./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d 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/CWE191_Integer_Underflow__int_fgets_predec_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 aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 14:11:24,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 14:11:24,555 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-09 14:11:24,561 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 14:11:24,562 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 14:11:24,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 14:11:24,597 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 14:11:24,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 14:11:24,599 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 14:11:24,600 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 14:11:24,600 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 14:11:24,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 14:11:24,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 14:11:24,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 14:11:24,602 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 14:11:24,604 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 14:11:24,604 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 14:11:24,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 14:11:24,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 14:11:24,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 14:11:24,605 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 14:11:24,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 14:11:24,607 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 14:11:24,608 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 14:11:24,608 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 14:11:24,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 14:11:24,609 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 14:11:24,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 14:11:24,609 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 14:11:24,610 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 14:11:24,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 14:11:24,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 14:11:24,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 14:11:24,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 14:11:24,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 14:11:24,612 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 14:11:24,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 14:11:24,613 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 14:11:24,613 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 14:11:24,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 14:11:24,614 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 14:11:24,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57 [2024-11-09 14:11:24,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 14:11:24,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 14:11:24,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 14:11:24,911 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 14:11:24,911 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 14:11:24,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2024-11-09 14:11:26,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 14:11:26,788 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 14:11:26,788 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2024-11-09 14:11:26,820 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f521168c/4b21a2bc496b48acbcfb1dab433f940e/FLAG1c959ba0c [2024-11-09 14:11:26,837 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f521168c/4b21a2bc496b48acbcfb1dab433f940e [2024-11-09 14:11:26,839 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 14:11:26,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 14:11:26,842 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 14:11:26,842 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 14:11:26,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 14:11:26,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:11:26" (1/1) ... [2024-11-09 14:11:26,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cab6739 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:26, skipping insertion in model container [2024-11-09 14:11:26,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:11:26" (1/1) ... [2024-11-09 14:11:26,908 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 14:11:27,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 14:11:27,608 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 14:11:27,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 14:11:27,834 INFO L204 MainTranslator]: Completed translation [2024-11-09 14:11:27,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27 WrapperNode [2024-11-09 14:11:27,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 14:11:27,836 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 14:11:27,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 14:11:27,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 14:11:27,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (1/1) ... [2024-11-09 14:11:27,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (1/1) ... [2024-11-09 14:11:27,904 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2024-11-09 14:11:27,905 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 14:11:27,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 14:11:27,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 14:11:27,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 14:11:27,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (1/1) ... [2024-11-09 14:11:27,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (1/1) ... [2024-11-09 14:11:27,922 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (1/1) ... [2024-11-09 14:11:27,947 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]. [2024-11-09 14:11:27,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (1/1) ... [2024-11-09 14:11:27,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (1/1) ... [2024-11-09 14:11:27,956 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (1/1) ... [2024-11-09 14:11:27,961 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (1/1) ... [2024-11-09 14:11:27,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (1/1) ... [2024-11-09 14:11:27,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (1/1) ... [2024-11-09 14:11:27,968 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 14:11:27,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 14:11:27,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 14:11:27,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 14:11:27,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (1/1) ... [2024-11-09 14:11:27,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 14:11:27,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 14:11:28,013 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) [2024-11-09 14:11:28,015 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 [2024-11-09 14:11:28,058 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 14:11:28,058 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 14:11:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 14:11:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 14:11:28,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 14:11:28,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 14:11:28,205 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 14:11:28,207 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 14:11:28,356 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-09 14:11:28,356 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 14:11:28,372 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 14:11:28,373 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 14:11:28,373 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:11:28 BoogieIcfgContainer [2024-11-09 14:11:28,373 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 14:11:28,376 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 14:11:28,377 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 14:11:28,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 14:11:28,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:11:26" (1/3) ... [2024-11-09 14:11:28,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca553b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:11:28, skipping insertion in model container [2024-11-09 14:11:28,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:27" (2/3) ... [2024-11-09 14:11:28,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca553b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:11:28, skipping insertion in model container [2024-11-09 14:11:28,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:11:28" (3/3) ... [2024-11-09 14:11:28,384 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2024-11-09 14:11:28,400 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 14:11:28,401 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 14:11:28,462 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 14:11:28,470 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;@4146b006, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 14:11:28,471 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 14:11:28,475 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) [2024-11-09 14:11:28,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 14:11:28,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 14:11:28,482 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:11:28,482 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 14:11:28,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:11:28,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-09 14:11:28,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 14:11:28,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137399983] [2024-11-09 14:11:28,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:11:28,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 14:11:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 14:11:28,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 14:11:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 14:11:28,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 14:11:28,726 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 14:11:28,727 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 14:11:28,729 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 14:11:28,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 14:11:28,734 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 14:11:28,759 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 14:11:28,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:11:28 BoogieIcfgContainer [2024-11-09 14:11:28,763 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 14:11:28,764 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 14:11:28,764 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 14:11:28,765 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 14:11:28,766 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:11:28" (3/4) ... [2024-11-09 14:11:28,768 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 14:11:28,769 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 14:11:28,770 INFO L158 Benchmark]: Toolchain (without parser) took 1928.88ms. Allocated memory is still 163.6MB. Free memory was 112.1MB in the beginning and 66.9MB in the end (delta: 45.2MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2024-11-09 14:11:28,770 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 163.6MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 14:11:28,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 992.85ms. Allocated memory is still 163.6MB. Free memory was 111.7MB in the beginning and 105.7MB in the end (delta: 6.0MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2024-11-09 14:11:28,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.20ms. Allocated memory is still 163.6MB. Free memory was 105.7MB in the beginning and 103.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 14:11:28,772 INFO L158 Benchmark]: Boogie Preprocessor took 66.16ms. Allocated memory is still 163.6MB. Free memory was 103.3MB in the beginning and 100.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 14:11:28,773 INFO L158 Benchmark]: RCFGBuilder took 401.74ms. Allocated memory is still 163.6MB. Free memory was 100.4MB in the beginning and 87.0MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 14:11:28,773 INFO L158 Benchmark]: TraceAbstraction took 387.32ms. Allocated memory is still 163.6MB. Free memory was 87.0MB in the beginning and 67.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 14:11:28,774 INFO L158 Benchmark]: Witness Printer took 5.17ms. Allocated memory is still 163.6MB. Free memory was 67.9MB in the beginning and 66.9MB in the end (delta: 995.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 14:11:28,777 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 163.6MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 992.85ms. Allocated memory is still 163.6MB. Free memory was 111.7MB in the beginning and 105.7MB in the end (delta: 6.0MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.20ms. Allocated memory is still 163.6MB. Free memory was 105.7MB in the beginning and 103.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.16ms. Allocated memory is still 163.6MB. Free memory was 103.3MB in the beginning and 100.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 401.74ms. Allocated memory is still 163.6MB. Free memory was 100.4MB in the beginning and 87.0MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 387.32ms. Allocated memory is still 163.6MB. Free memory was 87.0MB in the beginning and 67.9MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.17ms. Allocated memory is still 163.6MB. Free memory was 67.9MB in the beginning and 66.9MB in the end (delta: 995.5kB). 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1562. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_41_bad() [L1558] int data; [L1559] data = 0 [L1561] 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] [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1571] CALL badSink(data) [L1551] --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: 1551]: 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: 0.3s, 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, 0.0s 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 [2024-11-09 14:11:28,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/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/CWE191_Integer_Underflow__int_fgets_predec_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 aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 14:11:30,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 14:11:31,072 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-09 14:11:31,082 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 14:11:31,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 14:11:31,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-09 14:11:31,122 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 14:11:31,122 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 14:11:31,123 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 14:11:31,123 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 14:11:31,123 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 14:11:31,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 14:11:31,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 14:11:31,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 14:11:31,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 14:11:31,129 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 14:11:31,130 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 14:11:31,130 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 14:11:31,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 14:11:31,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 14:11:31,131 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 14:11:31,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 14:11:31,132 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 14:11:31,132 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 14:11:31,132 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 14:11:31,133 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 14:11:31,133 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 14:11:31,133 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 14:11:31,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 14:11:31,134 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 14:11:31,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 14:11:31,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 14:11:31,134 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 14:11:31,135 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 14:11:31,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 14:11:31,138 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 14:11:31,138 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 14:11:31,139 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 14:11:31,139 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-09 14:11:31,140 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 14:11:31,140 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 14:11:31,140 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 14:11:31,141 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 14:11:31,141 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 14:11:31,141 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aef420b540c063f31a53b43334fa33768cd0b489f556dd1729ac7bc4e3b20f57 [2024-11-09 14:11:31,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 14:11:31,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 14:11:31,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 14:11:31,492 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 14:11:31,493 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 14:11:31,494 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2024-11-09 14:11:33,084 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 14:11:33,469 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 14:11:33,470 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2024-11-09 14:11:33,492 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de0e9ef63/3609760cd21f482bb21edbacd4ec0b97/FLAGd1ba46fc9 [2024-11-09 14:11:33,507 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de0e9ef63/3609760cd21f482bb21edbacd4ec0b97 [2024-11-09 14:11:33,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 14:11:33,511 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 14:11:33,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 14:11:33,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 14:11:33,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 14:11:33,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:11:33" (1/1) ... [2024-11-09 14:11:33,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2ac2be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:33, skipping insertion in model container [2024-11-09 14:11:33,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 02:11:33" (1/1) ... [2024-11-09 14:11:33,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 14:11:34,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 14:11:34,393 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 14:11:34,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 14:11:34,615 INFO L204 MainTranslator]: Completed translation [2024-11-09 14:11:34,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34 WrapperNode [2024-11-09 14:11:34,616 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 14:11:34,617 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 14:11:34,617 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 14:11:34,617 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 14:11:34,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (1/1) ... [2024-11-09 14:11:34,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (1/1) ... [2024-11-09 14:11:34,691 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-09 14:11:34,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 14:11:34,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 14:11:34,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 14:11:34,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 14:11:34,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (1/1) ... [2024-11-09 14:11:34,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (1/1) ... [2024-11-09 14:11:34,703 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (1/1) ... [2024-11-09 14:11:34,715 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]. [2024-11-09 14:11:34,715 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (1/1) ... [2024-11-09 14:11:34,715 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (1/1) ... [2024-11-09 14:11:34,726 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (1/1) ... [2024-11-09 14:11:34,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (1/1) ... [2024-11-09 14:11:34,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (1/1) ... [2024-11-09 14:11:34,733 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (1/1) ... [2024-11-09 14:11:34,736 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 14:11:34,737 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 14:11:34,737 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 14:11:34,737 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 14:11:34,738 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (1/1) ... [2024-11-09 14:11:34,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 14:11:34,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 14:11:34,766 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) [2024-11-09 14:11:34,772 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 [2024-11-09 14:11:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 14:11:34,807 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 14:11:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-09 14:11:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 14:11:34,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 14:11:34,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 14:11:34,941 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 14:11:34,943 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 14:11:35,123 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-09 14:11:35,124 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 14:11:35,138 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 14:11:35,138 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 14:11:35,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:11:35 BoogieIcfgContainer [2024-11-09 14:11:35,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 14:11:35,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 14:11:35,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 14:11:35,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 14:11:35,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 02:11:33" (1/3) ... [2024-11-09 14:11:35,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd19495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:11:35, skipping insertion in model container [2024-11-09 14:11:35,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 02:11:34" (2/3) ... [2024-11-09 14:11:35,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd19495 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 02:11:35, skipping insertion in model container [2024-11-09 14:11:35,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:11:35" (3/3) ... [2024-11-09 14:11:35,150 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_41_bad.i [2024-11-09 14:11:35,166 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 14:11:35,166 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 14:11:35,237 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 14:11:35,243 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;@74825c79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 14:11:35,243 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 14:11:35,247 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) [2024-11-09 14:11:35,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 14:11:35,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 14:11:35,256 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 14:11:35,257 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 14:11:35,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 14:11:35,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-09 14:11:35,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 14:11:35,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813371551] [2024-11-09 14:11:35,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 14:11:35,276 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 [2024-11-09 14:11:35,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 14:11:35,280 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) [2024-11-09 14:11:35,281 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 [2024-11-09 14:11:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 14:11:35,407 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 14:11:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 14:11:35,469 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-09 14:11:35,471 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 14:11:35,472 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 14:11:35,473 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 14:11:35,480 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 [2024-11-09 14:11:35,674 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 [2024-11-09 14:11:35,678 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 14:11:35,696 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 14:11:35,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 02:11:35 BoogieIcfgContainer [2024-11-09 14:11:35,698 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 14:11:35,699 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 14:11:35,699 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 14:11:35,699 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 14:11:35,699 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 02:11:35" (3/4) ... [2024-11-09 14:11:35,701 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 14:11:35,702 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 14:11:35,703 INFO L158 Benchmark]: Toolchain (without parser) took 2192.47ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 42.1MB in the beginning and 36.6MB in the end (delta: 5.5MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-11-09 14:11:35,704 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 50.3MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 14:11:35,704 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1102.19ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 41.9MB in the beginning and 35.2MB in the end (delta: 6.7MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2024-11-09 14:11:35,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.75ms. Allocated memory is still 79.7MB. Free memory was 35.2MB in the beginning and 53.0MB in the end (delta: -17.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 14:11:35,705 INFO L158 Benchmark]: Boogie Preprocessor took 43.91ms. Allocated memory is still 79.7MB. Free memory was 53.0MB in the beginning and 50.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 14:11:35,706 INFO L158 Benchmark]: RCFGBuilder took 402.30ms. Allocated memory is still 79.7MB. Free memory was 50.0MB in the beginning and 35.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 14:11:35,706 INFO L158 Benchmark]: TraceAbstraction took 557.58ms. Allocated memory is still 79.7MB. Free memory was 34.5MB in the beginning and 37.2MB in the end (delta: -2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 14:11:35,707 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 79.7MB. Free memory was 37.2MB in the beginning and 36.6MB in the end (delta: 583.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 14:11:35,710 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 50.3MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1102.19ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 41.9MB in the beginning and 35.2MB in the end (delta: 6.7MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.75ms. Allocated memory is still 79.7MB. Free memory was 35.2MB in the beginning and 53.0MB in the end (delta: -17.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.91ms. Allocated memory is still 79.7MB. Free memory was 53.0MB in the beginning and 50.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.30ms. Allocated memory is still 79.7MB. Free memory was 50.0MB in the beginning and 35.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 557.58ms. Allocated memory is still 79.7MB. Free memory was 34.5MB in the beginning and 37.2MB in the end (delta: -2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 79.7MB. Free memory was 37.2MB in the beginning and 36.6MB in the end (delta: 583.2kB). 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1562. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_41_bad() [L1558] int data; [L1559] data = 0 [L1561] 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] [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1571] CALL badSink(data) [L1551] --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: 1551]: 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: 0.5s, 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=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, 0.0s 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 [2024-11-09 14:11:35,737 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