./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_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_postdec_53_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 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 06:50:31,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 06:50:31,346 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-17 06:50:31,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 06:50:31,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 06:50:31,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 06:50:31,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 06:50:31,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 06:50:31,376 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 06:50:31,376 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 06:50:31,377 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 06:50:31,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 06:50:31,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 06:50:31,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 06:50:31,379 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 06:50:31,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 06:50:31,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 06:50:31,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 06:50:31,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 06:50:31,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 06:50:31,381 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 06:50:31,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 06:50:31,382 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 06:50:31,383 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 06:50:31,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 06:50:31,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 06:50:31,384 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 06:50:31,384 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 06:50:31,385 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 06:50:31,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 06:50:31,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 06:50:31,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 06:50:31,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 06:50:31,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 06:50:31,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 06:50:31,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 06:50:31,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 06:50:31,388 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 06:50:31,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 06:50:31,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 06:50:31,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 06:50:31,391 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a [2024-11-17 06:50:31,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 06:50:31,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 06:50:31,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 06:50:31,642 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 06:50:31,643 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 06:50:31,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-11-17 06:50:33,091 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 06:50:33,420 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 06:50:33,420 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-11-17 06:50:33,449 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34aadb685/2aa1c4f6b4ab4b779b5471f89dd81c9b/FLAGa1f559a60 [2024-11-17 06:50:33,462 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34aadb685/2aa1c4f6b4ab4b779b5471f89dd81c9b [2024-11-17 06:50:33,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 06:50:33,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 06:50:33,468 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 06:50:33,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 06:50:33,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 06:50:33,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:50:33" (1/1) ... [2024-11-17 06:50:33,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b7da06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:33, skipping insertion in model container [2024-11-17 06:50:33,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:50:33" (1/1) ... [2024-11-17 06:50:33,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 06:50:34,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 06:50:34,295 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 06:50:34,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 06:50:34,498 INFO L204 MainTranslator]: Completed translation [2024-11-17 06:50:34,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34 WrapperNode [2024-11-17 06:50:34,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 06:50:34,500 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 06:50:34,500 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 06:50:34,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 06:50:34,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (1/1) ... [2024-11-17 06:50:34,528 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (1/1) ... [2024-11-17 06:50:34,551 INFO L138 Inliner]: procedures = 501, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 73 [2024-11-17 06:50:34,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 06:50:34,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 06:50:34,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 06:50:34,552 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 06:50:34,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (1/1) ... [2024-11-17 06:50:34,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (1/1) ... [2024-11-17 06:50:34,566 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (1/1) ... [2024-11-17 06:50:34,582 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 06:50:34,582 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (1/1) ... [2024-11-17 06:50:34,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (1/1) ... [2024-11-17 06:50:34,587 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (1/1) ... [2024-11-17 06:50:34,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (1/1) ... [2024-11-17 06:50:34,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (1/1) ... [2024-11-17 06:50:34,590 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (1/1) ... [2024-11-17 06:50:34,592 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 06:50:34,593 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 06:50:34,596 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 06:50:34,596 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 06:50:34,597 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (1/1) ... [2024-11-17 06:50:34,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 06:50:34,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 06:50:34,629 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 06:50:34,631 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 06:50:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-17 06:50:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-17 06:50:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 06:50:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 06:50:34,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 06:50:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 06:50:34,791 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 06:50:34,793 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 06:50:34,924 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-17 06:50:34,925 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 06:50:34,938 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 06:50:34,938 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 06:50:34,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:50:34 BoogieIcfgContainer [2024-11-17 06:50:34,939 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 06:50:34,941 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 06:50:34,941 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 06:50:34,944 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 06:50:34,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 06:50:33" (1/3) ... [2024-11-17 06:50:34,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd247db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:50:34, skipping insertion in model container [2024-11-17 06:50:34,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:34" (2/3) ... [2024-11-17 06:50:34,945 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fd247db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:50:34, skipping insertion in model container [2024-11-17 06:50:34,945 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:50:34" (3/3) ... [2024-11-17 06:50:34,946 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-11-17 06:50:34,959 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 06:50:34,960 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 06:50:35,016 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 06:50:35,025 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;@1d83385b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 06:50:35,026 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-17 06:50:35,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 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 06:50:35,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-17 06:50:35,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 06:50:35,039 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 06:50:35,041 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-17 06:50:35,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 06:50:35,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1633837687, now seen corresponding path program 1 times [2024-11-17 06:50:35,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 06:50:35,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664775547] [2024-11-17 06:50:35,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 06:50:35,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 06:50:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 06:50:35,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 06:50:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 06:50:35,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 06:50:35,309 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 06:50:35,310 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-17 06:50:35,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-17 06:50:35,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 06:50:35,317 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-17 06:50:35,334 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 06:50:35,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 06:50:35 BoogieIcfgContainer [2024-11-17 06:50:35,338 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 06:50:35,340 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 06:50:35,340 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 06:50:35,340 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 06:50:35,341 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:50:34" (3/4) ... [2024-11-17 06:50:35,343 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 06:50:35,345 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 06:50:35,347 INFO L158 Benchmark]: Toolchain (without parser) took 1879.81ms. Allocated memory is still 197.1MB. Free memory was 125.8MB in the beginning and 77.0MB in the end (delta: 48.8MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2024-11-17 06:50:35,347 INFO L158 Benchmark]: CDTParser took 0.98ms. Allocated memory is still 109.1MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 06:50:35,348 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1031.01ms. Allocated memory is still 197.1MB. Free memory was 125.5MB in the beginning and 116.4MB in the end (delta: 9.2MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2024-11-17 06:50:35,349 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.62ms. Allocated memory is still 197.1MB. Free memory was 116.4MB in the beginning and 113.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 06:50:35,349 INFO L158 Benchmark]: Boogie Preprocessor took 40.29ms. Allocated memory is still 197.1MB. Free memory was 113.3MB in the beginning and 111.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 06:50:35,350 INFO L158 Benchmark]: IcfgBuilder took 346.00ms. Allocated memory is still 197.1MB. Free memory was 111.3MB in the beginning and 96.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-17 06:50:35,350 INFO L158 Benchmark]: TraceAbstraction took 396.95ms. Allocated memory is still 197.1MB. Free memory was 95.8MB in the beginning and 77.8MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-17 06:50:35,351 INFO L158 Benchmark]: Witness Printer took 6.04ms. Allocated memory is still 197.1MB. Free memory was 77.8MB in the beginning and 77.0MB in the end (delta: 825.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 06:50:35,356 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98ms. Allocated memory is still 109.1MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1031.01ms. Allocated memory is still 197.1MB. Free memory was 125.5MB in the beginning and 116.4MB in the end (delta: 9.2MB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.62ms. Allocated memory is still 197.1MB. Free memory was 116.4MB in the beginning and 113.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.29ms. Allocated memory is still 197.1MB. Free memory was 113.3MB in the beginning and 111.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 346.00ms. Allocated memory is still 197.1MB. Free memory was 111.3MB in the beginning and 96.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 396.95ms. Allocated memory is still 197.1MB. Free memory was 95.8MB in the beginning and 77.8MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 6.04ms. Allocated memory is still 197.1MB. Free memory was 77.8MB in the beginning and 77.0MB in the end (delta: 825.5kB). 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: 1587]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. 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] [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_53_bad() [L1551] int data; [L1552] data = 0 [L1554] 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] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_53d_badSink(data) [L1587] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1587]: 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, 27 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=27occurred 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 [2024-11-17 06:50:35,385 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_postdec_53_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 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 06:50:37,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 06:50:37,623 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-17 06:50:37,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 06:50:37,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 06:50:37,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-17 06:50:37,669 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 06:50:37,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 06:50:37,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 06:50:37,672 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 06:50:37,672 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 06:50:37,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 06:50:37,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 06:50:37,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 06:50:37,676 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 06:50:37,676 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 06:50:37,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 06:50:37,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 06:50:37,677 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 06:50:37,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 06:50:37,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 06:50:37,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 06:50:37,682 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 06:50:37,682 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-17 06:50:37,682 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 06:50:37,682 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 06:50:37,683 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-17 06:50:37,683 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 06:50:37,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 06:50:37,683 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 06:50:37,684 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 06:50:37,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 06:50:37,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 06:50:37,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 06:50:37,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 06:50:37,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 06:50:37,685 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 06:50:37,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 06:50:37,687 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-17 06:50:37,688 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-17 06:50:37,688 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 06:50:37,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 06:50:37,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 06:50:37,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 06:50:37,689 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a [2024-11-17 06:50:38,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 06:50:38,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 06:50:38,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 06:50:38,053 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 06:50:38,053 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 06:50:38,055 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-11-17 06:50:39,610 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 06:50:40,001 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 06:50:40,002 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-11-17 06:50:40,038 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a35a36f6/3b8eaac8800745a5a582f4ecb5f12873/FLAGda5353afa [2024-11-17 06:50:40,057 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a35a36f6/3b8eaac8800745a5a582f4ecb5f12873 [2024-11-17 06:50:40,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 06:50:40,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 06:50:40,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 06:50:40,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 06:50:40,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 06:50:40,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:50:40" (1/1) ... [2024-11-17 06:50:40,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59773c67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:40, skipping insertion in model container [2024-11-17 06:50:40,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:50:40" (1/1) ... [2024-11-17 06:50:40,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 06:50:40,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 06:50:40,887 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 06:50:40,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 06:50:41,126 INFO L204 MainTranslator]: Completed translation [2024-11-17 06:50:41,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41 WrapperNode [2024-11-17 06:50:41,127 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 06:50:41,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 06:50:41,132 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 06:50:41,132 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 06:50:41,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (1/1) ... [2024-11-17 06:50:41,176 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (1/1) ... [2024-11-17 06:50:41,213 INFO L138 Inliner]: procedures = 506, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 72 [2024-11-17 06:50:41,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 06:50:41,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 06:50:41,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 06:50:41,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 06:50:41,228 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (1/1) ... [2024-11-17 06:50:41,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (1/1) ... [2024-11-17 06:50:41,232 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (1/1) ... [2024-11-17 06:50:41,261 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 06:50:41,261 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (1/1) ... [2024-11-17 06:50:41,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (1/1) ... [2024-11-17 06:50:41,278 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (1/1) ... [2024-11-17 06:50:41,283 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (1/1) ... [2024-11-17 06:50:41,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (1/1) ... [2024-11-17 06:50:41,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (1/1) ... [2024-11-17 06:50:41,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 06:50:41,299 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 06:50:41,299 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 06:50:41,299 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 06:50:41,300 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (1/1) ... [2024-11-17 06:50:41,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 06:50:41,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 06:50:41,343 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 06:50:41,351 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 06:50:41,395 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-17 06:50:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-17 06:50:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-17 06:50:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 06:50:41,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 06:50:41,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 06:50:41,550 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 06:50:41,553 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 06:50:41,730 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-17 06:50:41,731 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 06:50:41,742 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 06:50:41,744 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 06:50:41,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:50:41 BoogieIcfgContainer [2024-11-17 06:50:41,744 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 06:50:41,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 06:50:41,748 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 06:50:41,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 06:50:41,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 06:50:40" (1/3) ... [2024-11-17 06:50:41,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c78df6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:50:41, skipping insertion in model container [2024-11-17 06:50:41,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:50:41" (2/3) ... [2024-11-17 06:50:41,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c78df6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:50:41, skipping insertion in model container [2024-11-17 06:50:41,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:50:41" (3/3) ... [2024-11-17 06:50:41,755 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-11-17 06:50:41,773 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 06:50:41,774 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 06:50:41,868 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 06:50:41,874 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;@87ea9ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 06:50:41,875 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-17 06:50:41,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 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 06:50:41,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-17 06:50:41,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 06:50:41,889 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 06:50:41,889 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-17 06:50:41,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 06:50:41,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1633837687, now seen corresponding path program 1 times [2024-11-17 06:50:41,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 06:50:41,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510439841] [2024-11-17 06:50:41,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 06:50:41,908 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 06:50:41,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 06:50:41,911 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 06:50:41,912 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 06:50:42,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 06:50:42,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 06:50:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 06:50:42,119 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-17 06:50:42,120 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 06:50:42,121 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-17 06:50:42,123 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-17 06:50:42,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-17 06:50:42,324 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 06:50:42,328 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-17 06:50:42,357 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 06:50:42,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 06:50:42 BoogieIcfgContainer [2024-11-17 06:50:42,360 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 06:50:42,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 06:50:42,362 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 06:50:42,363 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 06:50:42,363 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:50:41" (3/4) ... [2024-11-17 06:50:42,366 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 06:50:42,367 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 06:50:42,368 INFO L158 Benchmark]: Toolchain (without parser) took 2305.31ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 34.0MB in the beginning and 44.9MB in the end (delta: -10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-17 06:50:42,368 INFO L158 Benchmark]: CDTParser took 0.92ms. Allocated memory is still 52.4MB. Free memory is still 28.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 06:50:42,369 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1066.10ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 33.8MB in the beginning and 61.5MB in the end (delta: -27.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2024-11-17 06:50:42,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.26ms. Allocated memory is still 92.3MB. Free memory was 61.5MB in the beginning and 57.9MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 06:50:42,371 INFO L158 Benchmark]: Boogie Preprocessor took 82.08ms. Allocated memory is still 92.3MB. Free memory was 57.9MB in the beginning and 55.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 06:50:42,372 INFO L158 Benchmark]: IcfgBuilder took 445.51ms. Allocated memory is still 92.3MB. Free memory was 55.2MB in the beginning and 40.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-17 06:50:42,372 INFO L158 Benchmark]: TraceAbstraction took 613.26ms. Allocated memory is still 92.3MB. Free memory was 39.5MB in the beginning and 45.6MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 06:50:42,373 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 92.3MB. Free memory was 45.6MB in the beginning and 44.9MB in the end (delta: 653.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 06:50:42,377 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92ms. Allocated memory is still 52.4MB. Free memory is still 28.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1066.10ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 33.8MB in the beginning and 61.5MB in the end (delta: -27.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.26ms. Allocated memory is still 92.3MB. Free memory was 61.5MB in the beginning and 57.9MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.08ms. Allocated memory is still 92.3MB. Free memory was 57.9MB in the beginning and 55.2MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 445.51ms. Allocated memory is still 92.3MB. Free memory was 55.2MB in the beginning and 40.0MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 613.26ms. Allocated memory is still 92.3MB. Free memory was 39.5MB in the beginning and 45.6MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 92.3MB. Free memory was 45.6MB in the beginning and 44.9MB in the end (delta: 653.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1587]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. 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] [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_53_bad() [L1551] int data; [L1552] data = 0 [L1554] 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] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_53d_badSink(data) [L1587] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1587]: 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, 27 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=27occurred 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 [2024-11-17 06:50:42,415 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