./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_41_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 c95f5d6347e5f9c45550d9011b9270dba888b58cc136399add6dc1759e275081 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 21:37:53,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 21:37:53,937 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-10-24 21:37:53,957 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 21:37:53,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 21:37:53,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 21:37:53,980 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 21:37:53,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 21:37:53,981 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 21:37:53,981 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 21:37:53,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 21:37:53,982 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 21:37:53,982 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 21:37:53,983 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 21:37:53,983 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 21:37:53,983 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 21:37:53,984 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 21:37:53,984 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 21:37:53,984 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 21:37:53,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 21:37:53,985 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 21:37:53,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 21:37:53,986 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 21:37:53,987 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 21:37:53,987 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 21:37:53,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 21:37:53,988 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 21:37:53,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 21:37:53,988 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 21:37:53,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 21:37:53,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 21:37:53,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 21:37:53,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 21:37:53,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 21:37:53,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 21:37:53,990 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 21:37:53,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 21:37:53,991 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 21:37:53,991 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 21:37:53,992 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 21:37:53,992 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 21:37:53,993 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c95f5d6347e5f9c45550d9011b9270dba888b58cc136399add6dc1759e275081 [2024-10-24 21:37:54,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 21:37:54,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 21:37:54,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 21:37:54,286 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 21:37:54,286 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 21:37:54,287 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_41_bad.i [2024-10-24 21:37:55,689 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 21:37:56,040 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 21:37:56,042 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_41_bad.i [2024-10-24 21:37:56,078 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a785e2470/9ea36386a94844e1b3a8bb8f9dabc1ca/FLAGfad1224cb [2024-10-24 21:37:56,269 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a785e2470/9ea36386a94844e1b3a8bb8f9dabc1ca [2024-10-24 21:37:56,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 21:37:56,275 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 21:37:56,276 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 21:37:56,276 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 21:37:56,281 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 21:37:56,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:37:56" (1/1) ... [2024-10-24 21:37:56,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6229545c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:56, skipping insertion in model container [2024-10-24 21:37:56,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:37:56" (1/1) ... [2024-10-24 21:37:56,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 21:37:57,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 21:37:57,425 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 21:37:57,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 21:37:57,878 INFO L204 MainTranslator]: Completed translation [2024-10-24 21:37:57,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57 WrapperNode [2024-10-24 21:37:57,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 21:37:57,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 21:37:57,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 21:37:57,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 21:37:57,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (1/1) ... [2024-10-24 21:37:57,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (1/1) ... [2024-10-24 21:37:57,946 INFO L138 Inliner]: procedures = 937, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2024-10-24 21:37:57,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 21:37:57,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 21:37:57,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 21:37:57,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 21:37:57,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (1/1) ... [2024-10-24 21:37:57,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (1/1) ... [2024-10-24 21:37:57,960 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (1/1) ... [2024-10-24 21:37:57,986 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]. [2024-10-24 21:37:57,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (1/1) ... [2024-10-24 21:37:57,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (1/1) ... [2024-10-24 21:37:57,995 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (1/1) ... [2024-10-24 21:37:57,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (1/1) ... [2024-10-24 21:37:58,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (1/1) ... [2024-10-24 21:37:58,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (1/1) ... [2024-10-24 21:37:58,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 21:37:58,012 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 21:37:58,012 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 21:37:58,012 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 21:37:58,013 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (1/1) ... [2024-10-24 21:37:58,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 21:37:58,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 21:37:58,046 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) [2024-10-24 21:37:58,065 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 [2024-10-24 21:37:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 21:37:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 21:37:58,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 21:37:58,139 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-10-24 21:37:58,150 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-10-24 21:37:58,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 21:37:58,291 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 21:37:58,292 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 21:37:58,386 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-10-24 21:37:58,386 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 21:37:58,434 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 21:37:58,434 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 21:37:58,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:37:58 BoogieIcfgContainer [2024-10-24 21:37:58,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 21:37:58,438 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 21:37:58,438 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 21:37:58,441 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 21:37:58,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:37:56" (1/3) ... [2024-10-24 21:37:58,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279e9ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:37:58, skipping insertion in model container [2024-10-24 21:37:58,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:37:57" (2/3) ... [2024-10-24 21:37:58,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279e9ad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:37:58, skipping insertion in model container [2024-10-24 21:37:58,444 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:37:58" (3/3) ... [2024-10-24 21:37:58,445 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_41_bad.i [2024-10-24 21:37:58,461 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 21:37:58,462 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 21:37:58,524 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 21:37:58,531 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;@25bd0d7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 21:37:58,531 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 21:37:58,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 21:37:58,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-24 21:37:58,543 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 21:37:58,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 21:37:58,544 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-24 21:37:58,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 21:37:58,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1603048705, now seen corresponding path program 1 times [2024-10-24 21:37:58,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 21:37:58,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453955124] [2024-10-24 21:37:58,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 21:37:58,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 21:37:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 21:37:58,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 21:37:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 21:37:58,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 21:37:58,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 21:37:58,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453955124] [2024-10-24 21:37:58,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453955124] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 21:37:58,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 21:37:58,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 21:37:58,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648924736] [2024-10-24 21:37:58,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 21:37:58,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 21:37:58,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 21:37:58,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 21:37:58,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 21:37:58,849 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 21:37:58,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 21:37:58,870 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2024-10-24 21:37:58,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 21:37:58,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-10-24 21:37:58,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 21:37:58,882 INFO L225 Difference]: With dead ends: 18 [2024-10-24 21:37:58,882 INFO L226 Difference]: Without dead ends: 14 [2024-10-24 21:37:58,885 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 [2024-10-24 21:37:58,888 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 21:37:58,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 21:37:58,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-10-24 21:37:58,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2024-10-24 21:37:58,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-24 21:37:58,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2024-10-24 21:37:58,924 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2024-10-24 21:37:58,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 21:37:58,925 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2024-10-24 21:37:58,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 21:37:58,925 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-10-24 21:37:58,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-24 21:37:58,926 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 21:37:58,926 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 21:37:58,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 21:37:58,927 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-24 21:37:58,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 21:37:58,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1845097752, now seen corresponding path program 1 times [2024-10-24 21:37:58,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 21:37:58,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900362509] [2024-10-24 21:37:58,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 21:37:58,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 21:37:58,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 21:37:58,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006869491] [2024-10-24 21:37:58,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 21:37:58,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 21:37:58,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 21:37:58,959 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) [2024-10-24 21:37:58,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 21:37:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 21:37:59,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 21:37:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 21:37:59,099 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 21:37:59,100 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 21:37:59,101 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-10-24 21:37:59,103 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-10-24 21:37:59,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-24 21:37:59,304 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 [2024-10-24 21:37:59,307 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 21:37:59,327 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 21:37:59,330 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:37:59 BoogieIcfgContainer [2024-10-24 21:37:59,330 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 21:37:59,331 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 21:37:59,331 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 21:37:59,331 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 21:37:59,331 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:37:58" (3/4) ... [2024-10-24 21:37:59,332 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 21:37:59,333 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 21:37:59,334 INFO L158 Benchmark]: Toolchain (without parser) took 3059.39ms. Allocated memory was 167.8MB in the beginning and 241.2MB in the end (delta: 73.4MB). Free memory was 105.8MB in the beginning and 153.6MB in the end (delta: -47.8MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2024-10-24 21:37:59,334 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 21:37:59,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1602.62ms. Allocated memory was 167.8MB in the beginning and 241.2MB in the end (delta: 73.4MB). Free memory was 105.3MB in the beginning and 87.3MB in the end (delta: 18.0MB). Peak memory consumption was 102.8MB. Max. memory is 16.1GB. [2024-10-24 21:37:59,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.97ms. Allocated memory is still 241.2MB. Free memory was 87.3MB in the beginning and 84.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 21:37:59,335 INFO L158 Benchmark]: Boogie Preprocessor took 64.03ms. Allocated memory is still 241.2MB. Free memory was 84.2MB in the beginning and 82.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 21:37:59,336 INFO L158 Benchmark]: RCFGBuilder took 424.59ms. Allocated memory is still 241.2MB. Free memory was 82.1MB in the beginning and 188.2MB in the end (delta: -106.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 21:37:59,336 INFO L158 Benchmark]: TraceAbstraction took 891.94ms. Allocated memory is still 241.2MB. Free memory was 188.2MB in the beginning and 153.6MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2024-10-24 21:37:59,337 INFO L158 Benchmark]: Witness Printer took 2.82ms. Allocated memory is still 241.2MB. Free memory is still 153.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 21:37:59,339 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1602.62ms. Allocated memory was 167.8MB in the beginning and 241.2MB in the end (delta: 73.4MB). Free memory was 105.3MB in the beginning and 87.3MB in the end (delta: 18.0MB). Peak memory consumption was 102.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.97ms. Allocated memory is still 241.2MB. Free memory was 87.3MB in the beginning and 84.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.03ms. Allocated memory is still 241.2MB. Free memory was 84.2MB in the beginning and 82.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.59ms. Allocated memory is still 241.2MB. Free memory was 82.1MB in the beginning and 188.2MB in the end (delta: -106.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 891.94ms. Allocated memory is still 241.2MB. Free memory was 188.2MB in the beginning and 153.6MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 2.82ms. Allocated memory is still 241.2MB. Free memory is still 153.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1835]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1847, overapproximation of large string literal at line 1859, overapproximation of fgets at line 1845. 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); [L1859] 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) [L1859] 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] [L1860] CALL CWE190_Integer_Overflow__int_fgets_square_41_bad() [L1841] int data; [L1842] data = 0 [L1844] 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] [L1845] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1847] data = atoi(inputBuffer) [L1854] CALL badSink(data) [L1835] 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: 1835]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 3 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=18occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2024-10-24 21:37:59,368 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/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_41_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 c95f5d6347e5f9c45550d9011b9270dba888b58cc136399add6dc1759e275081 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 21:38:01,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 21:38:01,697 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-10-24 21:38:01,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 21:38:01,705 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 21:38:01,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-10-24 21:38:01,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 21:38:01,737 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 21:38:01,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 21:38:01,738 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 21:38:01,738 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 21:38:01,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 21:38:01,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 21:38:01,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 21:38:01,741 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 21:38:01,741 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 21:38:01,742 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 21:38:01,742 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 21:38:01,742 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 21:38:01,742 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 21:38:01,743 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 21:38:01,743 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 21:38:01,743 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 21:38:01,744 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-24 21:38:01,744 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 21:38:01,744 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 21:38:01,745 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-24 21:38:01,745 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 21:38:01,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 21:38:01,745 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 21:38:01,746 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 21:38:01,746 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 21:38:01,746 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 21:38:01,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 21:38:01,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 21:38:01,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 21:38:01,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 21:38:01,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 21:38:01,748 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-24 21:38:01,748 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-24 21:38:01,749 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 21:38:01,749 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 21:38:01,750 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 21:38:01,750 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 21:38:01,750 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-24 21:38:01,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c95f5d6347e5f9c45550d9011b9270dba888b58cc136399add6dc1759e275081 [2024-10-24 21:38:02,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 21:38:02,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 21:38:02,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 21:38:02,101 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 21:38:02,103 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 21:38:02,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_41_bad.i [2024-10-24 21:38:03,617 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 21:38:03,989 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 21:38:03,991 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_41_bad.i [2024-10-24 21:38:04,021 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e638c1657/8474f4dbccbb4978b5fb598a58fe9906/FLAG812ef468f [2024-10-24 21:38:04,196 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e638c1657/8474f4dbccbb4978b5fb598a58fe9906 [2024-10-24 21:38:04,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 21:38:04,199 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 21:38:04,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 21:38:04,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 21:38:04,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 21:38:04,206 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:38:04" (1/1) ... [2024-10-24 21:38:04,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@330cabc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:04, skipping insertion in model container [2024-10-24 21:38:04,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:38:04" (1/1) ... [2024-10-24 21:38:04,270 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 21:38:05,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 21:38:05,497 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 21:38:05,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 21:38:05,924 INFO L204 MainTranslator]: Completed translation [2024-10-24 21:38:05,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05 WrapperNode [2024-10-24 21:38:05,925 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 21:38:05,926 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 21:38:05,926 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 21:38:05,926 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 21:38:05,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (1/1) ... [2024-10-24 21:38:05,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (1/1) ... [2024-10-24 21:38:05,993 INFO L138 Inliner]: procedures = 942, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2024-10-24 21:38:05,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 21:38:05,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 21:38:05,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 21:38:05,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 21:38:06,003 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (1/1) ... [2024-10-24 21:38:06,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (1/1) ... [2024-10-24 21:38:06,007 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (1/1) ... [2024-10-24 21:38:06,024 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]. [2024-10-24 21:38:06,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (1/1) ... [2024-10-24 21:38:06,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (1/1) ... [2024-10-24 21:38:06,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (1/1) ... [2024-10-24 21:38:06,032 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (1/1) ... [2024-10-24 21:38:06,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (1/1) ... [2024-10-24 21:38:06,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (1/1) ... [2024-10-24 21:38:06,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 21:38:06,041 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 21:38:06,041 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 21:38:06,041 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 21:38:06,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (1/1) ... [2024-10-24 21:38:06,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 21:38:06,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 21:38:06,068 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) [2024-10-24 21:38:06,072 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 [2024-10-24 21:38:06,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 21:38:06,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 21:38:06,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 21:38:06,108 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-10-24 21:38:06,108 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-10-24 21:38:06,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-24 21:38:06,264 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 21:38:06,266 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 21:38:06,768 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-10-24 21:38:06,768 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 21:38:06,807 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 21:38:06,807 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 21:38:06,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:38:06 BoogieIcfgContainer [2024-10-24 21:38:06,809 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 21:38:06,810 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 21:38:06,811 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 21:38:06,814 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 21:38:06,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:38:04" (1/3) ... [2024-10-24 21:38:06,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288bf2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:38:06, skipping insertion in model container [2024-10-24 21:38:06,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:38:05" (2/3) ... [2024-10-24 21:38:06,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@288bf2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:38:06, skipping insertion in model container [2024-10-24 21:38:06,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:38:06" (3/3) ... [2024-10-24 21:38:06,818 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_41_bad.i [2024-10-24 21:38:06,831 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 21:38:06,831 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 21:38:06,880 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 21:38:06,886 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;@5bcf3095, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 21:38:06,886 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 21:38:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 21:38:06,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-24 21:38:06,906 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 21:38:06,907 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 21:38:06,908 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-10-24 21:38:06,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 21:38:06,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1603048705, now seen corresponding path program 1 times [2024-10-24 21:38:06,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-24 21:38:06,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747388199] [2024-10-24 21:38:06,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 21:38:06,928 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 [2024-10-24 21:38:06,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-24 21:38:06,931 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) [2024-10-24 21:38:06,933 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 [2024-10-24 21:38:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 21:38:07,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 21:38:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 21:38:07,146 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-24 21:38:07,148 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 21:38:07,149 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-10-24 21:38:07,151 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-10-24 21:38:07,158 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 [2024-10-24 21:38:07,352 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 [2024-10-24 21:38:07,356 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-24 21:38:07,373 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 21:38:07,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:38:07 BoogieIcfgContainer [2024-10-24 21:38:07,375 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 21:38:07,376 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 21:38:07,376 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 21:38:07,376 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 21:38:07,377 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:38:06" (3/4) ... [2024-10-24 21:38:07,379 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-24 21:38:07,380 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 21:38:07,381 INFO L158 Benchmark]: Toolchain (without parser) took 3182.21ms. Allocated memory was 58.7MB in the beginning and 94.4MB in the end (delta: 35.7MB). Free memory was 35.1MB in the beginning and 57.5MB in the end (delta: -22.4MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-10-24 21:38:07,382 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 46.1MB. Free memory is still 24.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 21:38:07,382 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1725.60ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 35.0MB in the beginning and 36.9MB in the end (delta: -1.9MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2024-10-24 21:38:07,383 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.85ms. Allocated memory is still 73.4MB. Free memory was 36.9MB in the beginning and 32.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 21:38:07,383 INFO L158 Benchmark]: Boogie Preprocessor took 44.97ms. Allocated memory is still 73.4MB. Free memory was 32.7MB in the beginning and 30.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 21:38:07,384 INFO L158 Benchmark]: RCFGBuilder took 768.41ms. Allocated memory is still 73.4MB. Free memory was 30.1MB in the beginning and 34.0MB in the end (delta: -3.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 21:38:07,384 INFO L158 Benchmark]: TraceAbstraction took 565.15ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 33.6MB in the beginning and 57.5MB in the end (delta: -23.9MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2024-10-24 21:38:07,385 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 94.4MB. Free memory is still 57.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 21:38:07,388 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 46.1MB. Free memory is still 24.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1725.60ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 35.0MB in the beginning and 36.9MB in the end (delta: -1.9MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.85ms. Allocated memory is still 73.4MB. Free memory was 36.9MB in the beginning and 32.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.97ms. Allocated memory is still 73.4MB. Free memory was 32.7MB in the beginning and 30.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 768.41ms. Allocated memory is still 73.4MB. Free memory was 30.1MB in the beginning and 34.0MB in the end (delta: -3.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 565.15ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 33.6MB in the beginning and 57.5MB in the end (delta: -23.9MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 94.4MB. Free memory is still 57.5MB. 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: 1835]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1847, overapproximation of large string literal at line 1859, overapproximation of fgets at line 1845. 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); [L1859] 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) [L1859] 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] [L1860] CALL CWE190_Integer_Overflow__int_fgets_square_41_bad() [L1841] int data; [L1842] data = 0 [L1844] 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] [L1845] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1847] data = atoi(inputBuffer) [L1854] CALL badSink(data) [L1835] 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: 1835]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 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 [2024-10-24 21:38:07,419 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