./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_31_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 fed22ffd278c85afc5c489c1037d11e98892b0215a701d44589e95ef4fa971f5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 12:37:10,506 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 12:37:10,566 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-04 12:37:10,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 12:37:10,570 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 12:37:10,589 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 12:37:10,590 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 12:37:10,590 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 12:37:10,590 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 12:37:10,590 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 12:37:10,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 12:37:10,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 12:37:10,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 12:37:10,592 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 12:37:10,592 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 12:37:10,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 12:37:10,592 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 12:37:10,592 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 12:37:10,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 12:37:10,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 12:37:10,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 12:37:10,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 12:37:10,593 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 12:37:10,593 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 12:37:10,593 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 12:37:10,593 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 12:37:10,593 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 12:37:10,593 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 12:37:10,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 12:37:10,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 12:37:10,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 12:37:10,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 12:37:10,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 12:37:10,594 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 12:37:10,594 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 12:37:10,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 12:37:10,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 12:37:10,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 12:37:10,594 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 12:37:10,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 12:37:10,595 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 12:37:10,595 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 12:37:10,595 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 -> fed22ffd278c85afc5c489c1037d11e98892b0215a701d44589e95ef4fa971f5 [2025-03-04 12:37:10,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 12:37:10,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 12:37:10,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 12:37:10,843 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 12:37:10,843 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 12:37:10,844 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_31_bad.i [2025-03-04 12:37:11,983 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c8bd8e1/400bac8c48104a5a9edf66785a2c017d/FLAG89ae4ed7f [2025-03-04 12:37:12,287 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 12:37:12,287 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_31_bad.i [2025-03-04 12:37:12,307 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c8bd8e1/400bac8c48104a5a9edf66785a2c017d/FLAG89ae4ed7f [2025-03-04 12:37:12,550 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9c8bd8e1/400bac8c48104a5a9edf66785a2c017d [2025-03-04 12:37:12,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 12:37:12,558 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 12:37:12,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 12:37:12,563 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 12:37:12,565 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 12:37:12,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:37:12" (1/1) ... [2025-03-04 12:37:12,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456d88f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:12, skipping insertion in model container [2025-03-04 12:37:12,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:37:12" (1/1) ... [2025-03-04 12:37:12,611 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 12:37:13,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 12:37:13,137 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 12:37:13,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 12:37:13,298 INFO L204 MainTranslator]: Completed translation [2025-03-04 12:37:13,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13 WrapperNode [2025-03-04 12:37:13,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 12:37:13,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 12:37:13,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 12:37:13,300 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 12:37:13,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (1/1) ... [2025-03-04 12:37:13,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (1/1) ... [2025-03-04 12:37:13,357 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2025-03-04 12:37:13,357 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 12:37:13,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 12:37:13,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 12:37:13,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 12:37:13,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (1/1) ... [2025-03-04 12:37:13,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (1/1) ... [2025-03-04 12:37:13,367 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (1/1) ... [2025-03-04 12:37:13,380 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]. [2025-03-04 12:37:13,380 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (1/1) ... [2025-03-04 12:37:13,381 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (1/1) ... [2025-03-04 12:37:13,384 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (1/1) ... [2025-03-04 12:37:13,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (1/1) ... [2025-03-04 12:37:13,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (1/1) ... [2025-03-04 12:37:13,387 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (1/1) ... [2025-03-04 12:37:13,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 12:37:13,389 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 12:37:13,389 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 12:37:13,389 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 12:37:13,390 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (1/1) ... [2025-03-04 12:37:13,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 12:37:13,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 12:37:13,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 12:37:13,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 12:37:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-04 12:37:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-04 12:37:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 12:37:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 12:37:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 12:37:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 12:37:13,557 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 12:37:13,558 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 12:37:13,650 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2025-03-04 12:37:13,650 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 12:37:13,659 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 12:37:13,660 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 12:37:13,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:37:13 BoogieIcfgContainer [2025-03-04 12:37:13,660 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 12:37:13,661 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 12:37:13,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 12:37:13,665 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 12:37:13,665 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 12:37:12" (1/3) ... [2025-03-04 12:37:13,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:37:13, skipping insertion in model container [2025-03-04 12:37:13,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:13" (2/3) ... [2025-03-04 12:37:13,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:37:13, skipping insertion in model container [2025-03-04 12:37:13,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:37:13" (3/3) ... [2025-03-04 12:37:13,667 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_31_bad.i [2025-03-04 12:37:13,677 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 12:37:13,678 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_31_bad.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 12:37:13,716 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 12:37:13,723 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;@3f9a6078, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 12:37:13,724 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-04 12:37:13,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 12:37:13,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-04 12:37:13,731 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 12:37:13,732 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 12:37:13,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-04 12:37:13,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 12:37:13,737 INFO L85 PathProgramCache]: Analyzing trace with hash -841172690, now seen corresponding path program 1 times [2025-03-04 12:37:13,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 12:37:13,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855227212] [2025-03-04 12:37:13,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 12:37:13,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 12:37:13,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 12:37:13,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 12:37:13,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 12:37:13,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 12:37:14,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 12:37:14,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 12:37:14,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855227212] [2025-03-04 12:37:14,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855227212] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 12:37:14,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 12:37:14,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 12:37:14,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354664535] [2025-03-04 12:37:14,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 12:37:14,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 12:37:14,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 12:37:14,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 12:37:14,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 12:37:14,054 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 12:37:14,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 12:37:14,087 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2025-03-04 12:37:14,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 12:37:14,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2025-03-04 12:37:14,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 12:37:14,091 INFO L225 Difference]: With dead ends: 22 [2025-03-04 12:37:14,092 INFO L226 Difference]: Without dead ends: 14 [2025-03-04 12:37:14,093 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 [2025-03-04 12:37:14,095 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 12:37:14,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 52 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 12:37:14,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-03-04 12:37:14,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-03-04 12:37:14,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 12:37:14,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2025-03-04 12:37:14,119 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2025-03-04 12:37:14,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 12:37:14,119 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2025-03-04 12:37:14,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 12:37:14,120 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2025-03-04 12:37:14,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 12:37:14,122 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 12:37:14,122 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 12:37:14,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 12:37:14,122 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-04 12:37:14,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 12:37:14,124 INFO L85 PathProgramCache]: Analyzing trace with hash -306549634, now seen corresponding path program 1 times [2025-03-04 12:37:14,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 12:37:14,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907032898] [2025-03-04 12:37:14,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 12:37:14,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 12:37:14,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 12:37:14,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 12:37:14,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 12:37:14,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 12:37:14,151 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 12:37:14,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 12:37:14,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 12:37:14,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 12:37:14,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 12:37:14,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 12:37:14,185 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 12:37:14,186 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-04 12:37:14,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-04 12:37:14,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 12:37:14,190 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-04 12:37:14,207 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 12:37:14,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:37:14 BoogieIcfgContainer [2025-03-04 12:37:14,211 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 12:37:14,212 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 12:37:14,212 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 12:37:14,212 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 12:37:14,212 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:37:13" (3/4) ... [2025-03-04 12:37:14,214 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 12:37:14,215 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 12:37:14,216 INFO L158 Benchmark]: Toolchain (without parser) took 1658.11ms. Allocated memory is still 142.6MB. Free memory was 109.6MB in the beginning and 64.6MB in the end (delta: 44.9MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2025-03-04 12:37:14,216 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:37:14,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 736.56ms. Allocated memory is still 142.6MB. Free memory was 109.6MB in the beginning and 49.7MB in the end (delta: 59.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-04 12:37:14,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.85ms. Allocated memory is still 142.6MB. Free memory was 49.7MB in the beginning and 47.1MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 12:37:14,217 INFO L158 Benchmark]: Boogie Preprocessor took 30.51ms. Allocated memory is still 142.6MB. Free memory was 47.1MB in the beginning and 45.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:37:14,218 INFO L158 Benchmark]: IcfgBuilder took 270.97ms. Allocated memory is still 142.6MB. Free memory was 45.6MB in the beginning and 101.5MB in the end (delta: -55.9MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2025-03-04 12:37:14,218 INFO L158 Benchmark]: TraceAbstraction took 549.55ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 64.6MB in the end (delta: 36.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-04 12:37:14,219 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 142.6MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:37:14,220 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 736.56ms. Allocated memory is still 142.6MB. Free memory was 109.6MB in the beginning and 49.7MB in the end (delta: 59.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.85ms. Allocated memory is still 142.6MB. Free memory was 49.7MB in the beginning and 47.1MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.51ms. Allocated memory is still 142.6MB. Free memory was 47.1MB in the beginning and 45.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 270.97ms. Allocated memory is still 142.6MB. Free memory was 45.6MB in the beginning and 101.5MB in the end (delta: -55.9MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * TraceAbstraction took 549.55ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 64.6MB in the end (delta: 36.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 142.6MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE190_Integer_Overflow__int_fgets_preinc_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [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] [L1567] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 20 mSDtfsCounter, 14 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=22occurred 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-04 12:37:14,233 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 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_preinc_31_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 fed22ffd278c85afc5c489c1037d11e98892b0215a701d44589e95ef4fa971f5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 12:37:16,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 12:37:16,227 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-03-04 12:37:16,232 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 12:37:16,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 12:37:16,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-03-04 12:37:16,251 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 12:37:16,251 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 12:37:16,252 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 12:37:16,252 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 12:37:16,253 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 12:37:16,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 12:37:16,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 12:37:16,254 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 12:37:16,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 12:37:16,254 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 12:37:16,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 12:37:16,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 12:37:16,254 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 12:37:16,254 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 12:37:16,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 12:37:16,254 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 12:37:16,254 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 12:37:16,254 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-04 12:37:16,254 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 12:37:16,254 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-04 12:37:16,255 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 12:37:16,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 12:37:16,255 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 12:37:16,255 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 12:37:16,256 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 12:37:16,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 12:37:16,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 12:37:16,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 12:37:16,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 12:37:16,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 12:37:16,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 12:37:16,256 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 12:37:16,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 12:37:16,257 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-04 12:37:16,257 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-04 12:37:16,257 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 12:37:16,257 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 12:37:16,257 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 12:37:16,257 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 12:37:16,257 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 -> fed22ffd278c85afc5c489c1037d11e98892b0215a701d44589e95ef4fa971f5 [2025-03-04 12:37:16,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 12:37:16,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 12:37:16,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 12:37:16,524 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 12:37:16,524 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 12:37:16,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_31_bad.i [2025-03-04 12:37:17,698 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c8f98e78/c7887141d3534fc3bc06956ee7821163/FLAG2c783c383 [2025-03-04 12:37:17,978 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 12:37:17,978 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_31_bad.i [2025-03-04 12:37:18,002 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c8f98e78/c7887141d3534fc3bc06956ee7821163/FLAG2c783c383 [2025-03-04 12:37:18,260 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c8f98e78/c7887141d3534fc3bc06956ee7821163 [2025-03-04 12:37:18,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 12:37:18,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 12:37:18,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 12:37:18,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 12:37:18,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 12:37:18,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:18,267 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5186f7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18, skipping insertion in model container [2025-03-04 12:37:18,267 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:18,299 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 12:37:18,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 12:37:18,789 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 12:37:18,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 12:37:18,975 INFO L204 MainTranslator]: Completed translation [2025-03-04 12:37:18,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18 WrapperNode [2025-03-04 12:37:18,976 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 12:37:18,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 12:37:18,976 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 12:37:18,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 12:37:18,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:18,999 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:19,011 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2025-03-04 12:37:19,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 12:37:19,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 12:37:19,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 12:37:19,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 12:37:19,016 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:19,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:19,019 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:19,027 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]. [2025-03-04 12:37:19,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:19,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:19,038 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:19,039 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:19,040 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:19,040 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:19,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 12:37:19,043 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 12:37:19,043 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 12:37:19,043 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 12:37:19,044 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (1/1) ... [2025-03-04 12:37:19,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 12:37:19,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 12:37:19,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 12:37:19,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 12:37:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-04 12:37:19,091 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-04 12:37:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-04 12:37:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 12:37:19,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 12:37:19,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 12:37:19,189 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 12:37:19,190 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 12:37:19,290 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2025-03-04 12:37:19,290 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 12:37:19,297 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 12:37:19,298 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 12:37:19,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:37:19 BoogieIcfgContainer [2025-03-04 12:37:19,299 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 12:37:19,301 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 12:37:19,301 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 12:37:19,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 12:37:19,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 12:37:18" (1/3) ... [2025-03-04 12:37:19,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e74dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:37:19, skipping insertion in model container [2025-03-04 12:37:19,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 12:37:18" (2/3) ... [2025-03-04 12:37:19,307 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e74dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:37:19, skipping insertion in model container [2025-03-04 12:37:19,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:37:19" (3/3) ... [2025-03-04 12:37:19,308 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_31_bad.i [2025-03-04 12:37:19,317 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 12:37:19,319 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_31_bad.i that has 2 procedures, 22 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 12:37:19,358 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 12:37:19,366 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;@5270eaaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 12:37:19,367 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-04 12:37:19,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-04 12:37:19,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-04 12:37:19,374 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 12:37:19,374 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 12:37:19,374 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-04 12:37:19,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 12:37:19,378 INFO L85 PathProgramCache]: Analyzing trace with hash -841172690, now seen corresponding path program 1 times [2025-03-04 12:37:19,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 12:37:19,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1221795821] [2025-03-04 12:37:19,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 12:37:19,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 12:37:19,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 12:37:19,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 12:37:19,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 12:37:19,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 12:37:19,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 12:37:19,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 12:37:19,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 12:37:19,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-04 12:37:19,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 12:37:19,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 12:37:19,515 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 12:37:19,516 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-04 12:37:19,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221795821] [2025-03-04 12:37:19,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221795821] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 12:37:19,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 12:37:19,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 12:37:19,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927369362] [2025-03-04 12:37:19,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 12:37:19,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 12:37:19,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-04 12:37:19,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 12:37:19,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 12:37:19,534 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 12:37:19,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 12:37:19,543 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2025-03-04 12:37:19,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 12:37:19,544 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2025-03-04 12:37:19,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 12:37:19,548 INFO L225 Difference]: With dead ends: 22 [2025-03-04 12:37:19,548 INFO L226 Difference]: Without dead ends: 14 [2025-03-04 12:37:19,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 12:37:19,551 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-04 12:37:19,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-04 12:37:19,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2025-03-04 12:37:19,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2025-03-04 12:37:19,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-04 12:37:19,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2025-03-04 12:37:19,575 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2025-03-04 12:37:19,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 12:37:19,576 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2025-03-04 12:37:19,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-04 12:37:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2025-03-04 12:37:19,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 12:37:19,579 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 12:37:19,579 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 12:37:19,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 12:37:19,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 12:37:19,780 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-04 12:37:19,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 12:37:19,780 INFO L85 PathProgramCache]: Analyzing trace with hash -306549634, now seen corresponding path program 1 times [2025-03-04 12:37:19,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-04 12:37:19,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1930721219] [2025-03-04 12:37:19,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 12:37:19,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 12:37:19,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 12:37:19,783 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 12:37:19,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 12:37:19,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 12:37:19,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 12:37:19,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 12:37:19,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 12:37:19,848 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 12:37:19,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 12:37:19,861 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 12:37:19,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 12:37:19,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 12:37:19,877 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-04 12:37:19,878 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 12:37:19,880 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-04 12:37:19,881 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-04 12:37:19,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 12:37:20,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 12:37:20,084 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-04 12:37:20,103 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 12:37:20,105 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:37:20 BoogieIcfgContainer [2025-03-04 12:37:20,105 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 12:37:20,106 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 12:37:20,106 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 12:37:20,106 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 12:37:20,106 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 12:37:19" (3/4) ... [2025-03-04 12:37:20,108 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-04 12:37:20,109 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 12:37:20,109 INFO L158 Benchmark]: Toolchain (without parser) took 1846.69ms. Allocated memory was 83.9MB in the beginning and 134.2MB in the end (delta: 50.3MB). Free memory was 56.3MB in the beginning and 84.8MB in the end (delta: -28.5MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2025-03-04 12:37:20,110 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 83.9MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:37:20,110 INFO L158 Benchmark]: CACSL2BoogieTranslator took 712.57ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 56.1MB in the beginning and 59.2MB in the end (delta: -3.2MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2025-03-04 12:37:20,110 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.16ms. Allocated memory is still 92.3MB. Free memory was 59.2MB in the beginning and 56.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:37:20,110 INFO L158 Benchmark]: Boogie Preprocessor took 30.53ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 54.4MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:37:20,110 INFO L158 Benchmark]: IcfgBuilder took 255.62ms. Allocated memory is still 92.3MB. Free memory was 54.4MB in the beginning and 41.4MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 12:37:20,111 INFO L158 Benchmark]: TraceAbstraction took 804.54ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 40.9MB in the beginning and 85.3MB in the end (delta: -44.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:37:20,111 INFO L158 Benchmark]: Witness Printer took 3.02ms. Allocated memory is still 134.2MB. Free memory was 85.3MB in the beginning and 84.8MB in the end (delta: 510.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 12:37:20,112 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 83.9MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 712.57ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 56.1MB in the beginning and 59.2MB in the end (delta: -3.2MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.16ms. Allocated memory is still 92.3MB. Free memory was 59.2MB in the beginning and 56.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.53ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 54.4MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 255.62ms. Allocated memory is still 92.3MB. Free memory was 54.4MB in the beginning and 41.4MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 804.54ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 40.9MB in the beginning and 85.3MB in the end (delta: -44.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.02ms. Allocated memory is still 134.2MB. Free memory was 85.3MB in the beginning and 84.8MB in the end (delta: 510.4kB). 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE190_Integer_Overflow__int_fgets_preinc_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [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] [L1567] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 57 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 [2025-03-04 12:37:20,125 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