 18 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-17 16:50:36,537 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 16:50:36,545 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;@5f9f3050, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 16:50:36,545 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 16:50:36,548 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 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) [2025-03-17 16:50:36,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-17 16:50:36,552 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:50:36,552 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:50:36,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 16:50:36,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:50:36,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1837684405, now seen corresponding path program 1 times [2025-03-17 16:50:36,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 16:50:36,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322019341] [2025-03-17 16:50:36,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:50:36,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 16:50:36,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 16:50:36,675 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 16:50:36,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:50:36,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:50:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 16:50:36,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 16:50:36,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322019341] [2025-03-17 16:50:36,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322019341] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:50:36,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:50:36,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 16:50:36,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002129268] [2025-03-17 16:50:36,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:50:36,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 16:50:36,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 16:50:36,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 16:50:36,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 16:50:36,887 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-03-17 16:50:36,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:50:36,920 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2025-03-17 16:50:36,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 16:50:36,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 10 [2025-03-17 16:50:36,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:50:36,926 INFO L225 Difference]: With dead ends: 18 [2025-03-17 16:50:36,926 INFO L226 Difference]: Without dead ends: 13 [2025-03-17 16:50:36,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 16:50:36,931 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 16:50:36,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 44 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:50:36,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-03-17 16:50:36,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-03-17 16:50:36,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 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) [2025-03-17 16:50:36,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2025-03-17 16:50:36,967 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2025-03-17 16:50:36,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:50:36,968 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2025-03-17 16:50:36,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2025-03-17 16:50:36,969 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2025-03-17 16:50:36,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 16:50:36,970 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:50:36,970 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:50:36,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 16:50:36,971 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 16:50:36,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:50:36,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1133641683, now seen corresponding path program 1 times [2025-03-17 16:50:36,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 16:50:36,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839440955] [2025-03-17 16:50:36,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:50:36,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 16:50:36,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 16:50:37,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 16:50:37,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:50:37,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 16:50:37,003 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 16:50:37,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 16:50:37,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 16:50:37,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:50:37,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 16:50:37,044 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 16:50:37,047 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 16:50:37,049 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-17 16:50:37,054 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-17 16:50:37,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 16:50:37,056 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-17 16:50:37,075 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 16:50:37,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 04:50:37 BoogieIcfgContainer [2025-03-17 16:50:37,080 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 16:50:37,081 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 16:50:37,081 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 16:50:37,081 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 16:50:37,082 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:50:36" (3/4) ... [2025-03-17 16:50:37,084 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 16:50:37,084 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 16:50:37,085 INFO L158 Benchmark]: Toolchain (without parser) took 1541.33ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 92.7MB in the end (delta: 27.2MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2025-03-17 16:50:37,088 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:50:37,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 672.81ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 61.1MB in the end (delta: 58.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-17 16:50:37,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.19ms. Allocated memory is still 167.8MB. Free memory was 61.1MB in the beginning and 58.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 16:50:37,088 INFO L158 Benchmark]: Boogie Preprocessor took 25.03ms. Allocated memory is still 167.8MB. Free memory was 58.6MB in the beginning and 56.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:50:37,089 INFO L158 Benchmark]: IcfgBuilder took 212.06ms. Allocated memory is still 167.8MB. Free memory was 56.6MB in the beginning and 44.2MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 16:50:37,089 INFO L158 Benchmark]: TraceAbstraction took 589.08ms. Allocated memory is still 167.8MB. Free memory was 43.2MB in the beginning and 92.8MB in the end (delta: -49.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:50:37,089 INFO L158 Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 167.8MB. Free memory was 92.8MB in the beginning and 92.7MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:50:37,092 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 201.3MB. Free memory is still 116.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 672.81ms. Allocated memory is still 167.8MB. Free memory was 120.0MB in the beginning and 61.1MB in the end (delta: 58.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.19ms. Allocated memory is still 167.8MB. Free memory was 61.1MB in the beginning and 58.6MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.03ms. Allocated memory is still 167.8MB. Free memory was 58.6MB in the beginning and 56.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 212.06ms. Allocated memory is still 167.8MB. Free memory was 56.6MB in the beginning and 44.2MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 589.08ms. Allocated memory is still 167.8MB. Free memory was 43.2MB in the beginning and 92.8MB in the end (delta: -49.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.69ms. Allocated memory is still 167.8MB. Free memory was 92.8MB in the beginning and 92.7MB in the end (delta: 33.1kB). 