./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f 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 ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_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 bef63c42b87a0bfebee91ff77870715a71ca1795bcfbb7b0cd1ce6ff664812e4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 00:58:41,721 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 00:58:41,816 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-23 00:58:41,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 00:58:41,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 00:58:41,855 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 00:58:41,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 00:58:41,856 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 00:58:41,857 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 00:58:41,857 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 00:58:41,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 00:58:41,858 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 00:58:41,859 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 00:58:41,859 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 00:58:41,859 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 00:58:41,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 00:58:41,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 00:58:41,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 00:58:41,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 00:58:41,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 00:58:41,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 00:58:41,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 00:58:41,863 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 00:58:41,863 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 00:58:41,863 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 00:58:41,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 00:58:41,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 00:58:41,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 00:58:41,865 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 00:58:41,867 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 00:58:41,867 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 00:58:41,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 00:58:41,868 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 00:58:41,868 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 00:58:41,868 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 00:58:41,868 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 00:58:41,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 00:58:41,869 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 00:58:41,869 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 00:58:41,869 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 00:58:41,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 00:58:41,871 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bef63c42b87a0bfebee91ff77870715a71ca1795bcfbb7b0cd1ce6ff664812e4 [2024-11-23 00:58:42,127 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 00:58:42,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 00:58:42,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 00:58:42,158 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 00:58:42,158 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 00:58:42,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_bad.i [2024-11-23 00:58:43,561 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 00:58:43,885 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 00:58:43,886 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_bad.i [2024-11-23 00:58:43,914 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6387b4601/a9c8ef5bd8ab4edd9d3a6e45caeafa48/FLAG873581b23 [2024-11-23 00:58:43,929 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6387b4601/a9c8ef5bd8ab4edd9d3a6e45caeafa48 [2024-11-23 00:58:43,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 00:58:43,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 00:58:43,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 00:58:43,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 00:58:43,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 00:58:43,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:58:43" (1/1) ... [2024-11-23 00:58:43,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7669cc95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:43, skipping insertion in model container [2024-11-23 00:58:43,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:58:43" (1/1) ... [2024-11-23 00:58:43,994 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 00:58:44,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 00:58:44,663 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 00:58:44,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 00:58:44,943 INFO L204 MainTranslator]: Completed translation [2024-11-23 00:58:44,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44 WrapperNode [2024-11-23 00:58:44,944 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 00:58:44,945 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 00:58:44,945 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 00:58:44,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 00:58:44,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (1/1) ... [2024-11-23 00:58:44,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (1/1) ... [2024-11-23 00:58:45,011 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-23 00:58:45,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 00:58:45,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 00:58:45,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 00:58:45,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 00:58:45,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (1/1) ... [2024-11-23 00:58:45,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (1/1) ... [2024-11-23 00:58:45,025 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (1/1) ... [2024-11-23 00:58:45,042 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]. [2024-11-23 00:58:45,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (1/1) ... [2024-11-23 00:58:45,043 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (1/1) ... [2024-11-23 00:58:45,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (1/1) ... [2024-11-23 00:58:45,050 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (1/1) ... [2024-11-23 00:58:45,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (1/1) ... [2024-11-23 00:58:45,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (1/1) ... [2024-11-23 00:58:45,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 00:58:45,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 00:58:45,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 00:58:45,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 00:58:45,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (1/1) ... [2024-11-23 00:58:45,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 00:58:45,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 00:58:45,095 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) [2024-11-23 00:58:45,099 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 [2024-11-23 00:58:45,151 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-23 00:58:45,152 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-23 00:58:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 00:58:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 00:58:45,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 00:58:45,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 00:58:45,278 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 00:58:45,280 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 00:58:45,394 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-23 00:58:45,394 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 00:58:45,405 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 00:58:45,406 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 00:58:45,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:58:45 BoogieIcfgContainer [2024-11-23 00:58:45,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 00:58:45,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 00:58:45,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 00:58:45,412 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 00:58:45,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:58:43" (1/3) ... [2024-11-23 00:58:45,413 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434391cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:58:45, skipping insertion in model container [2024-11-23 00:58:45,414 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:44" (2/3) ... [2024-11-23 00:58:45,414 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@434391cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:58:45, skipping insertion in model container [2024-11-23 00:58:45,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:58:45" (3/3) ... [2024-11-23 00:58:45,417 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_68_bad.i [2024-11-23 00:58:45,436 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 00:58:45,436 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-23 00:58:45,494 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 00:58:45,501 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;@50339579, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 00:58:45,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 00:58:45,505 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) [2024-11-23 00:58:45,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-23 00:58:45,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 00:58:45,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 00:58:45,514 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 00:58:45,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 00:58:45,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-23 00:58:45,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 00:58:45,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331319483] [2024-11-23 00:58:45,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 00:58:45,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 00:58:45,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 00:58:45,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 00:58:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 00:58:45,780 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 00:58:45,782 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-23 00:58:45,783 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-23 00:58:45,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-23 00:58:45,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 00:58:45,790 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-23 00:58:45,814 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 00:58:45,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:58:45 BoogieIcfgContainer [2024-11-23 00:58:45,817 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 00:58:45,817 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 00:58:45,817 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 00:58:45,818 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 00:58:45,818 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:58:45" (3/4) ... [2024-11-23 00:58:45,821 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-23 00:58:45,822 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 00:58:45,823 INFO L158 Benchmark]: Toolchain (without parser) took 1889.91ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 93.5MB in the beginning and 123.4MB in the end (delta: -29.9MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2024-11-23 00:58:45,823 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 151.0MB. Free memory is still 112.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 00:58:45,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1009.65ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 93.1MB in the beginning and 163.3MB in the end (delta: -70.2MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2024-11-23 00:58:45,825 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.48ms. Allocated memory is still 226.5MB. Free memory was 163.3MB in the beginning and 160.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 00:58:45,826 INFO L158 Benchmark]: Boogie Preprocessor took 42.65ms. Allocated memory is still 226.5MB. Free memory was 160.1MB in the beginning and 158.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 00:58:45,827 INFO L158 Benchmark]: RCFGBuilder took 350.88ms. Allocated memory is still 226.5MB. Free memory was 158.0MB in the beginning and 143.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-23 00:58:45,827 INFO L158 Benchmark]: TraceAbstraction took 407.96ms. Allocated memory is still 226.5MB. Free memory was 143.3MB in the beginning and 124.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-23 00:58:45,827 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 226.5MB. Free memory was 124.5MB in the beginning and 123.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 00:58:45,832 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 151.0MB. Free memory is still 112.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1009.65ms. Allocated memory was 151.0MB in the beginning and 226.5MB in the end (delta: 75.5MB). Free memory was 93.1MB in the beginning and 163.3MB in the end (delta: -70.2MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.48ms. Allocated memory is still 226.5MB. Free memory was 163.3MB in the beginning and 160.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.65ms. Allocated memory is still 226.5MB. Free memory was 160.1MB in the beginning and 158.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.88ms. Allocated memory is still 226.5MB. Free memory was 158.0MB in the beginning and 143.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 407.96ms. Allocated memory is still 226.5MB. Free memory was 143.3MB in the beginning and 124.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 226.5MB. Free memory was 124.5MB in the beginning and 123.4MB in the end (delta: 1.0MB). 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1573, overapproximation of fgets at line 1558. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_sub_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=0, 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) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE191_Integer_Underflow__int_fgets_sub_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=0, 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] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_sub_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_sub_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_sub_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1585] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=-2147483648, 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: 1585]: 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-23 00:58:45,853 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 ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_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 bef63c42b87a0bfebee91ff77870715a71ca1795bcfbb7b0cd1ce6ff664812e4 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 00:58:48,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 00:58:48,169 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-23 00:58:48,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 00:58:48,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 00:58:48,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-23 00:58:48,212 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 00:58:48,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 00:58:48,213 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 00:58:48,215 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 00:58:48,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 00:58:48,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 00:58:48,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 00:58:48,217 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 00:58:48,218 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 00:58:48,218 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 00:58:48,219 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 00:58:48,219 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 00:58:48,219 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 00:58:48,219 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 00:58:48,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 00:58:48,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 00:58:48,224 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 00:58:48,224 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 00:58:48,224 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 00:58:48,224 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 00:58:48,225 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 00:58:48,225 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 00:58:48,225 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 00:58:48,225 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 00:58:48,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 00:58:48,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 00:58:48,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 00:58:48,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 00:58:48,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 00:58:48,226 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 00:58:48,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 00:58:48,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 00:58:48,227 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-23 00:58:48,227 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 00:58:48,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 00:58:48,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 00:58:48,228 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 00:58:48,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 00:58:48,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bef63c42b87a0bfebee91ff77870715a71ca1795bcfbb7b0cd1ce6ff664812e4 [2024-11-23 00:58:48,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 00:58:48,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 00:58:48,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 00:58:48,586 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 00:58:48,586 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 00:58:48,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_bad.i [2024-11-23 00:58:50,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 00:58:50,534 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 00:58:50,535 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_68_bad.i [2024-11-23 00:58:50,567 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3379ee108/1563b1b10a51439db1c6ab379cb06bfa/FLAGb18a7dc2a [2024-11-23 00:58:50,584 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3379ee108/1563b1b10a51439db1c6ab379cb06bfa [2024-11-23 00:58:50,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 00:58:50,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 00:58:50,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 00:58:50,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 00:58:50,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 00:58:50,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:58:50" (1/1) ... [2024-11-23 00:58:50,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cb68205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:50, skipping insertion in model container [2024-11-23 00:58:50,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:58:50" (1/1) ... [2024-11-23 00:58:50,702 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 00:58:51,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 00:58:51,399 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 00:58:51,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 00:58:51,632 INFO L204 MainTranslator]: Completed translation [2024-11-23 00:58:51,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51 WrapperNode [2024-11-23 00:58:51,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 00:58:51,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 00:58:51,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 00:58:51,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 00:58:51,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (1/1) ... [2024-11-23 00:58:51,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (1/1) ... [2024-11-23 00:58:51,713 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-23 00:58:51,714 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 00:58:51,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 00:58:51,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 00:58:51,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 00:58:51,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (1/1) ... [2024-11-23 00:58:51,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (1/1) ... [2024-11-23 00:58:51,730 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (1/1) ... [2024-11-23 00:58:51,747 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]. [2024-11-23 00:58:51,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (1/1) ... [2024-11-23 00:58:51,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (1/1) ... [2024-11-23 00:58:51,755 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (1/1) ... [2024-11-23 00:58:51,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (1/1) ... [2024-11-23 00:58:51,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (1/1) ... [2024-11-23 00:58:51,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (1/1) ... [2024-11-23 00:58:51,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 00:58:51,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 00:58:51,765 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 00:58:51,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 00:58:51,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (1/1) ... [2024-11-23 00:58:51,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 00:58:51,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 00:58:51,799 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) [2024-11-23 00:58:51,803 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 [2024-11-23 00:58:51,853 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-23 00:58:51,853 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-23 00:58:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 00:58:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 00:58:51,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 00:58:51,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 00:58:52,001 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 00:58:52,004 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 00:58:52,165 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-23 00:58:52,165 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 00:58:52,179 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 00:58:52,180 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-23 00:58:52,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:58:52 BoogieIcfgContainer [2024-11-23 00:58:52,180 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 00:58:52,183 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 00:58:52,184 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 00:58:52,187 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 00:58:52,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:58:50" (1/3) ... [2024-11-23 00:58:52,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfc4640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:58:52, skipping insertion in model container [2024-11-23 00:58:52,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:58:51" (2/3) ... [2024-11-23 00:58:52,189 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dfc4640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:58:52, skipping insertion in model container [2024-11-23 00:58:52,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:58:52" (3/3) ... [2024-11-23 00:58:52,191 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_68_bad.i [2024-11-23 00:58:52,207 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 00:58:52,207 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-23 00:58:52,277 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 00:58:52,285 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;@641a6cf2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 00:58:52,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 00:58:52,290 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) [2024-11-23 00:58:52,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-23 00:58:52,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-23 00:58:52,300 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 00:58:52,300 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-23 00:58:52,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 00:58:52,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-23 00:58:52,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-23 00:58:52,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401995000] [2024-11-23 00:58:52,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 00:58:52,324 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 [2024-11-23 00:58:52,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-23 00:58:52,327 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) [2024-11-23 00:58:52,328 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 [2024-11-23 00:58:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 00:58:52,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 00:58:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 00:58:52,545 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-23 00:58:52,546 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-23 00:58:52,547 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-23 00:58:52,550 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-23 00:58:52,556 INFO L540 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)] Forceful destruction successful, exit code 0 [2024-11-23 00:58:52,754 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 [2024-11-23 00:58:52,758 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-23 00:58:52,778 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 00:58:52,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:58:52 BoogieIcfgContainer [2024-11-23 00:58:52,782 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 00:58:52,782 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 00:58:52,782 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 00:58:52,783 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 00:58:52,783 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:58:52" (3/4) ... [2024-11-23 00:58:52,786 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-23 00:58:52,787 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 00:58:52,788 INFO L158 Benchmark]: Toolchain (without parser) took 2200.45ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 23.4MB in the beginning and 35.2MB in the end (delta: -11.7MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-11-23 00:58:52,789 INFO L158 Benchmark]: CDTParser took 1.00ms. Allocated memory is still 44.0MB. Free memory was 25.3MB in the beginning and 25.2MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 00:58:52,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1043.19ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 23.3MB in the beginning and 36.0MB in the end (delta: -12.8MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2024-11-23 00:58:52,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.09ms. Allocated memory is still 75.5MB. Free memory was 36.0MB in the beginning and 32.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 00:58:52,791 INFO L158 Benchmark]: Boogie Preprocessor took 49.13ms. Allocated memory is still 75.5MB. Free memory was 32.8MB in the beginning and 30.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 00:58:52,792 INFO L158 Benchmark]: RCFGBuilder took 416.00ms. Allocated memory is still 75.5MB. Free memory was 30.1MB in the beginning and 35.7MB in the end (delta: -5.5MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-11-23 00:58:52,792 INFO L158 Benchmark]: TraceAbstraction took 598.80ms. Allocated memory is still 75.5MB. Free memory was 34.7MB in the beginning and 35.6MB in the end (delta: -818.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 00:58:52,793 INFO L158 Benchmark]: Witness Printer took 4.73ms. Allocated memory is still 75.5MB. Free memory was 35.6MB in the beginning and 35.2MB in the end (delta: 393.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 00:58:52,796 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.00ms. Allocated memory is still 44.0MB. Free memory was 25.3MB in the beginning and 25.2MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1043.19ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 23.3MB in the beginning and 36.0MB in the end (delta: -12.8MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.09ms. Allocated memory is still 75.5MB. Free memory was 36.0MB in the beginning and 32.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.13ms. Allocated memory is still 75.5MB. Free memory was 32.8MB in the beginning and 30.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.00ms. Allocated memory is still 75.5MB. Free memory was 30.1MB in the beginning and 35.7MB in the end (delta: -5.5MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * TraceAbstraction took 598.80ms. Allocated memory is still 75.5MB. Free memory was 34.7MB in the beginning and 35.6MB in the end (delta: -818.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.73ms. Allocated memory is still 75.5MB. Free memory was 35.6MB in the beginning and 35.2MB in the end (delta: 393.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1573, overapproximation of fgets at line 1558. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_sub_68_badData; [L1549] int CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData; VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=0, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=0, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, 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) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=0, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE191_Integer_Underflow__int_fgets_sub_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=0, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, 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] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_sub_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_sub_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_sub_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1585] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_68_goodG2BData=0, 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: 1585]: 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 [2024-11-23 00:58:52,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample