./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed 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/CWE191_Integer_Underflow__int_fgets_multiply_22_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 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 05:18:28,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 05:18:28,755 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-09 05:18:28,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 05:18:28,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 05:18:28,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 05:18:28,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 05:18:28,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 05:18:28,787 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 05:18:28,787 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 05:18:28,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 05:18:28,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 05:18:28,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 05:18:28,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 05:18:28,788 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 05:18:28,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 05:18:28,789 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:18:28,789 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 05:18:28,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 05:18:28,790 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 05:18:28,790 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 05:18:28,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 05:18:28,790 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 -> 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 [2025-03-09 05:18:29,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 05:18:29,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 05:18:29,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 05:18:29,020 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 05:18:29,020 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 05:18:29,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2025-03-09 05:18:30,130 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5f48cf80/a19bbba43c844e188c78d38623af4677/FLAG95f4ef022 [2025-03-09 05:18:30,494 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 05:18:30,495 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2025-03-09 05:18:30,518 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5f48cf80/a19bbba43c844e188c78d38623af4677/FLAG95f4ef022 [2025-03-09 05:18:30,702 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5f48cf80/a19bbba43c844e188c78d38623af4677 [2025-03-09 05:18:30,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 05:18:30,706 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 05:18:30,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 05:18:30,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 05:18:30,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 05:18:30,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:18:30" (1/1) ... [2025-03-09 05:18:30,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cfc6d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:30, skipping insertion in model container [2025-03-09 05:18:30,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:18:30" (1/1) ... [2025-03-09 05:18:30,760 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 05:18:31,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:18:31,252 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 05:18:31,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:18:31,403 INFO L204 MainTranslator]: Completed translation [2025-03-09 05:18:31,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31 WrapperNode [2025-03-09 05:18:31,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 05:18:31,404 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 05:18:31,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 05:18:31,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 05:18:31,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (1/1) ... [2025-03-09 05:18:31,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (1/1) ... [2025-03-09 05:18:31,446 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2025-03-09 05:18:31,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 05:18:31,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 05:18:31,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 05:18:31,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 05:18:31,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (1/1) ... [2025-03-09 05:18:31,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (1/1) ... [2025-03-09 05:18:31,457 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (1/1) ... [2025-03-09 05:18:31,466 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]. [2025-03-09 05:18:31,467 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (1/1) ... [2025-03-09 05:18:31,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (1/1) ... [2025-03-09 05:18:31,470 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (1/1) ... [2025-03-09 05:18:31,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (1/1) ... [2025-03-09 05:18:31,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (1/1) ... [2025-03-09 05:18:31,472 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (1/1) ... [2025-03-09 05:18:31,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 05:18:31,473 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 05:18:31,473 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 05:18:31,473 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 05:18:31,474 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (1/1) ... [2025-03-09 05:18:31,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:18:31,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:18:31,505 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) [2025-03-09 05:18:31,507 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 [2025-03-09 05:18:31,523 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-09 05:18:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-09 05:18:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 05:18:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 05:18:31,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 05:18:31,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 05:18:31,635 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 05:18:31,636 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 05:18:31,753 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2025-03-09 05:18:31,753 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 05:18:31,760 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 05:18:31,761 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 05:18:31,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:18:31 BoogieIcfgContainer [2025-03-09 05:18:31,761 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 05:18:31,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 05:18:31,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 05:18:31,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 05:18:31,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 05:18:30" (1/3) ... [2025-03-09 05:18:31,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438c1798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:18:31, skipping insertion in model container [2025-03-09 05:18:31,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:31" (2/3) ... [2025-03-09 05:18:31,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438c1798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:18:31, skipping insertion in model container [2025-03-09 05:18:31,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:18:31" (3/3) ... [2025-03-09 05:18:31,769 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2025-03-09 05:18:31,780 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 05:18:31,781 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i that has 2 procedures, 25 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-09 05:18:31,821 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 05:18:31,831 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;@1be766cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 05:18:31,831 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-09 05:18:31,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 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) [2025-03-09 05:18:31,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-09 05:18:31,839 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:18:31,839 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:18:31,839 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 05:18:31,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:18:31,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1839059338, now seen corresponding path program 1 times [2025-03-09 05:18:31,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:18:31,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803532877] [2025-03-09 05:18:31,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:18:31,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:18:31,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 05:18:31,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 05:18:31,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:18:31,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 05:18:31,970 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 05:18:31,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 05:18:31,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 05:18:31,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:18:31,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 05:18:32,006 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 05:18:32,009 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 05:18:32,010 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-09 05:18:32,012 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-09 05:18:32,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 05:18:32,016 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-09 05:18:32,035 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 05:18:32,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 05:18:32 BoogieIcfgContainer [2025-03-09 05:18:32,038 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 05:18:32,039 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 05:18:32,039 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 05:18:32,039 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 05:18:32,040 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:18:31" (3/4) ... [2025-03-09 05:18:32,042 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-09 05:18:32,042 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 05:18:32,043 INFO L158 Benchmark]: Toolchain (without parser) took 1337.34ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 111.2MB in the end (delta: 10.6MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2025-03-09 05:18:32,043 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:32,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.05ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 60.7MB in the end (delta: 61.0MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-09 05:18:32,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.07ms. Allocated memory is still 167.8MB. Free memory was 60.7MB in the beginning and 58.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:32,044 INFO L158 Benchmark]: Boogie Preprocessor took 25.90ms. Allocated memory is still 167.8MB. Free memory was 58.4MB in the beginning and 56.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:32,044 INFO L158 Benchmark]: IcfgBuilder took 287.92ms. Allocated memory is still 167.8MB. Free memory was 56.8MB in the beginning and 44.0MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 05:18:32,044 INFO L158 Benchmark]: TraceAbstraction took 275.55ms. Allocated memory is still 167.8MB. Free memory was 43.2MB in the beginning and 111.2MB in the end (delta: -68.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:32,044 INFO L158 Benchmark]: Witness Printer took 2.95ms. Allocated memory is still 167.8MB. Free memory was 111.2MB in the beginning and 111.2MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:32,045 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 697.05ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 60.7MB in the end (delta: 61.0MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.07ms. Allocated memory is still 167.8MB. Free memory was 60.7MB in the beginning and 58.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.90ms. Allocated memory is still 167.8MB. Free memory was 58.4MB in the beginning and 56.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 287.92ms. Allocated memory is still 167.8MB. Free memory was 56.8MB in the beginning and 44.0MB in the end (delta: 12.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 275.55ms. Allocated memory is still 167.8MB. Free memory was 43.2MB in the beginning and 111.2MB in the end (delta: -68.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.95ms. Allocated memory is still 167.8MB. Free memory was 111.2MB in the beginning and 111.2MB 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 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); [L1548] int CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, 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 [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, 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 CWE191_Integer_Underflow__int_fgets_multiply_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal) VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 33 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2025-03-09 05:18:32,058 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/CWE191_Integer_Underflow__int_fgets_multiply_22_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 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 05:18:33,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 05:18:33,891 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-03-09 05:18:33,896 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 05:18:33,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 05:18:33,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-03-09 05:18:33,920 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 05:18:33,921 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 05:18:33,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 05:18:33,921 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 05:18:33,921 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 05:18:33,921 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 05:18:33,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 05:18:33,922 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 05:18:33,934 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 05:18:33,934 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 05:18:33,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 05:18:33,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 05:18:33,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 05:18:33,934 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 05:18:33,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 05:18:33,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 05:18:33,934 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 05:18:33,934 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-09 05:18:33,934 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 05:18:33,935 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:18:33,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 05:18:33,935 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/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 -> 376ee0639763b07c2274d2fee61fe1466a9b43bfbf7a1e08def008915e70d884 [2025-03-09 05:18:34,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 05:18:34,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 05:18:34,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 05:18:34,205 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 05:18:34,205 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 05:18:34,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2025-03-09 05:18:35,379 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45689c98e/ef61c3573e3940d798e4e08eb3cbcfed/FLAG86666af97 [2025-03-09 05:18:36,371 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 05:18:36,375 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2025-03-09 05:18:36,396 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45689c98e/ef61c3573e3940d798e4e08eb3cbcfed/FLAG86666af97 [2025-03-09 05:18:36,415 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45689c98e/ef61c3573e3940d798e4e08eb3cbcfed [2025-03-09 05:18:36,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 05:18:36,419 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 05:18:36,419 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 05:18:36,420 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 05:18:36,422 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 05:18:36,423 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:18:36" (1/1) ... [2025-03-09 05:18:36,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ab8dc6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:36, skipping insertion in model container [2025-03-09 05:18:36,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:18:36" (1/1) ... [2025-03-09 05:18:36,453 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 05:18:36,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:18:36,924 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 05:18:36,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:18:37,070 INFO L204 MainTranslator]: Completed translation [2025-03-09 05:18:37,072 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37 WrapperNode [2025-03-09 05:18:37,072 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 05:18:37,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 05:18:37,073 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 05:18:37,073 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 05:18:37,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (1/1) ... [2025-03-09 05:18:37,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (1/1) ... [2025-03-09 05:18:37,116 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2025-03-09 05:18:37,118 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 05:18:37,119 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 05:18:37,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 05:18:37,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 05:18:37,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (1/1) ... [2025-03-09 05:18:37,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (1/1) ... [2025-03-09 05:18:37,128 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (1/1) ... [2025-03-09 05:18:37,146 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]. [2025-03-09 05:18:37,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (1/1) ... [2025-03-09 05:18:37,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (1/1) ... [2025-03-09 05:18:37,155 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (1/1) ... [2025-03-09 05:18:37,156 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (1/1) ... [2025-03-09 05:18:37,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (1/1) ... [2025-03-09 05:18:37,162 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (1/1) ... [2025-03-09 05:18:37,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 05:18:37,167 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 05:18:37,167 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 05:18:37,167 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 05:18:37,168 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (1/1) ... [2025-03-09 05:18:37,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:18:37,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:18:37,201 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) [2025-03-09 05:18:37,208 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 [2025-03-09 05:18:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-09 05:18:37,231 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-09 05:18:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-09 05:18:37,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 05:18:37,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 05:18:37,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 05:18:37,349 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 05:18:37,351 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 05:18:37,449 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2025-03-09 05:18:37,449 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 05:18:37,459 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 05:18:37,459 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 05:18:37,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:18:37 BoogieIcfgContainer [2025-03-09 05:18:37,459 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 05:18:37,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 05:18:37,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 05:18:37,465 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 05:18:37,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 05:18:36" (1/3) ... [2025-03-09 05:18:37,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d6c6af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:18:37, skipping insertion in model container [2025-03-09 05:18:37,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:37" (2/3) ... [2025-03-09 05:18:37,467 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d6c6af9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:18:37, skipping insertion in model container [2025-03-09 05:18:37,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:18:37" (3/3) ... [2025-03-09 05:18:37,468 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i [2025-03-09 05:18:37,477 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 05:18:37,479 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_22_bad.i that has 2 procedures, 25 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-09 05:18:37,523 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 05:18:37,532 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;@3a4e14c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 05:18:37,533 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-09 05:18:37,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 21 states have internal predecessors, (24), 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) [2025-03-09 05:18:37,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-09 05:18:37,541 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:18:37,541 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:18:37,542 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 05:18:37,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:18:37,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1839059338, now seen corresponding path program 1 times [2025-03-09 05:18:37,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:18:37,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1742832813] [2025-03-09 05:18:37,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:18:37,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:18:37,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:18:37,559 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) [2025-03-09 05:18:37,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 05:18:37,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 05:18:37,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 05:18:37,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:18:37,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 05:18:37,710 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 05:18:37,724 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 05:18:37,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 05:18:37,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:18:37,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 05:18:37,760 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-09 05:18:37,763 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 05:18:37,763 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-09 05:18:37,765 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-09 05:18:37,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 05:18:37,966 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 [2025-03-09 05:18:37,970 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-09 05:18:37,983 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 05:18:37,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 05:18:37 BoogieIcfgContainer [2025-03-09 05:18:37,986 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 05:18:37,986 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 05:18:37,986 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 05:18:37,986 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 05:18:37,987 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:18:37" (3/4) ... [2025-03-09 05:18:37,989 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-09 05:18:37,989 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 05:18:37,990 INFO L158 Benchmark]: Toolchain (without parser) took 1571.39ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 87.9MB in the beginning and 119.0MB in the end (delta: -31.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2025-03-09 05:18:37,990 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:37,990 INFO L158 Benchmark]: CACSL2BoogieTranslator took 653.35ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 67.5MB in the end (delta: 20.3MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2025-03-09 05:18:37,991 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.30ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 65.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:37,991 INFO L158 Benchmark]: Boogie Preprocessor took 47.41ms. Allocated memory is still 117.4MB. Free memory was 65.0MB in the beginning and 62.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:37,991 INFO L158 Benchmark]: IcfgBuilder took 292.39ms. Allocated memory is still 117.4MB. Free memory was 62.5MB in the beginning and 48.8MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 05:18:37,991 INFO L158 Benchmark]: TraceAbstraction took 524.53ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 48.3MB in the beginning and 119.0MB in the end (delta: -70.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:37,992 INFO L158 Benchmark]: Witness Printer took 3.15ms. Allocated memory is still 159.4MB. Free memory was 119.0MB in the beginning and 119.0MB in the end (delta: 35.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:37,993 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 653.35ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 67.5MB in the end (delta: 20.3MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.30ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 65.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.41ms. Allocated memory is still 117.4MB. Free memory was 65.0MB in the beginning and 62.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 292.39ms. Allocated memory is still 117.4MB. Free memory was 62.5MB in the beginning and 48.8MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 524.53ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 48.3MB in the beginning and 119.0MB in the end (delta: -70.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.15ms. Allocated memory is still 159.4MB. Free memory was 119.0MB in the beginning and 119.0MB in the end (delta: 35.5kB). 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 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); [L1548] int CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, 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 [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=0, 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 CWE191_Integer_Underflow__int_fgets_multiply_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal) VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 33 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2025-03-09 05:18:38,007 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample