./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_12_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_12_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b91dae833bbe914f6db858614925f2e5ed6a0d4828d26d06ca221fba91b27025 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 11:12:47,407 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 11:12:47,467 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-08 11:12:47,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 11:12:47,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 11:12:47,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 11:12:47,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 11:12:47,498 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 11:12:47,498 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 11:12:47,499 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 11:12:47,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 11:12:47,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 11:12:47,499 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 11:12:47,500 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 11:12:47,500 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 11:12:47,500 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 11:12:47,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 11:12:47,500 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 11:12:47,500 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 11:12:47,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 11:12:47,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 11:12:47,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 11:12:47,501 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 11:12:47,501 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 11:12:47,501 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 11:12:47,501 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 11:12:47,501 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 11:12:47,502 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 11:12:47,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 11:12:47,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 11:12:47,502 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 11:12:47,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 11:12:47,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 11:12:47,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 11:12:47,503 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 11:12:47,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 11:12:47,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 11:12:47,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 11:12:47,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 11:12:47,503 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 11:12:47,503 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 11:12:47,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 11:12:47,503 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b91dae833bbe914f6db858614925f2e5ed6a0d4828d26d06ca221fba91b27025 [2025-02-08 11:12:47,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 11:12:47,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 11:12:47,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 11:12:47,730 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 11:12:47,730 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 11:12:47,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_12_bad.i [2025-02-08 11:12:48,990 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ac4f9d2ba/7856b599ab5c4dbfa29945de234c8f10/FLAG119048d58 [2025-02-08 11:12:49,399 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 11:12:49,402 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_12_bad.i [2025-02-08 11:12:49,425 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ac4f9d2ba/7856b599ab5c4dbfa29945de234c8f10/FLAG119048d58 [2025-02-08 11:12:49,585 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ac4f9d2ba/7856b599ab5c4dbfa29945de234c8f10 [2025-02-08 11:12:49,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 11:12:49,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 11:12:49,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 11:12:49,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 11:12:49,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 11:12:49,594 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 11:12:49" (1/1) ... [2025-02-08 11:12:49,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fed067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:49, skipping insertion in model container [2025-02-08 11:12:49,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 11:12:49" (1/1) ... [2025-02-08 11:12:49,633 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 11:12:50,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 11:12:50,115 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 11:12:50,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 11:12:50,284 INFO L204 MainTranslator]: Completed translation [2025-02-08 11:12:50,285 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50 WrapperNode [2025-02-08 11:12:50,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 11:12:50,286 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 11:12:50,286 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 11:12:50,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 11:12:50,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (1/1) ... [2025-02-08 11:12:50,318 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (1/1) ... [2025-02-08 11:12:50,336 INFO L138 Inliner]: procedures = 498, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2025-02-08 11:12:50,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 11:12:50,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 11:12:50,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 11:12:50,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 11:12:50,344 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (1/1) ... [2025-02-08 11:12:50,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (1/1) ... [2025-02-08 11:12:50,346 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (1/1) ... [2025-02-08 11:12:50,360 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2025-02-08 11:12:50,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (1/1) ... [2025-02-08 11:12:50,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (1/1) ... [2025-02-08 11:12:50,367 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (1/1) ... [2025-02-08 11:12:50,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (1/1) ... [2025-02-08 11:12:50,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (1/1) ... [2025-02-08 11:12:50,374 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (1/1) ... [2025-02-08 11:12:50,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 11:12:50,380 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 11:12:50,380 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 11:12:50,380 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 11:12:50,381 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (1/1) ... [2025-02-08 11:12:50,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 11:12:50,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 11:12:50,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 11:12:50,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 11:12:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2025-02-08 11:12:50,426 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2025-02-08 11:12:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2025-02-08 11:12:50,426 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2025-02-08 11:12:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-08 11:12:50,426 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-08 11:12:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 11:12:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 11:12:50,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 11:12:50,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 11:12:50,549 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 11:12:50,553 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 11:12:50,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1520: havoc #t~nondet87; [2025-02-08 11:12:50,679 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2025-02-08 11:12:50,679 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 11:12:50,686 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 11:12:50,686 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 11:12:50,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 11:12:50 BoogieIcfgContainer [2025-02-08 11:12:50,687 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 11:12:50,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 11:12:50,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 11:12:50,692 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 11:12:50,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 11:12:49" (1/3) ... [2025-02-08 11:12:50,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bed9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 11:12:50, skipping insertion in model container [2025-02-08 11:12:50,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:50" (2/3) ... [2025-02-08 11:12:50,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53bed9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 11:12:50, skipping insertion in model container [2025-02-08 11:12:50,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 11:12:50" (3/3) ... [2025-02-08 11:12:50,695 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_12_bad.i [2025-02-08 11:12:50,711 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 11:12:50,712 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_12_bad.i that has 4 procedures, 41 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-08 11:12:50,747 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 11:12:50,756 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;@7e14d407, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 11:12:50,757 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 11:12:50,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 25 states have (on average 1.36) internal successors, (34), 31 states have internal predecessors, (34), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-08 11:12:50,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-08 11:12:50,763 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 11:12:50,763 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 11:12:50,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 11:12:50,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 11:12:50,767 INFO L85 PathProgramCache]: Analyzing trace with hash -784742052, now seen corresponding path program 1 times [2025-02-08 11:12:50,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 11:12:50,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742533806] [2025-02-08 11:12:50,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 11:12:50,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 11:12:50,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 11:12:50,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 11:12:50,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 11:12:50,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 11:12:51,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 11:12:51,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 11:12:51,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742533806] [2025-02-08 11:12:51,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742533806] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 11:12:51,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 11:12:51,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 11:12:51,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742910118] [2025-02-08 11:12:51,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 11:12:51,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 11:12:51,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 11:12:51,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 11:12:51,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 11:12:51,026 INFO L87 Difference]: Start difference. First operand has 41 states, 25 states have (on average 1.36) internal successors, (34), 31 states have internal predecessors, (34), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 11:12:51,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 11:12:51,066 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2025-02-08 11:12:51,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 11:12:51,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2025-02-08 11:12:51,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 11:12:51,071 INFO L225 Difference]: With dead ends: 63 [2025-02-08 11:12:51,071 INFO L226 Difference]: Without dead ends: 28 [2025-02-08 11:12:51,073 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 11:12:51,076 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 4 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 11:12:51,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 90 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 11:12:51,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-02-08 11:12:51,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2025-02-08 11:12:51,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 22 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-08 11:12:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2025-02-08 11:12:51,111 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 20 [2025-02-08 11:12:51,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 11:12:51,113 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2025-02-08 11:12:51,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 11:12:51,113 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2025-02-08 11:12:51,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-08 11:12:51,114 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 11:12:51,114 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 11:12:51,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 11:12:51,114 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 11:12:51,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 11:12:51,118 INFO L85 PathProgramCache]: Analyzing trace with hash -58855586, now seen corresponding path program 1 times [2025-02-08 11:12:51,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 11:12:51,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113499177] [2025-02-08 11:12:51,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 11:12:51,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 11:12:51,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 11:12:51,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 11:12:51,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 11:12:51,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 11:12:51,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 11:12:51,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 11:12:51,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113499177] [2025-02-08 11:12:51,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113499177] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 11:12:51,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 11:12:51,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 11:12:51,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6873866] [2025-02-08 11:12:51,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 11:12:51,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 11:12:51,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 11:12:51,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 11:12:51,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 11:12:51,264 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 11:12:51,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 11:12:51,284 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2025-02-08 11:12:51,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 11:12:51,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2025-02-08 11:12:51,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 11:12:51,285 INFO L225 Difference]: With dead ends: 28 [2025-02-08 11:12:51,287 INFO L226 Difference]: Without dead ends: 26 [2025-02-08 11:12:51,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 11:12:51,288 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 11:12:51,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 36 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 11:12:51,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-02-08 11:12:51,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-02-08 11:12:51,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-08 11:12:51,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2025-02-08 11:12:51,295 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 22 [2025-02-08 11:12:51,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 11:12:51,295 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2025-02-08 11:12:51,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 11:12:51,296 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2025-02-08 11:12:51,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-08 11:12:51,296 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 11:12:51,296 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 11:12:51,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 11:12:51,296 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 11:12:51,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 11:12:51,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1824523182, now seen corresponding path program 1 times [2025-02-08 11:12:51,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 11:12:51,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862411199] [2025-02-08 11:12:51,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 11:12:51,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 11:12:51,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 11:12:51,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 11:12:51,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 11:12:51,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 11:12:51,325 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 11:12:51,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 11:12:51,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 11:12:51,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 11:12:51,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 11:12:51,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 11:12:51,356 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 11:12:51,357 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-02-08 11:12:51,359 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-02-08 11:12:51,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-02-08 11:12:51,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-02-08 11:12:51,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 11:12:51,363 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 11:12:51,385 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 11:12:51,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 11:12:51 BoogieIcfgContainer [2025-02-08 11:12:51,388 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 11:12:51,389 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 11:12:51,389 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 11:12:51,389 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 11:12:51,390 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 11:12:50" (3/4) ... [2025-02-08 11:12:51,392 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 11:12:51,392 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 11:12:51,393 INFO L158 Benchmark]: Toolchain (without parser) took 1804.77ms. Allocated memory is still 167.8MB. Free memory was 130.8MB in the beginning and 89.7MB in the end (delta: 41.1MB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2025-02-08 11:12:51,394 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 11:12:51,394 INFO L158 Benchmark]: CACSL2BoogieTranslator took 696.03ms. Allocated memory is still 167.8MB. Free memory was 130.4MB in the beginning and 72.7MB in the end (delta: 57.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-08 11:12:51,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.84ms. Allocated memory is still 167.8MB. Free memory was 72.7MB in the beginning and 70.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 11:12:51,395 INFO L158 Benchmark]: Boogie Preprocessor took 42.03ms. Allocated memory is still 167.8MB. Free memory was 70.2MB in the beginning and 68.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 11:12:51,395 INFO L158 Benchmark]: IcfgBuilder took 307.68ms. Allocated memory is still 167.8MB. Free memory was 68.5MB in the beginning and 53.8MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 11:12:51,395 INFO L158 Benchmark]: TraceAbstraction took 699.63ms. Allocated memory is still 167.8MB. Free memory was 53.4MB in the beginning and 89.8MB in the end (delta: -36.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 11:12:51,398 INFO L158 Benchmark]: Witness Printer took 3.14ms. Allocated memory is still 167.8MB. Free memory was 89.8MB in the beginning and 89.7MB in the end (delta: 63.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 11:12:51,399 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 696.03ms. Allocated memory is still 167.8MB. Free memory was 130.4MB in the beginning and 72.7MB in the end (delta: 57.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.84ms. Allocated memory is still 167.8MB. Free memory was 72.7MB in the beginning and 70.2MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.03ms. Allocated memory is still 167.8MB. Free memory was 70.2MB in the beginning and 68.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 307.68ms. Allocated memory is still 167.8MB. Free memory was 68.5MB in the beginning and 53.8MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 699.63ms. Allocated memory is still 167.8MB. Free memory was 53.4MB in the beginning and 89.8MB in the end (delta: -36.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.14ms. Allocated memory is still 167.8MB. Free memory was 89.8MB in the beginning and 89.7MB in the end (delta: 63.5kB). 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: 1573]: 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); [L1595] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={4:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1595] 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] [L1596] CALL CWE190_Integer_Overflow__int_fgets_preinc_12_bad() [L1550] int data; [L1551] data = 0 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] [L1552] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() 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] [L1552] COND TRUE globalReturnsTrueOrFalse() [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1570] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1570] RET globalReturnsTrueOrFalse() 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] [L1570] COND TRUE globalReturnsTrueOrFalse() [L1573] ++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: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1582]: 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 4 procedures, 41 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 126 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 78 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 68 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-08 11:12:51,416 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_12_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b91dae833bbe914f6db858614925f2e5ed6a0d4828d26d06ca221fba91b27025 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 11:12:53,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 11:12:54,037 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-02-08 11:12:54,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 11:12:54,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 11:12:54,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-02-08 11:12:54,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 11:12:54,070 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 11:12:54,070 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 11:12:54,070 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 11:12:54,070 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 11:12:54,070 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 11:12:54,071 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 11:12:54,071 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 11:12:54,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 11:12:54,071 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 11:12:54,071 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 11:12:54,071 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 11:12:54,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 11:12:54,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 11:12:54,071 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 11:12:54,072 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 11:12:54,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 11:12:54,072 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 11:12:54,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 11:12:54,073 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 11:12:54,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 11:12:54,073 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 11:12:54,073 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 11:12:54,073 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 11:12:54,073 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 11:12:54,073 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 11:12:54,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 11:12:54,073 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b91dae833bbe914f6db858614925f2e5ed6a0d4828d26d06ca221fba91b27025 [2025-02-08 11:12:54,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 11:12:54,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 11:12:54,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 11:12:54,303 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 11:12:54,303 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 11:12:54,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_12_bad.i [2025-02-08 11:12:55,573 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2a5f66f9a/4091246b955b44e986294c99f3d122c4/FLAG8f4583ec3 [2025-02-08 11:12:55,851 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 11:12:55,852 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_12_bad.i [2025-02-08 11:12:55,868 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2a5f66f9a/4091246b955b44e986294c99f3d122c4/FLAG8f4583ec3 [2025-02-08 11:12:55,882 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2a5f66f9a/4091246b955b44e986294c99f3d122c4 [2025-02-08 11:12:55,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 11:12:55,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 11:12:55,887 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 11:12:55,887 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 11:12:55,891 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 11:12:55,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 11:12:55" (1/1) ... [2025-02-08 11:12:55,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ac3acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:55, skipping insertion in model container [2025-02-08 11:12:55,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 11:12:55" (1/1) ... [2025-02-08 11:12:55,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 11:12:56,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 11:12:56,493 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 11:12:56,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 11:12:56,742 INFO L204 MainTranslator]: Completed translation [2025-02-08 11:12:56,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56 WrapperNode [2025-02-08 11:12:56,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 11:12:56,743 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 11:12:56,743 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 11:12:56,743 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 11:12:56,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (1/1) ... [2025-02-08 11:12:56,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (1/1) ... [2025-02-08 11:12:56,782 INFO L138 Inliner]: procedures = 503, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2025-02-08 11:12:56,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 11:12:56,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 11:12:56,783 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 11:12:56,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 11:12:56,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (1/1) ... [2025-02-08 11:12:56,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (1/1) ... [2025-02-08 11:12:56,797 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (1/1) ... [2025-02-08 11:12:56,806 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2025-02-08 11:12:56,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (1/1) ... [2025-02-08 11:12:56,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (1/1) ... [2025-02-08 11:12:56,812 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (1/1) ... [2025-02-08 11:12:56,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (1/1) ... [2025-02-08 11:12:56,814 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (1/1) ... [2025-02-08 11:12:56,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (1/1) ... [2025-02-08 11:12:56,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 11:12:56,817 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 11:12:56,817 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 11:12:56,817 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 11:12:56,818 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (1/1) ... [2025-02-08 11:12:56,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 11:12:56,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 11:12:56,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 11:12:56,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 11:12:56,885 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2025-02-08 11:12:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2025-02-08 11:12:56,885 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2025-02-08 11:12:56,885 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2025-02-08 11:12:56,885 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-08 11:12:56,886 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-08 11:12:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-08 11:12:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 11:12:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 11:12:56,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 11:12:56,991 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 11:12:56,992 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 11:12:57,032 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1520: havoc #t~nondet83; [2025-02-08 11:12:57,147 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-02-08 11:12:57,148 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 11:12:57,158 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 11:12:57,159 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 11:12:57,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 11:12:57 BoogieIcfgContainer [2025-02-08 11:12:57,159 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 11:12:57,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 11:12:57,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 11:12:57,165 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 11:12:57,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 11:12:55" (1/3) ... [2025-02-08 11:12:57,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c8a7d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 11:12:57, skipping insertion in model container [2025-02-08 11:12:57,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 11:12:56" (2/3) ... [2025-02-08 11:12:57,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c8a7d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 11:12:57, skipping insertion in model container [2025-02-08 11:12:57,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 11:12:57" (3/3) ... [2025-02-08 11:12:57,168 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_12_bad.i [2025-02-08 11:12:57,189 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 11:12:57,190 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_12_bad.i that has 4 procedures, 39 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2025-02-08 11:12:57,229 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 11:12:57,245 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;@1754e81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 11:12:57,245 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 11:12:57,248 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-02-08 11:12:57,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-08 11:12:57,260 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 11:12:57,261 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 11:12:57,261 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 11:12:57,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 11:12:57,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1371125985, now seen corresponding path program 1 times [2025-02-08 11:12:57,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 11:12:57,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979236904] [2025-02-08 11:12:57,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 11:12:57,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 11:12:57,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 11:12:57,281 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 11:12:57,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 11:12:57,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 11:12:57,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 11:12:57,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 11:12:57,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 11:12:57,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-08 11:12:57,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 11:12:57,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 11:12:57,418 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 11:12:57,418 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 11:12:57,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979236904] [2025-02-08 11:12:57,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979236904] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 11:12:57,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 11:12:57,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 11:12:57,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907521676] [2025-02-08 11:12:57,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 11:12:57,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-08 11:12:57,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 11:12:57,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-08 11:12:57,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 11:12:57,439 INFO L87 Difference]: Start difference. First operand has 39 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 11:12:57,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 11:12:57,449 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2025-02-08 11:12:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-08 11:12:57,450 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2025-02-08 11:12:57,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 11:12:57,454 INFO L225 Difference]: With dead ends: 39 [2025-02-08 11:12:57,454 INFO L226 Difference]: Without dead ends: 24 [2025-02-08 11:12:57,456 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-08 11:12:57,458 INFO L435 NwaCegarLoop]: 46 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, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 11:12:57,458 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 11:12:57,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-02-08 11:12:57,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-02-08 11:12:57,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-08 11:12:57,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2025-02-08 11:12:57,480 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 18 [2025-02-08 11:12:57,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 11:12:57,481 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2025-02-08 11:12:57,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-02-08 11:12:57,481 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2025-02-08 11:12:57,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-02-08 11:12:57,482 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 11:12:57,482 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 11:12:57,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-08 11:12:57,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 11:12:57,685 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 11:12:57,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 11:12:57,686 INFO L85 PathProgramCache]: Analyzing trace with hash -444767441, now seen corresponding path program 1 times [2025-02-08 11:12:57,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 11:12:57,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [270038604] [2025-02-08 11:12:57,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 11:12:57,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 11:12:57,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 11:12:57,690 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 11:12:57,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 11:12:57,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 11:12:57,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 11:12:57,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 11:12:57,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 11:12:57,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 11:12:57,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 11:12:57,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-08 11:12:57,821 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 11:12:57,821 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 11:12:57,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270038604] [2025-02-08 11:12:57,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270038604] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 11:12:57,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 11:12:57,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 11:12:57,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257819868] [2025-02-08 11:12:57,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 11:12:57,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 11:12:57,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 11:12:57,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 11:12:57,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 11:12:57,825 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 11:12:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-08 11:12:57,844 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2025-02-08 11:12:57,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 11:12:57,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2025-02-08 11:12:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-08 11:12:57,846 INFO L225 Difference]: With dead ends: 33 [2025-02-08 11:12:57,846 INFO L226 Difference]: Without dead ends: 24 [2025-02-08 11:12:57,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 11:12:57,847 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-08 11:12:57,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 45 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-08 11:12:57,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2025-02-08 11:12:57,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2025-02-08 11:12:57,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-08 11:12:57,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2025-02-08 11:12:57,853 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 19 [2025-02-08 11:12:57,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-08 11:12:57,853 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2025-02-08 11:12:57,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-02-08 11:12:57,854 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2025-02-08 11:12:57,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-02-08 11:12:57,854 INFO L210 NwaCegarLoop]: Found error trace [2025-02-08 11:12:57,854 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 11:12:57,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-08 11:12:58,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 11:12:58,058 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2025-02-08 11:12:58,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 11:12:58,061 INFO L85 PathProgramCache]: Analyzing trace with hash -723665455, now seen corresponding path program 1 times [2025-02-08 11:12:58,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 11:12:58,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [412389950] [2025-02-08 11:12:58,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 11:12:58,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 11:12:58,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 11:12:58,066 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 11:12:58,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 11:12:58,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 11:12:58,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 11:12:58,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 11:12:58,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 11:12:58,151 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 11:12:58,161 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 11:12:58,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 11:12:58,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 11:12:58,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 11:12:58,194 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-08 11:12:58,194 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 11:12:58,195 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2025-02-08 11:12:58,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2025-02-08 11:12:58,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2025-02-08 11:12:58,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2025-02-08 11:12:58,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 11:12:58,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 11:12:58,400 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-08 11:12:58,414 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 11:12:58,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 11:12:58 BoogieIcfgContainer [2025-02-08 11:12:58,416 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 11:12:58,416 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 11:12:58,416 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 11:12:58,416 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 11:12:58,417 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 11:12:57" (3/4) ... [2025-02-08 11:12:58,419 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-08 11:12:58,419 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 11:12:58,420 INFO L158 Benchmark]: Toolchain (without parser) took 2534.52ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 40.2MB in the end (delta: 15.8MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2025-02-08 11:12:58,420 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 11:12:58,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 856.27ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 49.4MB in the end (delta: 6.7MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2025-02-08 11:12:58,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.54ms. Allocated memory is still 83.9MB. Free memory was 49.4MB in the beginning and 46.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 11:12:58,421 INFO L158 Benchmark]: Boogie Preprocessor took 33.60ms. Allocated memory is still 83.9MB. Free memory was 46.6MB in the beginning and 44.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 11:12:58,421 INFO L158 Benchmark]: IcfgBuilder took 342.34ms. Allocated memory is still 83.9MB. Free memory was 44.7MB in the beginning and 29.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 11:12:58,421 INFO L158 Benchmark]: TraceAbstraction took 1255.06ms. Allocated memory is still 83.9MB. Free memory was 28.4MB in the beginning and 40.7MB in the end (delta: -12.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 11:12:58,422 INFO L158 Benchmark]: Witness Printer took 3.29ms. Allocated memory is still 83.9MB. Free memory was 40.7MB in the beginning and 40.2MB in the end (delta: 449.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 11:12:58,423 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 856.27ms. Allocated memory is still 83.9MB. Free memory was 56.0MB in the beginning and 49.4MB in the end (delta: 6.7MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.54ms. Allocated memory is still 83.9MB. Free memory was 49.4MB in the beginning and 46.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.60ms. Allocated memory is still 83.9MB. Free memory was 46.6MB in the beginning and 44.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 342.34ms. Allocated memory is still 83.9MB. Free memory was 44.7MB in the beginning and 29.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1255.06ms. Allocated memory is still 83.9MB. Free memory was 28.4MB in the beginning and 40.7MB in the end (delta: -12.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.29ms. Allocated memory is still 83.9MB. Free memory was 40.7MB in the beginning and 40.2MB in the end (delta: 449.1kB). 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: 1573]: 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); [L1595] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={4:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1595] 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] [L1596] CALL CWE190_Integer_Overflow__int_fgets_preinc_12_bad() [L1550] int data; [L1551] data = 0 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] [L1552] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() 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] [L1552] COND TRUE globalReturnsTrueOrFalse() [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1570] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1570] RET globalReturnsTrueOrFalse() 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] [L1570] COND TRUE globalReturnsTrueOrFalse() [L1573] ++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: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1582]: 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 4 procedures, 39 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 2, 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, 3 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 71 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 119 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-08 11:12:58,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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