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of fgets at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE190_Integer_Overflow__int_fgets_add_68_badData; [L1573] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE190_Integer_Overflow__int_fgets_add_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE190_Integer_Overflow__int_fgets_add_68_badData = data [L1568] CALL CWE190_Integer_Overflow__int_fgets_add_68b_badSink() [L1583] int data = CWE190_Integer_Overflow__int_fgets_add_68_badData; VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1585] data + 1 VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=2147483647, 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: 1585]: 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, 18 locations, 24 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 16 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 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 [2025-03-17 16:50:37,111 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_add_68_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 49223ddcf322f8b5fb5185441c735a8895934f3ad680422ffdffaa44d7208c72 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 16:50:39,010 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 16:50:39,089 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-03-17 16:50:39,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 16:50:39,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 16:50:39,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-03-17 16:50:39,118 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 16:50:39,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 16:50:39,120 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 16:50:39,120 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 16:50:39,121 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 16:50:39,121 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 16:50:39,121 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 16:50:39,121 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 16:50:39,122 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 16:50:39,122 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 16:50:39,122 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 16:50:39,122 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 16:50:39,122 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 16:50:39,122 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 16:50:39,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 16:50:39,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 16:50:39,123 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 16:50:39,123 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 16:50:39,123 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 16:50:39,123 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 16:50:39,123 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 16:50:39,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 16:50:39,123 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 16:50:39,123 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 16:50:39,123 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:50:39,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 16:50:39,124 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 16:50:39,124 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 -> 49223ddcf322f8b5fb5185441c735a8895934f3ad680422ffdffaa44d7208c72 [2025-03-17 16:50:39,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 16:50:39,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 16:50:39,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 16:50:39,367 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 16:50:39,367 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 16:50:39,369 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_68_bad.i [2025-03-17 16:50:40,533 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/808c1b1af/5c6ab17850504d8ebb9d7ff3855e04e7/FLAGd1b7a4610 [2025-03-17 16:50:40,841 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 16:50:40,842 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_68_bad.i [2025-03-17 16:50:40,867 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/808c1b1af/5c6ab17850504d8ebb9d7ff3855e04e7/FLAGd1b7a4610 [2025-03-17 16:50:40,882 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/808c1b1af/5c6ab17850504d8ebb9d7ff3855e04e7 [2025-03-17 16:50:40,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 16:50:40,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 16:50:40,888 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 16:50:40,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 16:50:40,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 16:50:40,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:50:40" (1/1) ... [2025-03-17 16:50:40,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31770eb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:40, skipping insertion in model container [2025-03-17 16:50:40,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:50:40" (1/1) ... [2025-03-17 16:50:40,932 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 16:50:41,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:50:41,474 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 16:50:41,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:50:41,654 INFO L204 MainTranslator]: Completed translation [2025-03-17 16:50:41,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41 WrapperNode [2025-03-17 16:50:41,655 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 16:50:41,655 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 16:50:41,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 16:50:41,655 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 16:50:41,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (1/1) ... [2025-03-17 16:50:41,677 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (1/1) ... [2025-03-17 16:50:41,692 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2025-03-17 16:50:41,692 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 16:50:41,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 16:50:41,693 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 16:50:41,693 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 16:50:41,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (1/1) ... [2025-03-17 16:50:41,703 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (1/1) ... [2025-03-17 16:50:41,705 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (1/1) ... [2025-03-17 16:50:41,715 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]. [2025-03-17 16:50:41,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (1/1) ... [2025-03-17 16:50:41,716 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (1/1) ... [2025-03-17 16:50:41,719 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (1/1) ... [2025-03-17 16:50:41,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (1/1) ... [2025-03-17 16:50:41,721 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (1/1) ... [2025-03-17 16:50:41,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (1/1) ... [2025-03-17 16:50:41,723 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 16:50:41,724 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 16:50:41,724 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 16:50:41,724 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 16:50:41,726 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (1/1) ... [2025-03-17 16:50:41,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:50:41,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:50:41,747 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) [2025-03-17 16:50:41,749 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 [2025-03-17 16:50:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-17 16:50:41,766 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-17 16:50:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 16:50:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 16:50:41,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 16:50:41,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 16:50:41,870 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 16:50:41,871 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 16:50:41,971 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-03-17 16:50:41,971 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 16:50:41,980 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 16:50:41,980 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 16:50:41,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:50:41 BoogieIcfgContainer [2025-03-17 16:50:41,980 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 16:50:41,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 16:50:41,982 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 16:50:41,985 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 16:50:41,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 04:50:40" (1/3) ... [2025-03-17 16:50:41,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25acaf87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:50:41, skipping insertion in model container [2025-03-17 16:50:41,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:50:41" (2/3) ... [2025-03-17 16:50:41,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25acaf87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:50:41, skipping insertion in model container [2025-03-17 16:50:41,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:50:41" (3/3) ... [2025-03-17 16:50:41,988 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_68_bad.i [2025-03-17 16:50:41,999 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 16:50:42,001 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_add_68_bad.i that has 2 procedures, 18 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-17 16:50:42,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 16:50:42,070 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;@31887bba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 16:50:42,071 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 16:50:42,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 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) [2025-03-17 16:50:42,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-17 16:50:42,080 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:50:42,080 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:50:42,080 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 16:50:42,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:50:42,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1837684405, now seen corresponding path program 1 times [2025-03-17 16:50:42,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:50:42,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [814876992] [2025-03-17 16:50:42,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:50:42,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:50:42,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:50:42,100 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) [2025-03-17 16:50:42,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 16:50:42,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 16:50:42,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 16:50:42,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:50:42,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:50:42,204 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 16:50:42,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 16:50:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 16:50:42,223 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 16:50:42,223 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 16:50:42,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814876992] [2025-03-17 16:50:42,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814876992] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:50:42,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:50:42,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 16:50:42,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749990344] [2025-03-17 16:50:42,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:50:42,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 16:50:42,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 16:50:42,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 16:50:42,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 16:50:42,244 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 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 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-03-17 16:50:42,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:50:42,251 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2025-03-17 16:50:42,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 16:50:42,252 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2025-03-17 16:50:42,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:50:42,256 INFO L225 Difference]: With dead ends: 18 [2025-03-17 16:50:42,256 INFO L226 Difference]: Without dead ends: 13 [2025-03-17 16:50:42,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 16:50:42,261 INFO L435 NwaCegarLoop]: 20 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, 20 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 [2025-03-17 16:50:42,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:50:42,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-03-17 16:50:42,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-03-17 16:50:42,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 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) [2025-03-17 16:50:42,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2025-03-17 16:50:42,287 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2025-03-17 16:50:42,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:50:42,287 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2025-03-17 16:50:42,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-03-17 16:50:42,288 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2025-03-17 16:50:42,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 16:50:42,288 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:50:42,288 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:50:42,296 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 16:50:42,489 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 [2025-03-17 16:50:42,489 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 16:50:42,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:50:42,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1133641683, now seen corresponding path program 1 times [2025-03-17 16:50:42,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:50:42,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330140166] [2025-03-17 16:50:42,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:50:42,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:50:42,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:50:42,492 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) [2025-03-17 16:50:42,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 16:50:42,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 16:50:42,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 16:50:42,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:50:42,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 16:50:42,563 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 16:50:42,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 16:50:42,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 16:50:42,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:50:42,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 16:50:42,603 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-17 16:50:42,603 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 16:50:42,605 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-17 16:50:42,607 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-17 16:50:42,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 16:50:42,807 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 [2025-03-17 16:50:42,810 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-17 16:50:42,830 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 16:50:42,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 04:50:42 BoogieIcfgContainer [2025-03-17 16:50:42,833 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 16:50:42,834 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 16:50:42,834 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 16:50:42,834 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 16:50:42,835 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:50:41" (3/4) ... [2025-03-17 16:50:42,836 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 16:50:42,837 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 16:50:42,837 INFO L158 Benchmark]: Toolchain (without parser) took 1951.45ms. Allocated memory is still 109.1MB. Free memory was 81.4MB in the beginning and 50.8MB in the end (delta: 30.6MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2025-03-17 16:50:42,838 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:50:42,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 766.57ms. Allocated memory is still 109.1MB. Free memory was 81.2MB in the beginning and 60.5MB in the end (delta: 20.8MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2025-03-17 16:50:42,838 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.08ms. Allocated memory is still 109.1MB. Free memory was 60.5MB in the beginning and 57.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:50:42,838 INFO L158 Benchmark]: Boogie Preprocessor took 30.37ms. Allocated memory is still 109.1MB. Free memory was 57.7MB in the beginning and 55.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:50:42,838 INFO L158 Benchmark]: IcfgBuilder took 256.76ms. Allocated memory is still 109.1MB. Free memory was 55.2MB in the beginning and 41.5MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 16:50:42,838 INFO L158 Benchmark]: TraceAbstraction took 851.80ms. Allocated memory is still 109.1MB. Free memory was 40.9MB in the beginning and 51.4MB in the end (delta: -10.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:50:42,838 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 109.1MB. Free memory was 51.4MB in the beginning and 50.8MB in the end (delta: 585.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:50:42,839 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory is still 45.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 766.57ms. Allocated memory is still 109.1MB. Free memory was 81.2MB in the beginning and 60.5MB in the end (delta: 20.8MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.08ms. Allocated memory is still 109.1MB. Free memory was 60.5MB in the beginning and 57.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.37ms. Allocated memory is still 109.1MB. Free memory was 57.7MB in the beginning and 55.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 256.76ms. Allocated memory is still 109.1MB. Free memory was 55.2MB in the beginning and 41.5MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 851.80ms. Allocated memory is still 109.1MB. Free memory was 40.9MB in the beginning and 51.4MB in the end (delta: -10.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 109.1MB. Free memory was 51.4MB in the beginning and 50.8MB in the end (delta: 585.0kB). 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of fgets at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE190_Integer_Overflow__int_fgets_add_68_badData; [L1549] int CWE190_Integer_Overflow__int_fgets_add_68_goodG2BData; [L1550] int CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData; [L1573] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=0, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=0, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE190_Integer_Overflow__int_fgets_add_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=0, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE190_Integer_Overflow__int_fgets_add_68_badData = data [L1568] CALL CWE190_Integer_Overflow__int_fgets_add_68b_badSink() [L1583] int data = CWE190_Integer_Overflow__int_fgets_add_68_badData; VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=2147483647, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1585] data + 1 VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=2147483647, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_68_goodG2BData=0, 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: 1585]: 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, 18 locations, 24 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 20 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, 20 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 60 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 [2025-03-17 16:50:42,851 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