./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e97a33f771d8c05564094634b8fa007d2ead6f7bf8c54a8f950a795e59c44cd4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 05:53:37,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 05:53:37,737 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-17 05:53:37,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 05:53:37,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 05:53:37,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 05:53:37,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 05:53:37,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 05:53:37,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 05:53:37,779 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 05:53:37,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 05:53:37,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 05:53:37,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 05:53:37,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 05:53:37,782 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 05:53:37,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 05:53:37,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 05:53:37,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 05:53:37,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 05:53:37,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 05:53:37,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 05:53:37,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 05:53:37,786 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 05:53:37,786 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 05:53:37,787 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 05:53:37,787 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 05:53:37,787 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 05:53:37,788 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 05:53:37,788 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 05:53:37,788 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 05:53:37,788 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 05:53:37,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 05:53:37,789 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 05:53:37,789 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 05:53:37,789 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 05:53:37,790 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 05:53:37,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 05:53:37,790 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 05:53:37,790 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 05:53:37,791 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 05:53:37,791 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 05:53:37,791 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e97a33f771d8c05564094634b8fa007d2ead6f7bf8c54a8f950a795e59c44cd4 [2024-11-17 05:53:38,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 05:53:38,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 05:53:38,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 05:53:38,085 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 05:53:38,085 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 05:53:38,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i [2024-11-17 05:53:39,539 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 05:53:39,886 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 05:53:39,887 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i [2024-11-17 05:53:39,924 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/383b82102/deaf2425d2c54b27b233e2b71e17ded6/FLAGd9629f429 [2024-11-17 05:53:40,101 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/383b82102/deaf2425d2c54b27b233e2b71e17ded6 [2024-11-17 05:53:40,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 05:53:40,106 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 05:53:40,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 05:53:40,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 05:53:40,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 05:53:40,114 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:53:40" (1/1) ... [2024-11-17 05:53:40,115 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a5ac02a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:40, skipping insertion in model container [2024-11-17 05:53:40,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:53:40" (1/1) ... [2024-11-17 05:53:40,199 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 05:53:41,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 05:53:41,824 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 05:53:41,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 05:53:42,232 INFO L204 MainTranslator]: Completed translation [2024-11-17 05:53:42,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42 WrapperNode [2024-11-17 05:53:42,233 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 05:53:42,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 05:53:42,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 05:53:42,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 05:53:42,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (1/1) ... [2024-11-17 05:53:42,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (1/1) ... [2024-11-17 05:53:42,295 INFO L138 Inliner]: procedures = 936, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2024-11-17 05:53:42,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 05:53:42,296 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 05:53:42,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 05:53:42,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 05:53:42,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (1/1) ... [2024-11-17 05:53:42,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (1/1) ... [2024-11-17 05:53:42,308 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (1/1) ... [2024-11-17 05:53:42,331 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [1, 2]. 67 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 1 writes are split as follows [0, 1]. [2024-11-17 05:53:42,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (1/1) ... [2024-11-17 05:53:42,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (1/1) ... [2024-11-17 05:53:42,345 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (1/1) ... [2024-11-17 05:53:42,345 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (1/1) ... [2024-11-17 05:53:42,351 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (1/1) ... [2024-11-17 05:53:42,353 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (1/1) ... [2024-11-17 05:53:42,356 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 05:53:42,357 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 05:53:42,357 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 05:53:42,357 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 05:53:42,362 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (1/1) ... [2024-11-17 05:53:42,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 05:53:42,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:53:42,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 05:53:42,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 05:53:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 05:53:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 05:53:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 05:53:42,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 05:53:42,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 05:53:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 05:53:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 05:53:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 05:53:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-17 05:53:42,540 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-17 05:53:42,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 05:53:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 05:53:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 05:53:42,721 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 05:53:42,723 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 05:53:42,831 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-17 05:53:42,832 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 05:53:42,843 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 05:53:42,844 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 05:53:42,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 05:53:42 BoogieIcfgContainer [2024-11-17 05:53:42,844 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 05:53:42,846 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 05:53:42,846 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 05:53:42,850 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 05:53:42,850 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 05:53:40" (1/3) ... [2024-11-17 05:53:42,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e87b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:53:42, skipping insertion in model