./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_multiply_61_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 09f30413585882b06ba1473205f59da9954b57418a2c461dcc53e903d16bf086 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 05:18:48,714 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 05:18:48,763 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-09 05:18:48,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 05:18:48,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 05:18:48,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 05:18:48,782 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 05:18:48,782 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 05:18:48,782 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 05:18:48,783 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 05:18:48,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 05:18:48,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 05:18:48,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 05:18:48,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 05:18:48,783 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 05:18:48,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 05:18:48,783 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 05:18:48,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 05:18:48,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 05:18:48,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 05:18:48,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 05:18:48,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 05:18:48,783 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 05:18:48,783 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 05:18:48,784 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:18:48,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 05:18:48,784 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 09f30413585882b06ba1473205f59da9954b57418a2c461dcc53e903d16bf086 [2025-03-09 05:18:48,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 05:18:49,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 05:18:49,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 05:18:49,003 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 05:18:49,003 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 05:18:49,004 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2025-03-09 05:18:50,136 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c139cfbe/52c749926b9e448db4cf03a41c1631d0/FLAG67283dfc4 [2025-03-09 05:18:50,516 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 05:18:50,518 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2025-03-09 05:18:50,533 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c139cfbe/52c749926b9e448db4cf03a41c1631d0/FLAG67283dfc4 [2025-03-09 05:18:50,547 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c139cfbe/52c749926b9e448db4cf03a41c1631d0 [2025-03-09 05:18:50,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 05:18:50,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 05:18:50,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 05:18:50,553 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 05:18:50,556 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 05:18:50,557 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:18:50" (1/1) ... [2025-03-09 05:18:50,558 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b69775d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:50, skipping insertion in model container [2025-03-09 05:18:50,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:18:50" (1/1) ... [2025-03-09 05:18:50,590 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 05:18:51,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:18:51,056 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 05:18:51,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:18:51,195 INFO L204 MainTranslator]: Completed translation [2025-03-09 05:18:51,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51 WrapperNode [2025-03-09 05:18:51,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 05:18:51,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 05:18:51,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 05:18:51,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 05:18:51,202 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (1/1) ... [2025-03-09 05:18:51,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (1/1) ... [2025-03-09 05:18:51,234 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2025-03-09 05:18:51,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 05:18:51,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 05:18:51,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 05:18:51,235 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 05:18:51,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (1/1) ... [2025-03-09 05:18:51,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (1/1) ... [2025-03-09 05:18:51,244 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (1/1) ... [2025-03-09 05:18:51,256 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]. [2025-03-09 05:18:51,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (1/1) ... [2025-03-09 05:18:51,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (1/1) ... [2025-03-09 05:18:51,259 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (1/1) ... [2025-03-09 05:18:51,260 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (1/1) ... [2025-03-09 05:18:51,260 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (1/1) ... [2025-03-09 05:18:51,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (1/1) ... [2025-03-09 05:18:51,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 05:18:51,263 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 05:18:51,263 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 05:18:51,263 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 05:18:51,263 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (1/1) ... [2025-03-09 05:18:51,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:18:51,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:18:51,287 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) [2025-03-09 05:18:51,289 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 [2025-03-09 05:18:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-09 05:18:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-09 05:18:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 05:18:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 05:18:51,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 05:18:51,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 05:18:51,402 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 05:18:51,404 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 05:18:51,483 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2025-03-09 05:18:51,483 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 05:18:51,488 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 05:18:51,489 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 05:18:51,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:18:51 BoogieIcfgContainer [2025-03-09 05:18:51,489 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 05:18:51,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 05:18:51,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 05:18:51,494 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 05:18:51,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 05:18:50" (1/3) ... [2025-03-09 05:18:51,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0d51bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:18:51, skipping insertion in model container [2025-03-09 05:18:51,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:51" (2/3) ... [2025-03-09 05:18:51,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d0d51bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:18:51, skipping insertion in model container [2025-03-09 05:18:51,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:18:51" (3/3) ... [2025-03-09 05:18:51,498 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2025-03-09 05:18:51,509 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 05:18:51,510 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-09 05:18:51,551 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 05:18:51,561 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;@4bff2c3c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 05:18:51,562 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-09 05:18:51,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) 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) [2025-03-09 05:18:51,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-09 05:18:51,570 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:18:51,571 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:18:51,571 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 05:18:51,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:18:51,575 INFO L85 PathProgramCache]: Analyzing trace with hash -794874828, now seen corresponding path program 1 times [2025-03-09 05:18:51,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:18:51,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170623957] [2025-03-09 05:18:51,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:18:51,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:18:51,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 05:18:51,691 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 05:18:51,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:18:51,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 05:18:51,692 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 05:18:51,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 05:18:51,716 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 05:18:51,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:18:51,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 05:18:51,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 05:18:51,739 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 05:18:51,740 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-09 05:18:51,742 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-09 05:18:51,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 05:18:51,745 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-09 05:18:51,765 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 05:18:51,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 05:18:51 BoogieIcfgContainer [2025-03-09 05:18:51,769 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 05:18:51,770 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 05:18:51,770 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 05:18:51,770 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 05:18:51,770 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:18:51" (3/4) ... [2025-03-09 05:18:51,772 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-09 05:18:51,773 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 05:18:51,774 INFO L158 Benchmark]: Toolchain (without parser) took 1222.34ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 84.1MB in the end (delta: 25.1MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2025-03-09 05:18:51,774 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:51,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 644.40ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 49.2MB in the end (delta: 60.0MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-09 05:18:51,774 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.51ms. Allocated memory is still 142.6MB. Free memory was 49.2MB in the beginning and 46.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:51,774 INFO L158 Benchmark]: Boogie Preprocessor took 26.86ms. Allocated memory is still 142.6MB. Free memory was 46.8MB in the beginning and 45.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:51,774 INFO L158 Benchmark]: IcfgBuilder took 226.63ms. Allocated memory is still 142.6MB. Free memory was 44.8MB in the beginning and 101.7MB in the end (delta: -56.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2025-03-09 05:18:51,775 INFO L158 Benchmark]: TraceAbstraction took 277.81ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 84.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 05:18:51,775 INFO L158 Benchmark]: Witness Printer took 3.19ms. Allocated memory is still 142.6MB. Free memory is still 84.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:51,776 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 644.40ms. Allocated memory is still 142.6MB. Free memory was 109.2MB in the beginning and 49.2MB in the end (delta: 60.0MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.51ms. Allocated memory is still 142.6MB. Free memory was 49.2MB in the beginning and 46.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.86ms. Allocated memory is still 142.6MB. Free memory was 46.8MB in the beginning and 45.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 226.63ms. Allocated memory is still 142.6MB. Free memory was 44.8MB in the beginning and 101.7MB in the end (delta: -56.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * TraceAbstraction took 277.81ms. Allocated memory is still 142.6MB. Free memory was 100.9MB in the beginning and 84.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.19ms. Allocated memory is still 142.6MB. Free memory is still 84.1MB. 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: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574, overapproximation of fgets at line 1572. 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] [L1563] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] 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] [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_multiply_61b_badSource(data) [L1571] 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] [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1581] return data; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_multiply_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_multiply_61b_badSource(data) [L1554] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 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: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 31 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-09 05:18:51,793 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/21.0.5-tem/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_1.6.800.v20240513-1750.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_multiply_61_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 09f30413585882b06ba1473205f59da9954b57418a2c461dcc53e903d16bf086 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 05:18:53,578 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 05:18:53,656 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-03-09 05:18:53,662 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 05:18:53,664 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 05:18:53,665 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-03-09 05:18:53,687 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 05:18:53,688 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 05:18:53,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 05:18:53,689 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 05:18:53,689 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 05:18:53,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 05:18:53,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 05:18:53,690 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 05:18:53,690 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 05:18:53,690 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 05:18:53,690 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 05:18:53,690 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 05:18:53,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 05:18:53,690 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 05:18:53,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 05:18:53,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 05:18:53,691 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 05:18:53,691 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-09 05:18:53,691 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 05:18:53,691 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-09 05:18:53,691 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 05:18:53,691 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 05:18:53,691 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 05:18:53,691 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 05:18:53,691 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 05:18:53,692 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 05:18:53,692 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 05:18:53,692 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 05:18:53,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:18:53,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 05:18:53,692 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 05:18:53,692 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 05:18:53,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 05:18:53,693 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-09 05:18:53,693 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-09 05:18:53,693 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 05:18:53,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 05:18:53,693 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 05:18:53,693 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 05:18:53,693 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 09f30413585882b06ba1473205f59da9954b57418a2c461dcc53e903d16bf086 [2025-03-09 05:18:53,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 05:18:53,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 05:18:53,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 05:18:53,937 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 05:18:53,937 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 05:18:53,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2025-03-09 05:18:55,078 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/637abc6f7/10ac8ae6c8fc45a69e341ae802b6fe00/FLAGa46e59752 [2025-03-09 05:18:55,311 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 05:18:55,312 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2025-03-09 05:18:55,334 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/637abc6f7/10ac8ae6c8fc45a69e341ae802b6fe00/FLAGa46e59752 [2025-03-09 05:18:55,638 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/637abc6f7/10ac8ae6c8fc45a69e341ae802b6fe00 [2025-03-09 05:18:55,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 05:18:55,641 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 05:18:55,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 05:18:55,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 05:18:55,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 05:18:55,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:18:55" (1/1) ... [2025-03-09 05:18:55,646 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fa8da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:55, skipping insertion in model container [2025-03-09 05:18:55,646 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:18:55" (1/1) ... [2025-03-09 05:18:55,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 05:18:56,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:18:56,195 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 05:18:56,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:18:56,351 INFO L204 MainTranslator]: Completed translation [2025-03-09 05:18:56,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56 WrapperNode [2025-03-09 05:18:56,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 05:18:56,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 05:18:56,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 05:18:56,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 05:18:56,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (1/1) ... [2025-03-09 05:18:56,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (1/1) ... [2025-03-09 05:18:56,391 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2025-03-09 05:18:56,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 05:18:56,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 05:18:56,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 05:18:56,393 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 05:18:56,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (1/1) ... [2025-03-09 05:18:56,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (1/1) ... [2025-03-09 05:18:56,401 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (1/1) ... [2025-03-09 05:18:56,410 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]. [2025-03-09 05:18:56,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (1/1) ... [2025-03-09 05:18:56,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (1/1) ... [2025-03-09 05:18:56,416 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (1/1) ... [2025-03-09 05:18:56,417 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (1/1) ... [2025-03-09 05:18:56,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (1/1) ... [2025-03-09 05:18:56,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (1/1) ... [2025-03-09 05:18:56,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 05:18:56,422 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 05:18:56,422 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 05:18:56,436 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 05:18:56,436 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (1/1) ... [2025-03-09 05:18:56,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:18:56,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:18:56,466 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) [2025-03-09 05:18:56,468 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 [2025-03-09 05:18:56,485 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-09 05:18:56,486 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-09 05:18:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-09 05:18:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 05:18:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 05:18:56,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 05:18:56,587 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 05:18:56,588 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 05:18:56,704 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2025-03-09 05:18:56,705 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 05:18:56,711 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 05:18:56,711 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 05:18:56,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:18:56 BoogieIcfgContainer [2025-03-09 05:18:56,712 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 05:18:56,713 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 05:18:56,713 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 05:18:56,717 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 05:18:56,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 05:18:55" (1/3) ... [2025-03-09 05:18:56,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0f6a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:18:56, skipping insertion in model container [2025-03-09 05:18:56,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:18:56" (2/3) ... [2025-03-09 05:18:56,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0f6a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:18:56, skipping insertion in model container [2025-03-09 05:18:56,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:18:56" (3/3) ... [2025-03-09 05:18:56,720 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i [2025-03-09 05:18:56,730 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 05:18:56,731 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_61_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-09 05:18:56,766 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 05:18:56,774 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;@1c646044, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 05:18:56,774 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-09 05:18:56,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) 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) [2025-03-09 05:18:56,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-09 05:18:56,780 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:18:56,780 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:18:56,780 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 05:18:56,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:18:56,783 INFO L85 PathProgramCache]: Analyzing trace with hash -794874828, now seen corresponding path program 1 times [2025-03-09 05:18:56,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-09 05:18:56,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [373314945] [2025-03-09 05:18:56,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:18:56,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:18:56,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:18:56,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 05:18:56,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 05:18:56,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 05:18:56,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 05:18:56,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:18:56,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 05:18:56,904 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 05:18:56,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 05:18:56,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 05:18:56,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:18:56,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 05:18:56,939 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-09 05:18:56,940 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 05:18:56,941 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-09 05:18:56,943 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-09 05:18:56,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-09 05:18:57,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:18:57,150 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-09 05:18:57,166 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 05:18:57,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 05:18:57 BoogieIcfgContainer [2025-03-09 05:18:57,171 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 05:18:57,171 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 05:18:57,171 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 05:18:57,172 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 05:18:57,173 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:18:56" (3/4) ... [2025-03-09 05:18:57,174 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-09 05:18:57,175 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 05:18:57,176 INFO L158 Benchmark]: Toolchain (without parser) took 1534.86ms. Allocated memory is still 100.7MB. Free memory was 72.3MB in the beginning and 38.7MB in the end (delta: 33.6MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2025-03-09 05:18:57,176 INFO L158 Benchmark]: CDTParser took 1.82ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:57,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 710.53ms. Allocated memory is still 100.7MB. Free memory was 72.3MB in the beginning and 42.7MB in the end (delta: 29.6MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2025-03-09 05:18:57,176 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.19ms. Allocated memory is still 100.7MB. Free memory was 42.7MB in the beginning and 40.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:57,177 INFO L158 Benchmark]: Boogie Preprocessor took 29.64ms. Allocated memory is still 100.7MB. Free memory was 40.0MB in the beginning and 38.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:57,177 INFO L158 Benchmark]: IcfgBuilder took 289.18ms. Allocated memory is still 100.7MB. Free memory was 38.1MB in the beginning and 56.0MB in the end (delta: -17.9MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2025-03-09 05:18:57,177 INFO L158 Benchmark]: TraceAbstraction took 457.27ms. Allocated memory is still 100.7MB. Free memory was 55.5MB in the beginning and 39.2MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 05:18:57,178 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 100.7MB. Free memory was 39.2MB in the beginning and 38.7MB in the end (delta: 523.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:18:57,179 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.82ms. Allocated memory is still 83.9MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 710.53ms. Allocated memory is still 100.7MB. Free memory was 72.3MB in the beginning and 42.7MB in the end (delta: 29.6MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.19ms. Allocated memory is still 100.7MB. Free memory was 42.7MB in the beginning and 40.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.64ms. Allocated memory is still 100.7MB. Free memory was 40.0MB in the beginning and 38.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 289.18ms. Allocated memory is still 100.7MB. Free memory was 38.1MB in the beginning and 56.0MB in the end (delta: -17.9MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 457.27ms. Allocated memory is still 100.7MB. Free memory was 55.5MB in the beginning and 39.2MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 100.7MB. Free memory was 39.2MB in the beginning and 38.7MB in the end (delta: 523.8kB). 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: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574, overapproximation of fgets at line 1572. 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] [L1563] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] 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] [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_multiply_61b_badSource(data) [L1571] 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] [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1581] return data; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_multiply_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_multiply_61b_badSource(data) [L1554] COND TRUE data < 0 VAL [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] [L1556] data * 2 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: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 31 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-09 05:18:57,192 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