./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_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 cab402ae7f6fc37ff81cd1633a6040486d6a881d5e9ad3bdd2642728ba2d2b73 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 06:52:20,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 06:52:20,835 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-17 06:52:20,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 06:52:20,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 06:52:20,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 06:52:20,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 06:52:20,873 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 06:52:20,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 06:52:20,874 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 06:52:20,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 06:52:20,876 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 06:52:20,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 06:52:20,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 06:52:20,877 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 06:52:20,877 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 06:52:20,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 06:52:20,878 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 06:52:20,878 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 06:52:20,878 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 06:52:20,878 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 06:52:20,883 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 06:52:20,884 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 06:52:20,884 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 06:52:20,884 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 06:52:20,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 06:52:20,884 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 06:52:20,885 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 06:52:20,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 06:52:20,885 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 06:52:20,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 06:52:20,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 06:52:20,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 06:52:20,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 06:52:20,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 06:52:20,887 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 06:52:20,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 06:52:20,888 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 06:52:20,888 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 06:52:20,888 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 06:52:20,888 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 06:52:20,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab402ae7f6fc37ff81cd1633a6040486d6a881d5e9ad3bdd2642728ba2d2b73 [2024-11-17 06:52:21,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 06:52:21,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 06:52:21,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 06:52:21,193 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 06:52:21,194 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 06:52:21,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i [2024-11-17 06:52:22,627 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 06:52:22,983 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 06:52:22,983 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i [2024-11-17 06:52:23,017 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc3bc9caf/4cad9bf640264289960f1f48ea54d698/FLAG610cc43b7 [2024-11-17 06:52:23,033 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc3bc9caf/4cad9bf640264289960f1f48ea54d698 [2024-11-17 06:52:23,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 06:52:23,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 06:52:23,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 06:52:23,044 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 06:52:23,049 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 06:52:23,050 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:52:23" (1/1) ... [2024-11-17 06:52:23,051 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc5bb12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:23, skipping insertion in model container [2024-11-17 06:52:23,051 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:52:23" (1/1) ... [2024-11-17 06:52:23,121 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 06:52:23,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 06:52:23,933 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 06:52:24,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 06:52:24,133 INFO L204 MainTranslator]: Completed translation [2024-11-17 06:52:24,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24 WrapperNode [2024-11-17 06:52:24,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 06:52:24,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 06:52:24,136 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 06:52:24,136 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 06:52:24,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (1/1) ... [2024-11-17 06:52:24,180 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (1/1) ... [2024-11-17 06:52:24,208 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-11-17 06:52:24,210 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 06:52:24,211 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 06:52:24,211 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 06:52:24,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 06:52:24,223 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (1/1) ... [2024-11-17 06:52:24,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (1/1) ... [2024-11-17 06:52:24,226 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (1/1) ... [2024-11-17 06:52:24,241 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]. [2024-11-17 06:52:24,242 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (1/1) ... [2024-11-17 06:52:24,242 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (1/1) ... [2024-11-17 06:52:24,251 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (1/1) ... [2024-11-17 06:52:24,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (1/1) ... [2024-11-17 06:52:24,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (1/1) ... [2024-11-17 06:52:24,257 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (1/1) ... [2024-11-17 06:52:24,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 06:52:24,263 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 06:52:24,263 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 06:52:24,263 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 06:52:24,264 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (1/1) ... [2024-11-17 06:52:24,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 06:52:24,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 06:52:24,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 06:52:24,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 06:52:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-17 06:52:24,348 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-17 06:52:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 06:52:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 06:52:24,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 06:52:24,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 06:52:24,479 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 06:52:24,481 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 06:52:24,592 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-17 06:52:24,592 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 06:52:24,604 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 06:52:24,604 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 06:52:24,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:52:24 BoogieIcfgContainer [2024-11-17 06:52:24,604 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 06:52:24,622 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 06:52:24,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 06:52:24,626 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 06:52:24,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 06:52:23" (1/3) ... [2024-11-17 06:52:24,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e48908a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:52:24, skipping insertion in model container [2024-11-17 06:52:24,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:24" (2/3) ... [2024-11-17 06:52:24,627 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e48908a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:52:24, skipping insertion in model container [2024-11-17 06:52:24,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:52:24" (3/3) ... [2024-11-17 06:52:24,629 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_18_bad.i [2024-11-17 06:52:24,646 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 06:52:24,646 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 06:52:24,714 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 06:52:24,720 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;@4807ab63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 06:52:24,720 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-17 06:52:24,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 06:52:24,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-17 06:52:24,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 06:52:24,730 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 06:52:24,731 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-17 06:52:24,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 06:52:24,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1412586394, now seen corresponding path program 1 times [2024-11-17 06:52:24,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 06:52:24,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446436936] [2024-11-17 06:52:24,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 06:52:24,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 06:52:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 06:52:24,915 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 06:52:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 06:52:24,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 06:52:24,976 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 06:52:24,979 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-17 06:52:24,983 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-17 06:52:24,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 06:52:24,989 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-17 06:52:25,020 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 06:52:25,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 06:52:25 BoogieIcfgContainer [2024-11-17 06:52:25,025 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 06:52:25,027 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 06:52:25,027 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 06:52:25,027 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 06:52:25,028 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:52:24" (3/4) ... [2024-11-17 06:52:25,030 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 06:52:25,031 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 06:52:25,034 INFO L158 Benchmark]: Toolchain (without parser) took 1992.78ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 112.7MB in the beginning and 165.2MB in the end (delta: -52.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 06:52:25,034 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory was 50.4MB in the beginning and 50.4MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 06:52:25,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1092.07ms. Allocated memory is still 180.4MB. Free memory was 112.5MB in the beginning and 96.1MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-17 06:52:25,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.74ms. Allocated memory is still 180.4MB. Free memory was 96.1MB in the beginning and 93.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 06:52:25,036 INFO L158 Benchmark]: Boogie Preprocessor took 48.91ms. Allocated memory is still 180.4MB. Free memory was 93.2MB in the beginning and 91.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 06:52:25,037 INFO L158 Benchmark]: IcfgBuilder took 341.74ms. Allocated memory is still 180.4MB. Free memory was 91.1MB in the beginning and 77.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 06:52:25,038 INFO L158 Benchmark]: TraceAbstraction took 402.33ms. Allocated memory is still 218.1MB. Free memory was 184.7MB in the beginning and 166.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2024-11-17 06:52:25,039 INFO L158 Benchmark]: Witness Printer took 4.99ms. Allocated memory is still 218.1MB. Free memory is still 165.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 06:52:25,041 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory was 50.4MB in the beginning and 50.4MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1092.07ms. Allocated memory is still 180.4MB. Free memory was 112.5MB in the beginning and 96.1MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.74ms. Allocated memory is still 180.4MB. Free memory was 96.1MB in the beginning and 93.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.91ms. Allocated memory is still 180.4MB. Free memory was 93.2MB in the beginning and 91.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 341.74ms. Allocated memory is still 180.4MB. Free memory was 91.1MB in the beginning and 77.7MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 402.33ms. Allocated memory is still 218.1MB. Free memory was 184.7MB in the beginning and 166.3MB in the end (delta: 18.4MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Witness Printer took 4.99ms. Allocated memory is still 218.1MB. Free memory is still 165.2MB. 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1575, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] 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) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_18_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] data - 1 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: 1568]: 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, 26 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=26occurred 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, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-17 06:52:25,081 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_sub_18_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 cab402ae7f6fc37ff81cd1633a6040486d6a881d5e9ad3bdd2642728ba2d2b73 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 06:52:27,313 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 06:52:27,393 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-17 06:52:27,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 06:52:27,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 06:52:27,401 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-17 06:52:27,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 06:52:27,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 06:52:27,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 06:52:27,444 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 06:52:27,444 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 06:52:27,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 06:52:27,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 06:52:27,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 06:52:27,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 06:52:27,446 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 06:52:27,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 06:52:27,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 06:52:27,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 06:52:27,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 06:52:27,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 06:52:27,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 06:52:27,449 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 06:52:27,449 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-17 06:52:27,449 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 06:52:27,450 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 06:52:27,450 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-17 06:52:27,450 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 06:52:27,450 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 06:52:27,450 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 06:52:27,451 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 06:52:27,451 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 06:52:27,451 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 06:52:27,451 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 06:52:27,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 06:52:27,452 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 06:52:27,456 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 06:52:27,456 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 06:52:27,456 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-17 06:52:27,456 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-17 06:52:27,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 06:52:27,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 06:52:27,457 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 06:52:27,457 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 06:52:27,458 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab402ae7f6fc37ff81cd1633a6040486d6a881d5e9ad3bdd2642728ba2d2b73 [2024-11-17 06:52:27,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 06:52:27,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 06:52:27,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 06:52:27,819 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 06:52:27,819 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 06:52:27,820 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i [2024-11-17 06:52:29,354 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 06:52:29,717 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 06:52:29,717 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i [2024-11-17 06:52:29,743 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0932149cb/cc37c69bf4a04e389104d0990fa1ab7d/FLAG282c0d373 [2024-11-17 06:52:29,760 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0932149cb/cc37c69bf4a04e389104d0990fa1ab7d [2024-11-17 06:52:29,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 06:52:29,768 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 06:52:29,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 06:52:29,771 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 06:52:29,776 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 06:52:29,777 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:52:29" (1/1) ... [2024-11-17 06:52:29,778 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@288528f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:29, skipping insertion in model container [2024-11-17 06:52:29,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:52:29" (1/1) ... [2024-11-17 06:52:29,845 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 06:52:30,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 06:52:30,848 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 06:52:30,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 06:52:31,089 INFO L204 MainTranslator]: Completed translation [2024-11-17 06:52:31,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31 WrapperNode [2024-11-17 06:52:31,090 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 06:52:31,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 06:52:31,091 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 06:52:31,091 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 06:52:31,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (1/1) ... [2024-11-17 06:52:31,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (1/1) ... [2024-11-17 06:52:31,164 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2024-11-17 06:52:31,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 06:52:31,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 06:52:31,167 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 06:52:31,167 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 06:52:31,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (1/1) ... [2024-11-17 06:52:31,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (1/1) ... [2024-11-17 06:52:31,182 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (1/1) ... [2024-11-17 06:52:31,209 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]. [2024-11-17 06:52:31,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (1/1) ... [2024-11-17 06:52:31,210 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (1/1) ... [2024-11-17 06:52:31,219 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (1/1) ... [2024-11-17 06:52:31,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (1/1) ... [2024-11-17 06:52:31,225 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (1/1) ... [2024-11-17 06:52:31,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (1/1) ... [2024-11-17 06:52:31,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 06:52:31,234 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 06:52:31,234 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 06:52:31,235 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 06:52:31,235 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (1/1) ... [2024-11-17 06:52:31,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 06:52:31,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 06:52:31,268 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 06:52:31,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 06:52:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-17 06:52:31,306 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-17 06:52:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-17 06:52:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 06:52:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 06:52:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 06:52:31,487 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 06:52:31,489 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 06:52:31,648 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-17 06:52:31,648 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 06:52:31,667 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 06:52:31,667 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 06:52:31,668 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:52:31 BoogieIcfgContainer [2024-11-17 06:52:31,668 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 06:52:31,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 06:52:31,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 06:52:31,674 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 06:52:31,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 06:52:29" (1/3) ... [2024-11-17 06:52:31,675 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3747aaf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:52:31, skipping insertion in model container [2024-11-17 06:52:31,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:52:31" (2/3) ... [2024-11-17 06:52:31,676 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3747aaf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:52:31, skipping insertion in model container [2024-11-17 06:52:31,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:52:31" (3/3) ... [2024-11-17 06:52:31,678 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_18_bad.i [2024-11-17 06:52:31,695 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 06:52:31,695 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 06:52:31,762 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 06:52:31,769 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;@7693be13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 06:52:31,771 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-17 06:52:31,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 06:52:31,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-17 06:52:31,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 06:52:31,786 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 06:52:31,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-17 06:52:31,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 06:52:31,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1412586394, now seen corresponding path program 1 times [2024-11-17 06:52:31,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 06:52:31,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913353800] [2024-11-17 06:52:31,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 06:52:31,807 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 06:52:31,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 06:52:31,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 06:52:31,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-17 06:52:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 06:52:31,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 06:52:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 06:52:32,010 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-17 06:52:32,011 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 06:52:32,012 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-17 06:52:32,014 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-17 06:52:32,021 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 [2024-11-17 06:52:32,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 06:52:32,220 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-17 06:52:32,239 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 06:52:32,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 06:52:32 BoogieIcfgContainer [2024-11-17 06:52:32,242 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 06:52:32,242 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 06:52:32,243 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 06:52:32,243 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 06:52:32,245 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:52:31" (3/4) ... [2024-11-17 06:52:32,247 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 06:52:32,256 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 06:52:32,258 INFO L158 Benchmark]: Toolchain (without parser) took 2489.81ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 37.2MB in the beginning and 50.3MB in the end (delta: -13.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-17 06:52:32,259 INFO L158 Benchmark]: CDTParser took 1.02ms. Allocated memory is still 48.2MB. Free memory was 30.7MB in the beginning and 30.7MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 06:52:32,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1320.59ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 37.0MB in the beginning and 42.1MB in the end (delta: -5.1MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-11-17 06:52:32,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.87ms. Allocated memory is still 79.7MB. Free memory was 42.1MB in the beginning and 39.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 06:52:32,262 INFO L158 Benchmark]: Boogie Preprocessor took 67.16ms. Allocated memory is still 79.7MB. Free memory was 39.0MB in the beginning and 36.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 06:52:32,262 INFO L158 Benchmark]: IcfgBuilder took 434.03ms. Allocated memory is still 79.7MB. Free memory was 36.6MB in the beginning and 45.8MB in the end (delta: -9.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 06:52:32,264 INFO L158 Benchmark]: TraceAbstraction took 572.10ms. Allocated memory is still 79.7MB. Free memory was 45.1MB in the beginning and 26.9MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-17 06:52:32,264 INFO L158 Benchmark]: Witness Printer took 14.35ms. Allocated memory is still 79.7MB. Free memory was 26.9MB in the beginning and 50.3MB in the end (delta: -23.4MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-11-17 06:52:32,267 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02ms. Allocated memory is still 48.2MB. Free memory was 30.7MB in the beginning and 30.7MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1320.59ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 37.0MB in the beginning and 42.1MB in the end (delta: -5.1MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.87ms. Allocated memory is still 79.7MB. Free memory was 42.1MB in the beginning and 39.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.16ms. Allocated memory is still 79.7MB. Free memory was 39.0MB in the beginning and 36.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 434.03ms. Allocated memory is still 79.7MB. Free memory was 36.6MB in the beginning and 45.8MB in the end (delta: -9.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 572.10ms. Allocated memory is still 79.7MB. Free memory was 45.1MB in the beginning and 26.9MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 14.35ms. Allocated memory is still 79.7MB. Free memory was 26.9MB in the beginning and 50.3MB in the end (delta: -23.4MB). Peak memory consumption was 2.9MB. 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1575, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] 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) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_18_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] data - 1 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: 1568]: 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, 26 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=26occurred 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, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-17 06:52:32,306 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