./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_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_predec_45_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 933c0b3b15cb1a5d8884b98af5a907acd249944f8667b7429c689a9258cb74ed --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 06:51:30,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 06:51:31,012 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-17 06:51:31,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 06:51:31,018 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 06:51:31,045 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 06:51:31,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 06:51:31,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 06:51:31,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 06:51:31,048 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 06:51:31,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 06:51:31,049 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 06:51:31,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 06:51:31,050 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 06:51:31,051 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 06:51:31,052 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 06:51:31,052 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 06:51:31,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 06:51:31,053 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 06:51:31,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 06:51:31,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 06:51:31,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 06:51:31,054 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 06:51:31,054 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 06:51:31,054 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 06:51:31,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 06:51:31,055 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 06:51:31,055 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 06:51:31,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 06:51:31,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 06:51:31,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 06:51:31,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 06:51:31,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 06:51:31,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 06:51:31,057 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 06:51:31,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 06:51:31,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 06:51:31,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 06:51:31,058 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 06:51:31,058 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 06:51:31,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 06:51:31,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 933c0b3b15cb1a5d8884b98af5a907acd249944f8667b7429c689a9258cb74ed [2024-11-17 06:51:31,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 06:51:31,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 06:51:31,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 06:51:31,370 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 06:51:31,371 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 06:51:31,372 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i [2024-11-17 06:51:32,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 06:51:33,115 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 06:51:33,115 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i [2024-11-17 06:51:33,139 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b711f86e5/f2d9f896bfcd45a1927794af12845776/FLAG485790e96 [2024-11-17 06:51:33,378 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b711f86e5/f2d9f896bfcd45a1927794af12845776 [2024-11-17 06:51:33,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 06:51:33,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 06:51:33,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 06:51:33,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 06:51:33,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 06:51:33,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:51:33" (1/1) ... [2024-11-17 06:51:33,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc6cf1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:33, skipping insertion in model container [2024-11-17 06:51:33,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:51:33" (1/1) ... [2024-11-17 06:51:33,459 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 06:51:34,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 06:51:34,226 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 06:51:34,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 06:51:34,421 INFO L204 MainTranslator]: Completed translation [2024-11-17 06:51:34,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34 WrapperNode [2024-11-17 06:51:34,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 06:51:34,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 06:51:34,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 06:51:34,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 06:51:34,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (1/1) ... [2024-11-17 06:51:34,456 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (1/1) ... [2024-11-17 06:51:34,477 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-17 06:51:34,478 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 06:51:34,478 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 06:51:34,478 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 06:51:34,479 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 06:51:34,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (1/1) ... [2024-11-17 06:51:34,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (1/1) ... [2024-11-17 06:51:34,489 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (1/1) ... [2024-11-17 06:51:34,504 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 06:51:34,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (1/1) ... [2024-11-17 06:51:34,505 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (1/1) ... [2024-11-17 06:51:34,516 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (1/1) ... [2024-11-17 06:51:34,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (1/1) ... [2024-11-17 06:51:34,517 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (1/1) ... [2024-11-17 06:51:34,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (1/1) ... [2024-11-17 06:51:34,524 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 06:51:34,525 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 06:51:34,525 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 06:51:34,526 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 06:51:34,526 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (1/1) ... [2024-11-17 06:51:34,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 06:51:34,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 06:51:34,564 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 06:51:34,570 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 06:51:34,610 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-17 06:51:34,611 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-17 06:51:34,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 06:51:34,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 06:51:34,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 06:51:34,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 06:51:34,865 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 06:51:34,867 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 06:51:34,985 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-17 06:51:34,986 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 06:51:34,998 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 06:51:34,998 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 06:51:35,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:51:35 BoogieIcfgContainer [2024-11-17 06:51:35,000 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 06:51:35,002 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 06:51:35,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 06:51:35,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 06:51:35,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 06:51:33" (1/3) ... [2024-11-17 06:51:35,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dda5186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:51:35, skipping insertion in model container [2024-11-17 06:51:35,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:34" (2/3) ... [2024-11-17 06:51:35,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dda5186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:51:35, skipping insertion in model container [2024-11-17 06:51:35,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:51:35" (3/3) ... [2024-11-17 06:51:35,010 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_45_bad.i [2024-11-17 06:51:35,025 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 06:51:35,026 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 06:51:35,078 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 06:51:35,083 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;@46afec25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 06:51:35,083 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-17 06:51:35,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 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 06:51:35,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-17 06:51:35,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 06:51:35,094 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 06:51:35,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-17 06:51:35,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 06:51:35,098 INFO L85 PathProgramCache]: Analyzing trace with hash 643833139, now seen corresponding path program 1 times [2024-11-17 06:51:35,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 06:51:35,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810318049] [2024-11-17 06:51:35,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 06:51:35,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 06:51:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 06:51:35,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 06:51:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 06:51:35,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 06:51:35,307 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 06:51:35,309 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-17 06:51:35,311 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-17 06:51:35,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 06:51:35,315 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-17 06:51:35,334 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 06:51:35,336 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 06:51:35 BoogieIcfgContainer [2024-11-17 06:51:35,336 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 06:51:35,336 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 06:51:35,336 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 06:51:35,337 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 06:51:35,337 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:51:35" (3/4) ... [2024-11-17 06:51:35,339 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 06:51:35,340 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 06:51:35,340 INFO L158 Benchmark]: Toolchain (without parser) took 1959.03ms. Allocated memory is still 165.7MB. Free memory was 129.1MB in the beginning and 104.1MB in the end (delta: 25.0MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2024-11-17 06:51:35,341 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 06:51:35,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1039.77ms. Allocated memory is still 165.7MB. Free memory was 129.1MB in the beginning and 62.0MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-17 06:51:35,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.68ms. Allocated memory is still 165.7MB. Free memory was 62.0MB in the beginning and 58.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 06:51:35,342 INFO L158 Benchmark]: Boogie Preprocessor took 46.46ms. Allocated memory is still 165.7MB. Free memory was 58.8MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 06:51:35,343 INFO L158 Benchmark]: IcfgBuilder took 474.82ms. Allocated memory is still 165.7MB. Free memory was 56.7MB in the beginning and 124.0MB in the end (delta: -67.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-17 06:51:35,343 INFO L158 Benchmark]: TraceAbstraction took 334.23ms. Allocated memory is still 165.7MB. Free memory was 124.0MB in the beginning and 105.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-17 06:51:35,344 INFO L158 Benchmark]: Witness Printer took 3.24ms. Allocated memory is still 165.7MB. Free memory was 105.1MB in the beginning and 104.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 06:51:35,346 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1039.77ms. Allocated memory is still 165.7MB. Free memory was 129.1MB in the beginning and 62.0MB in the end (delta: 67.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.68ms. Allocated memory is still 165.7MB. Free memory was 62.0MB in the beginning and 58.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.46ms. Allocated memory is still 165.7MB. Free memory was 58.8MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 474.82ms. Allocated memory is still 165.7MB. Free memory was 56.7MB in the beginning and 124.0MB in the end (delta: -67.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 334.23ms. Allocated memory is still 165.7MB. Free memory was 124.0MB in the beginning and 105.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 3.24ms. Allocated memory is still 165.7MB. Free memory was 105.1MB in the beginning and 104.1MB in the end (delta: 1.1MB). 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_fgets_predec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE191_Integer_Underflow__int_fgets_predec_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_predec_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: 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, 25 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=25occurred 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 06:51:35,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_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 933c0b3b15cb1a5d8884b98af5a907acd249944f8667b7429c689a9258cb74ed --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 06:51:37,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 06:51:37,679 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-17 06:51:37,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 06:51:37,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 06:51:37,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-17 06:51:37,716 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 06:51:37,716 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 06:51:37,717 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 06:51:37,717 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 06:51:37,717 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 06:51:37,718 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 06:51:37,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 06:51:37,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 06:51:37,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 06:51:37,720 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 06:51:37,722 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 06:51:37,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 06:51:37,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 06:51:37,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 06:51:37,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 06:51:37,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 06:51:37,725 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 06:51:37,725 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-17 06:51:37,725 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 06:51:37,726 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 06:51:37,726 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-17 06:51:37,726 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 06:51:37,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 06:51:37,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 06:51:37,727 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 06:51:37,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 06:51:37,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 06:51:37,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 06:51:37,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 06:51:37,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 06:51:37,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 06:51:37,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 06:51:37,729 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-17 06:51:37,729 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-17 06:51:37,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 06:51:37,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 06:51:37,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 06:51:37,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 06:51:37,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 933c0b3b15cb1a5d8884b98af5a907acd249944f8667b7429c689a9258cb74ed [2024-11-17 06:51:38,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 06:51:38,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 06:51:38,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 06:51:38,061 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 06:51:38,061 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 06:51:38,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i [2024-11-17 06:51:39,622 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 06:51:39,966 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 06:51:39,966 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i [2024-11-17 06:51:39,998 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d60af78/c2135f2b9f764529bc1b55975a69b456/FLAG2b4b4acd2 [2024-11-17 06:51:40,204 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18d60af78/c2135f2b9f764529bc1b55975a69b456 [2024-11-17 06:51:40,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 06:51:40,208 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 06:51:40,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 06:51:40,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 06:51:40,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 06:51:40,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:51:40" (1/1) ... [2024-11-17 06:51:40,216 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4addcb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:40, skipping insertion in model container [2024-11-17 06:51:40,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:51:40" (1/1) ... [2024-11-17 06:51:40,299 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 06:51:41,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 06:51:41,144 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 06:51:41,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 06:51:41,354 INFO L204 MainTranslator]: Completed translation [2024-11-17 06:51:41,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41 WrapperNode [2024-11-17 06:51:41,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 06:51:41,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 06:51:41,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 06:51:41,359 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 06:51:41,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (1/1) ... [2024-11-17 06:51:41,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (1/1) ... [2024-11-17 06:51:41,428 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-17 06:51:41,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 06:51:41,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 06:51:41,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 06:51:41,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 06:51:41,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (1/1) ... [2024-11-17 06:51:41,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (1/1) ... [2024-11-17 06:51:41,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (1/1) ... [2024-11-17 06:51:41,457 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 06:51:41,457 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (1/1) ... [2024-11-17 06:51:41,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (1/1) ... [2024-11-17 06:51:41,467 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (1/1) ... [2024-11-17 06:51:41,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (1/1) ... [2024-11-17 06:51:41,473 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (1/1) ... [2024-11-17 06:51:41,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (1/1) ... [2024-11-17 06:51:41,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 06:51:41,480 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 06:51:41,480 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 06:51:41,480 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 06:51:41,481 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (1/1) ... [2024-11-17 06:51:41,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 06:51:41,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 06:51:41,512 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 06:51:41,530 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 06:51:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-17 06:51:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-17 06:51:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-17 06:51:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 06:51:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 06:51:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 06:51:41,756 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 06:51:41,758 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 06:51:41,914 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-17 06:51:41,914 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 06:51:41,928 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 06:51:41,929 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 06:51:41,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:51:41 BoogieIcfgContainer [2024-11-17 06:51:41,929 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 06:51:41,931 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 06:51:41,932 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 06:51:41,935 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 06:51:41,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 06:51:40" (1/3) ... [2024-11-17 06:51:41,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b97f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:51:41, skipping insertion in model container [2024-11-17 06:51:41,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:51:41" (2/3) ... [2024-11-17 06:51:41,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b97f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:51:41, skipping insertion in model container [2024-11-17 06:51:41,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:51:41" (3/3) ... [2024-11-17 06:51:41,940 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_45_bad.i [2024-11-17 06:51:41,957 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 06:51:41,957 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 06:51:42,025 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 06:51:42,032 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;@117cc8a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 06:51:42,034 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-17 06:51:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 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 06:51:42,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-17 06:51:42,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 06:51:42,046 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 06:51:42,047 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-17 06:51:42,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 06:51:42,055 INFO L85 PathProgramCache]: Analyzing trace with hash 643833139, now seen corresponding path program 1 times [2024-11-17 06:51:42,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 06:51:42,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017722747] [2024-11-17 06:51:42,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 06:51:42,070 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 06:51:42,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 06:51:42,073 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 06:51:42,074 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 06:51:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 06:51:42,214 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 06:51:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 06:51:42,280 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-17 06:51:42,283 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 06:51:42,284 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-17 06:51:42,286 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-17 06:51:42,293 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 06:51:42,487 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 06:51:42,491 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-17 06:51:42,511 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 06:51:42,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 06:51:42 BoogieIcfgContainer [2024-11-17 06:51:42,513 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 06:51:42,514 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 06:51:42,514 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 06:51:42,514 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 06:51:42,514 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 06:51:41" (3/4) ... [2024-11-17 06:51:42,517 INFO L146 WitnessPrinter]: No result that supports witness generation found [2024-11-17 06:51:42,525 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 06:51:42,527 INFO L158 Benchmark]: Toolchain (without parser) took 2318.90ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 36.9MB in the beginning and 57.6MB in the end (delta: -20.7MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2024-11-17 06:51:42,527 INFO L158 Benchmark]: CDTParser took 0.97ms. Allocated memory is still 48.2MB. Free memory is still 28.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 06:51:42,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1146.23ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 36.9MB in the beginning and 44.1MB in the end (delta: -7.2MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2024-11-17 06:51:42,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.95ms. Allocated memory is still 88.1MB. Free memory was 44.1MB in the beginning and 41.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 06:51:42,530 INFO L158 Benchmark]: Boogie Preprocessor took 50.03ms. Allocated memory is still 88.1MB. Free memory was 41.2MB in the beginning and 38.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 06:51:42,531 INFO L158 Benchmark]: IcfgBuilder took 449.62ms. Allocated memory is still 88.1MB. Free memory was 38.3MB in the beginning and 46.3MB in the end (delta: -8.0MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-11-17 06:51:42,531 INFO L158 Benchmark]: TraceAbstraction took 582.03ms. Allocated memory is still 88.1MB. Free memory was 45.7MB in the beginning and 26.7MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-17 06:51:42,532 INFO L158 Benchmark]: Witness Printer took 12.26ms. Allocated memory is still 88.1MB. Free memory was 26.7MB in the beginning and 57.6MB in the end (delta: -30.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 06:51:42,534 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97ms. Allocated memory is still 48.2MB. Free memory is still 28.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1146.23ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 36.9MB in the beginning and 44.1MB in the end (delta: -7.2MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.95ms. Allocated memory is still 88.1MB. Free memory was 44.1MB in the beginning and 41.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.03ms. Allocated memory is still 88.1MB. Free memory was 41.2MB in the beginning and 38.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 449.62ms. Allocated memory is still 88.1MB. Free memory was 38.3MB in the beginning and 46.3MB in the end (delta: -8.0MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 582.03ms. Allocated memory is still 88.1MB. Free memory was 45.7MB in the beginning and 26.7MB in the end (delta: 19.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 12.26ms. Allocated memory is still 88.1MB. Free memory was 26.7MB in the beginning and 57.6MB in the end (delta: -30.9MB). Peak memory consumption was 4.2MB. 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_fgets_predec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE191_Integer_Underflow__int_fgets_predec_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_predec_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: 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, 25 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=25occurred 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 06:51:42,563 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