container [2024-11-17 05:53:42,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:42" (2/3) ... [2024-11-17 05:53:42,851 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e87b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:53:42, skipping insertion in model container [2024-11-17 05:53:42,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 05:53:42" (3/3) ... [2024-11-17 05:53:42,853 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_34_bad.i [2024-11-17 05:53:42,868 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 05:53:42,869 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 05:53:42,916 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 05:53:42,922 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;@d7f2f8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 05:53:42,922 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-17 05:53:42,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 05:53:42,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-17 05:53:42,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:53:42,932 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:53:42,932 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-17 05:53:42,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:53:42,937 INFO L85 PathProgramCache]: Analyzing trace with hash 148830865, now seen corresponding path program 1 times [2024-11-17 05:53:42,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:53:42,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221367608] [2024-11-17 05:53:42,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:53:42,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:53:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:53:43,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 05:53:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:53:43,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 05:53:43,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:53:43,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221367608] [2024-11-17 05:53:43,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221367608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:53:43,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:53:43,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 05:53:43,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564465907] [2024-11-17 05:53:43,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:53:43,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 05:53:43,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:53:43,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 05:53:43,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 05:53:43,238 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:53:43,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:53:43,250 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-11-17 05:53:43,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 05:53:43,251 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-17 05:53:43,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:53:43,256 INFO L225 Difference]: With dead ends: 24 [2024-11-17 05:53:43,257 INFO L226 Difference]: Without dead ends: 15 [2024-11-17 05:53:43,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 05:53:43,262 INFO L432 NwaCegarLoop]: 26 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, 26 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 [2024-11-17 05:53:43,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 05:53:43,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-17 05:53:43,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-17 05:53:43,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-17 05:53:43,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-11-17 05:53:43,300 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2024-11-17 05:53:43,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:53:43,302 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-11-17 05:53:43,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-17 05:53:43,302 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-17 05:53:43,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-17 05:53:43,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:53:43,305 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:53:43,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 05:53:43,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-17 05:53:43,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:53:43,310 INFO L85 PathProgramCache]: Analyzing trace with hash 318789500, now seen corresponding path program 1 times [2024-11-17 05:53:43,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:53:43,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686965629] [2024-11-17 05:53:43,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:53:43,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:53:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:53:43,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [632493592] [2024-11-17 05:53:43,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:53:43,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:53:43,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:53:43,393 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:53:43,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 05:53:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 05:53:43,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 05:53:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 05:53:43,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 05:53:43,587 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 05:53:43,589 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-17 05:53:43,591 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-17 05:53:43,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 05:53:43,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:53:43,795 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-17 05:53:43,820 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 05:53:43,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 05:53:43 BoogieIcfgContainer [2024-11-17 05:53:43,823 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 05:53:43,823 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 05:53:43,823 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 05:53:43,823 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 05:53:43,824 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 05:53:42" (3/4) ... [2024-11-17 05:53:43,827 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 05:53:43,828 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 05:53:43,829 INFO L158 Benchmark]: Toolchain (without parser) took 3723.20ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 104.9MB in the beginning and 109.5MB in the end (delta: -4.6MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-11-17 05:53:43,832 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 102.8MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 05:53:43,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2126.75ms. Allocated memory is still 151.0MB. Free memory was 104.9MB in the beginning and 80.3MB in the end (delta: 24.6MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. [2024-11-17 05:53:43,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.66ms. Allocated memory is still 151.0MB. Free memory was 80.3MB in the beginning and 76.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 05:53:43,833 INFO L158 Benchmark]: Boogie Preprocessor took 59.49ms. Allocated memory is still 151.0MB. Free memory was 76.4MB in the beginning and 74.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 05:53:43,833 INFO L158 Benchmark]: IcfgBuilder took 487.46ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 74.0MB in the beginning and 155.7MB in the end (delta: -81.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-17 05:53:43,833 INFO L158 Benchmark]: TraceAbstraction took 976.44ms. Allocated memory is still 205.5MB. Free memory was 154.6MB in the beginning and 110.2MB in the end (delta: 44.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-17 05:53:43,834 INFO L158 Benchmark]: Witness Printer took 5.13ms. Allocated memory is still 205.5MB. Free memory was 110.2MB in the beginning and 109.5MB in the end (delta: 676.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 05:53:43,840 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 102.8MB. Free memory is still 71.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2126.75ms. Allocated memory is still 151.0MB. Free memory was 104.9MB in the beginning and 80.3MB in the end (delta: 24.6MB). Peak memory consumption was 87.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.66ms. Allocated memory is still 151.0MB. Free memory was 80.3MB in the beginning and 76.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.49ms. Allocated memory is still 151.0MB. Free memory was 76.4MB in the beginning and 74.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 487.46ms. Allocated memory was 151.0MB in the beginning and 205.5MB in the end (delta: 54.5MB). Free memory was 74.0MB in the beginning and 155.7MB in the end (delta: -81.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 976.44ms. Allocated memory is still 205.5MB. Free memory was 154.6MB in the beginning and 110.2MB in the end (delta: 44.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 5.13ms. Allocated memory is still 205.5MB. Free memory was 110.2MB in the beginning and 109.5MB in the end (delta: 676.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1857]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1846, overapproximation of large string literal at line 1865, overapproximation of fgets at line 1844. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1865] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1865] 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] [L1866] CALL CWE190_Integer_Overflow__int_fgets_square_34_bad() [L1839] int data; [L1840] CWE190_Integer_Overflow__int_fgets_square_34_unionType myUnion; [L1841] data = 0 [L1843] 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, myUnion={5:0}] [L1844] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1846] data = atoi(inputBuffer) [L1853] myUnion.unionFirst = data [L1855] EXPR myUnion.unionSecond [L1855] int data = myUnion.unionSecond; [L1857] data * 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: 1857]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 26 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-17 05:53:43,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e97a33f771d8c05564094634b8fa007d2ead6f7bf8c54a8f950a795e59c44cd4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 05:53:46,137 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 05:53:46,222 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-17 05:53:46,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 05:53:46,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 05:53:46,231 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-17 05:53:46,260 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 05:53:46,260 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 05:53:46,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 05:53:46,265 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 05:53:46,265 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 05:53:46,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 05:53:46,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 05:53:46,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 05:53:46,267 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 05:53:46,268 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 05:53:46,268 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 05:53:46,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 05:53:46,269 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 05:53:46,269 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 05:53:46,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 05:53:46,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 05:53:46,271 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 05:53:46,277 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-17 05:53:46,277 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 05:53:46,277 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 05:53:46,278 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-17 05:53:46,278 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 05:53:46,278 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 05:53:46,278 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 05:53:46,278 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 05:53:46,279 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 05:53:46,279 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 05:53:46,279 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 05:53:46,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 05:53:46,279 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 05:53:46,280 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 05:53:46,280 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 05:53:46,280 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-17 05:53:46,282 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-17 05:53:46,283 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 05:53:46,283 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 05:53:46,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 05:53:46,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 05:53:46,284 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e97a33f771d8c05564094634b8fa007d2ead6f7bf8c54a8f950a795e59c44cd4 [2024-11-17 05:53:46,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 05:53:46,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 05:53:46,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 05:53:46,646 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 05:53:46,646 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 05:53:46,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i [2024-11-17 05:53:48,263 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 05:53:48,617 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 05:53:48,617 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_34_bad.i [2024-11-17 05:53:48,645 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a105257f7/4e463d1fcc804919911b1bfe240dd487/FLAG2ca4c8f29 [2024-11-17 05:53:48,661 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a105257f7/4e463d1fcc804919911b1bfe240dd487 [2024-11-17 05:53:48,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 05:53:48,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 05:53:48,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 05:53:48,669 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 05:53:48,674 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 05:53:48,675 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:53:48" (1/1) ... [2024-11-17 05:53:48,676 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dfd337f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:48, skipping insertion in model container [2024-11-17 05:53:48,677 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:53:48" (1/1) ... [2024-11-17 05:53:48,744 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 05:53:49,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 05:53:49,932 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 05:53:50,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 05:53:50,237 INFO L204 MainTranslator]: Completed translation [2024-11-17 05:53:50,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50 WrapperNode [2024-11-17 05:53:50,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 05:53:50,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 05:53:50,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 05:53:50,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 05:53:50,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (1/1) ... [2024-11-17 05:53:50,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (1/1) ... [2024-11-17 05:53:50,313 INFO L138 Inliner]: procedures = 941, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-17 05:53:50,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 05:53:50,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 05:53:50,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 05:53:50,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 05:53:50,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (1/1) ... [2024-11-17 05:53:50,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (1/1) ... [2024-11-17 05:53:50,337 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (1/1) ... [2024-11-17 05:53:50,356 INFO L175 MemorySlicer]: Split 3 memory accesses to 2 slices as follows [1, 2]. 67 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1, 0]. The 1 writes are split as follows [0, 1]. [2024-11-17 05:53:50,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (1/1) ... [2024-11-17 05:53:50,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (1/1) ... [2024-11-17 05:53:50,371 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (1/1) ... [2024-11-17 05:53:50,372 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (1/1) ... [2024-11-17 05:53:50,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (1/1) ... [2024-11-17 05:53:50,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (1/1) ... [2024-11-17 05:53:50,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 05:53:50,392 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 05:53:50,392 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 05:53:50,392 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 05:53:50,393 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (1/1) ... [2024-11-17 05:53:50,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 05:53:50,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:53:50,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 05:53:50,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 05:53:50,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 05:53:50,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 05:53:50,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 05:53:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 05:53:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-17 05:53:50,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-17 05:53:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 05:53:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-17 05:53:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-17 05:53:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-17 05:53:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-17 05:53:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-17 05:53:50,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-17 05:53:50,709 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 05:53:50,711 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 05:53:51,713 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-17 05:53:51,713 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 05:53:51,731 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 05:53:51,732 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 05:53:51,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 05:53:51 BoogieIcfgContainer [2024-11-17 05:53:51,733 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 05:53:51,736 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 05:53:51,736 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 05:53:51,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 05:53:51,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 05:53:48" (1/3) ... [2024-11-17 05:53:51,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2638c67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:53:51, skipping insertion in model container [2024-11-17 05:53:51,742 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:53:50" (2/3) ... [2024-11-17 05:53:51,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2638c67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:53:51, skipping insertion in model container [2024-11-17 05:53:51,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 05:53:51" (3/3) ... [2024-11-17 05:53:51,745 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_34_bad.i [2024-11-17 05:53:51,762 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 05:53:51,762 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 05:53:51,843 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 05:53:51,848 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;@4952c05a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 05:53:51,848 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-17 05:53:51,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 05:53:51,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-17 05:53:51,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:53:51,858 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:53:51,859 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-17 05:53:51,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:53:51,863 INFO L85 PathProgramCache]: Analyzing trace with hash 148830865, now seen corresponding path program 1 times [2024-11-17 05:53:51,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 05:53:51,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45732525] [2024-11-17 05:53:51,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:53:51,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 05:53:51,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 05:53:51,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 05:53:51,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-17 05:53:52,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 05:53:52,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 05:53:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 05:53:52,200 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-17 05:53:52,202 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 05:53:52,203 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-17 05:53:52,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-17 05:53:52,223 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-17 05:53:52,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 05:53:52,411 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-17 05:53:52,432 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 05:53:52,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 05:53:52 BoogieIcfgContainer [2024-11-17 05:53:52,434 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 05:53:52,435 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 05:53:52,435 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 05:53:52,435 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 05:53:52,436 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 05:53:51" (3/4) ... [2024-11-17 05:53:52,440 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 05:53:52,441 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 05:53:52,442 INFO L158 Benchmark]: Toolchain (without parser) took 3775.64ms. Allocated memory was 58.7MB in the beginning and 86.0MB in the end (delta: 27.3MB). Free memory was 27.1MB in the beginning and 50.7MB in the end (delta: -23.5MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-11-17 05:53:52,442 INFO L158 Benchmark]: CDTParser took 1.34ms. Allocated memory is still 44.0MB. Free memory was 27.2MB in the beginning and 27.1MB in the end (delta: 70.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 05:53:52,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1570.82ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 27.0MB in the beginning and 40.2MB in the end (delta: -13.2MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2024-11-17 05:53:52,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.29ms. Allocated memory is still 71.3MB. Free memory was 40.2MB in the beginning and 36.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 05:53:52,444 INFO L158 Benchmark]: Boogie Preprocessor took 74.50ms. Allocated memory is still 71.3MB. Free memory was 36.0MB in the beginning and 32.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 05:53:52,444 INFO L158 Benchmark]: IcfgBuilder took 1341.67ms. Allocated memory is still 71.3MB. Free memory was 32.7MB in the beginning and 37.2MB in the end (delta: -4.5MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2024-11-17 05:53:52,445 INFO L158 Benchmark]: TraceAbstraction took 698.41ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 36.8MB in the beginning and 51.2MB in the end (delta: -14.5MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-11-17 05:53:52,445 INFO L158 Benchmark]: Witness Printer took 5.65ms. Allocated memory is still 86.0MB. Free memory was 51.2MB in the beginning and 50.7MB in the end (delta: 563.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 05:53:52,449 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34ms. Allocated memory is still 44.0MB. Free memory was 27.2MB in the beginning and 27.1MB in the end (delta: 70.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1570.82ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 27.0MB in the beginning and 40.2MB in the end (delta: -13.2MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.29ms. Allocated memory is still 71.3MB. Free memory was 40.2MB in the beginning and 36.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.50ms. Allocated memory is still 71.3MB. Free memory was 36.0MB in the beginning and 32.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 1341.67ms. Allocated memory is still 71.3MB. Free memory was 32.7MB in the beginning and 37.2MB in the end (delta: -4.5MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * TraceAbstraction took 698.41ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 36.8MB in the beginning and 51.2MB in the end (delta: -14.5MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Witness Printer took 5.65ms. Allocated memory is still 86.0MB. Free memory was 51.2MB in the beginning and 50.7MB in the end (delta: 563.6kB). Peak memory consumption was 2.1MB. 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: 1857]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1846, overapproximation of large string literal at line 1865, overapproximation of fgets at line 1844. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1865] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1865] 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] [L1866] CALL CWE190_Integer_Overflow__int_fgets_square_34_bad() [L1839] int data; [L1840] CWE190_Integer_Overflow__int_fgets_square_34_unionType myUnion; [L1841] data = 0 [L1843] 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, myUnion={7:0}] [L1844] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1846] data = atoi(inputBuffer) [L1853] myUnion.unionFirst = data [L1855] EXPR myUnion.unionSecond [L1855] int data = myUnion.unionSecond; [L1857] data * 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: 1857]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-17 05:53:52,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample