./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_06_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_06_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 752d2212a67a1ee1e01a0dcea11800cf454a0491edd7407e01b8d1e8fdd60f76 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 17:21:27,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 17:21:27,803 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-06 17:21:27,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 17:21:27,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 17:21:27,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 17:21:27,821 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 17:21:27,821 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 17:21:27,822 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 17:21:27,822 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 17:21:27,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 17:21:27,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 17:21:27,822 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 17:21:27,822 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 17:21:27,822 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 17:21:27,823 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 17:21:27,823 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 17:21:27,823 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 17:21:27,823 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 17:21:27,823 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 17:21:27,823 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 17:21:27,823 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 17:21:27,823 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 17:21:27,823 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 17:21:27,823 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 17:21:27,823 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 17:21:27,824 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 17:21:27,824 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 17:21:27,824 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 17:21:27,824 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 17:21:27,824 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 17:21:27,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 17:21:27,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 17:21:27,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 17:21:27,824 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 17:21:27,824 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 17:21:27,825 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 17:21:27,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 17:21:27,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 17:21:27,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 17:21:27,825 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 17:21:27,825 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 17:21:27,825 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-jdk21/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 -> 752d2212a67a1ee1e01a0dcea11800cf454a0491edd7407e01b8d1e8fdd60f76 [2025-02-06 17:21:28,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 17:21:28,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 17:21:28,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 17:21:28,044 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 17:21:28,045 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 17:21:28,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_06_bad.i [2025-02-06 17:21:29,194 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7622ba736/7a2b46365d024c3da0c60663eb7d5d4b/FLAGc3e8d2d74 [2025-02-06 17:21:29,587 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 17:21:29,588 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_06_bad.i [2025-02-06 17:21:29,610 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7622ba736/7a2b46365d024c3da0c60663eb7d5d4b/FLAGc3e8d2d74 [2025-02-06 17:21:29,772 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7622ba736/7a2b46365d024c3da0c60663eb7d5d4b [2025-02-06 17:21:29,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 17:21:29,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 17:21:29,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 17:21:29,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 17:21:29,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 17:21:29,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:21:29" (1/1) ... [2025-02-06 17:21:29,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53dbe50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:29, skipping insertion in model container [2025-02-06 17:21:29,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:21:29" (1/1) ... [2025-02-06 17:21:29,820 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 17:21:30,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 17:21:30,373 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 17:21:30,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 17:21:30,563 INFO L204 MainTranslator]: Completed translation [2025-02-06 17:21:30,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30 WrapperNode [2025-02-06 17:21:30,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 17:21:30,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 17:21:30,565 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 17:21:30,565 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 17:21:30,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (1/1) ... [2025-02-06 17:21:30,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (1/1) ... [2025-02-06 17:21:30,611 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2025-02-06 17:21:30,612 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 17:21:30,612 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 17:21:30,613 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 17:21:30,613 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 17:21:30,618 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (1/1) ... [2025-02-06 17:21:30,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (1/1) ... [2025-02-06 17:21:30,620 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (1/1) ... [2025-02-06 17:21:30,630 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]. [2025-02-06 17:21:30,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (1/1) ... [2025-02-06 17:21:30,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (1/1) ... [2025-02-06 17:21:30,633 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (1/1) ... [2025-02-06 17:21:30,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (1/1) ... [2025-02-06 17:21:30,634 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (1/1) ... [2025-02-06 17:21:30,635 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (1/1) ... [2025-02-06 17:21:30,636 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 17:21:30,637 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 17:21:30,637 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 17:21:30,637 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 17:21:30,638 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (1/1) ... [2025-02-06 17:21:30,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 17:21:30,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:21:30,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 17:21:30,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 17:21:30,680 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-06 17:21:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-06 17:21:30,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 17:21:30,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 17:21:30,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 17:21:30,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 17:21:30,798 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 17:21:30,799 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 17:21:30,869 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2025-02-06 17:21:30,869 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 17:21:30,877 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 17:21:30,877 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 17:21:30,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:21:30 BoogieIcfgContainer [2025-02-06 17:21:30,878 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 17:21:30,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 17:21:30,880 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 17:21:30,883 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 17:21:30,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:21:29" (1/3) ... [2025-02-06 17:21:30,884 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7905c66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:21:30, skipping insertion in model container [2025-02-06 17:21:30,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:30" (2/3) ... [2025-02-06 17:21:30,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7905c66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:21:30, skipping insertion in model container [2025-02-06 17:21:30,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:21:30" (3/3) ... [2025-02-06 17:21:30,887 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_06_bad.i [2025-02-06 17:21:30,897 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 17:21:30,899 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_06_bad.i that has 2 procedures, 25 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 17:21:30,933 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 17:21:30,941 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;@21f4851f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 17:21:30,941 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 17:21:30,944 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 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) [2025-02-06 17:21:30,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 17:21:30,954 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:21:30,955 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:21:30,955 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 17:21:30,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:21:30,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1569615730, now seen corresponding path program 1 times [2025-02-06 17:21:30,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:21:30,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130955425] [2025-02-06 17:21:30,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:21:30,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:21:31,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 17:21:31,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 17:21:31,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:21:31,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:21:31,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:21:31,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:21:31,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130955425] [2025-02-06 17:21:31,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130955425] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:21:31,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:21:31,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 17:21:31,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942193001] [2025-02-06 17:21:31,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:21:31,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:21:31,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:21:31,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:21:31,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:21:31,136 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 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) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:21:31,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:21:31,151 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2025-02-06 17:21:31,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:21:31,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-02-06 17:21:31,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:21:31,156 INFO L225 Difference]: With dead ends: 42 [2025-02-06 17:21:31,156 INFO L226 Difference]: Without dead ends: 18 [2025-02-06 17:21:31,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:21:31,159 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:21:31,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:21:31,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-02-06 17:21:31,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-02-06 17:21:31,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 17:21:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2025-02-06 17:21:31,180 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2025-02-06 17:21:31,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:21:31,181 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2025-02-06 17:21:31,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:21:31,181 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2025-02-06 17:21:31,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-06 17:21:31,182 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:21:31,182 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:21:31,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 17:21:31,182 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 17:21:31,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:21:31,183 INFO L85 PathProgramCache]: Analyzing trace with hash 841459540, now seen corresponding path program 1 times [2025-02-06 17:21:31,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:21:31,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476730146] [2025-02-06 17:21:31,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:21:31,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:21:31,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 17:21:31,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 17:21:31,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:21:31,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 17:21:31,209 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 17:21:31,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 17:21:31,218 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 17:21:31,218 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:21:31,218 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 17:21:31,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 17:21:31,232 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 17:21:31,233 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-06 17:21:31,234 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-06 17:21:31,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 17:21:31,236 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 17:21:31,248 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 17:21:31,249 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 05:21:31 BoogieIcfgContainer [2025-02-06 17:21:31,250 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 17:21:31,250 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 17:21:31,250 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 17:21:31,250 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 17:21:31,251 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:21:30" (3/4) ... [2025-02-06 17:21:31,254 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 17:21:31,255 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 17:21:31,256 INFO L158 Benchmark]: Toolchain (without parser) took 1479.68ms. Allocated memory is still 142.6MB. Free memory was 111.4MB in the beginning and 74.6MB in the end (delta: 36.9MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2025-02-06 17:21:31,256 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 226.5MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:21:31,256 INFO L158 Benchmark]: CACSL2BoogieTranslator took 787.30ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 51.3MB in the end (delta: 59.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-06 17:21:31,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.39ms. Allocated memory is still 142.6MB. Free memory was 51.3MB in the beginning and 48.4MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 17:21:31,256 INFO L158 Benchmark]: Boogie Preprocessor took 24.10ms. Allocated memory is still 142.6MB. Free memory was 48.4MB in the beginning and 47.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:21:31,257 INFO L158 Benchmark]: IcfgBuilder took 241.07ms. Allocated memory is still 142.6MB. Free memory was 46.8MB in the beginning and 103.6MB in the end (delta: -56.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2025-02-06 17:21:31,257 INFO L158 Benchmark]: TraceAbstraction took 369.34ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 74.6MB in the end (delta: 28.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 17:21:31,257 INFO L158 Benchmark]: Witness Printer took 4.80ms. Allocated memory is still 142.6MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:21:31,259 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 226.5MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 787.30ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 51.3MB in the end (delta: 59.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.39ms. Allocated memory is still 142.6MB. Free memory was 51.3MB in the beginning and 48.4MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.10ms. Allocated memory is still 142.6MB. Free memory was 48.4MB in the beginning and 47.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 241.07ms. Allocated memory is still 142.6MB. Free memory was 46.8MB in the beginning and 103.6MB in the end (delta: -56.8MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * TraceAbstraction took 369.34ms. Allocated memory is still 142.6MB. Free memory was 102.8MB in the beginning and 74.6MB in the end (delta: 28.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.80ms. Allocated memory is still 142.6MB. Free memory is still 74.6MB. 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: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of fgets at line 1557. 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 const int STATIC_CONST_FIVE = 5; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1579] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL CWE191_Integer_Underflow__int_fgets_multiply_06_bad() [L1551] int data; [L1552] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] COND TRUE STATIC_CONST_FIVE==5 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1567] COND TRUE STATIC_CONST_FIVE==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1571]: 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: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 27 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2025-02-06 17:21:31,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_06_bad.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 752d2212a67a1ee1e01a0dcea11800cf454a0491edd7407e01b8d1e8fdd60f76 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 17:21:33,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 17:21:33,228 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-02-06 17:21:33,234 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 17:21:33,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 17:21:33,236 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-02-06 17:21:33,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 17:21:33,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 17:21:33,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 17:21:33,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 17:21:33,288 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 17:21:33,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 17:21:33,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 17:21:33,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 17:21:33,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 17:21:33,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 17:21:33,291 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 17:21:33,292 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 17:21:33,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 17:21:33,292 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 17:21:33,292 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-jdk21/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 -> 752d2212a67a1ee1e01a0dcea11800cf454a0491edd7407e01b8d1e8fdd60f76 [2025-02-06 17:21:33,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 17:21:33,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 17:21:33,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 17:21:33,474 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 17:21:33,474 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 17:21:33,475 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_06_bad.i [2025-02-06 17:21:34,650 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/896130e45/65f6f358cfdc4bdea567a799e50951fb/FLAGf14819899 [2025-02-06 17:21:34,972 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 17:21:34,973 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_06_bad.i [2025-02-06 17:21:34,985 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/896130e45/65f6f358cfdc4bdea567a799e50951fb/FLAGf14819899 [2025-02-06 17:21:35,217 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/896130e45/65f6f358cfdc4bdea567a799e50951fb [2025-02-06 17:21:35,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 17:21:35,220 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 17:21:35,221 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 17:21:35,221 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 17:21:35,224 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 17:21:35,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:35,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46382f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35, skipping insertion in model container [2025-02-06 17:21:35,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:35,261 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 17:21:35,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 17:21:35,800 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 17:21:35,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 17:21:35,967 INFO L204 MainTranslator]: Completed translation [2025-02-06 17:21:35,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35 WrapperNode [2025-02-06 17:21:35,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 17:21:35,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 17:21:35,969 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 17:21:35,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 17:21:35,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:35,997 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:36,017 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2025-02-06 17:21:36,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 17:21:36,018 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 17:21:36,018 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 17:21:36,018 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 17:21:36,026 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:36,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:36,032 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:36,049 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]. [2025-02-06 17:21:36,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:36,050 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:36,058 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:36,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:36,063 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:36,064 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:36,069 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 17:21:36,070 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 17:21:36,070 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 17:21:36,070 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 17:21:36,070 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (1/1) ... [2025-02-06 17:21:36,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 17:21:36,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:21:36,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 17:21:36,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 17:21:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-06 17:21:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-06 17:21:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 17:21:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 17:21:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 17:21:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 17:21:36,278 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 17:21:36,280 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 17:21:36,387 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2025-02-06 17:21:36,390 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 17:21:36,396 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 17:21:36,397 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 17:21:36,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:21:36 BoogieIcfgContainer [2025-02-06 17:21:36,397 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 17:21:36,399 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 17:21:36,399 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 17:21:36,402 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 17:21:36,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:21:35" (1/3) ... [2025-02-06 17:21:36,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336ba2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:21:36, skipping insertion in model container [2025-02-06 17:21:36,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:21:35" (2/3) ... [2025-02-06 17:21:36,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@336ba2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:21:36, skipping insertion in model container [2025-02-06 17:21:36,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:21:36" (3/3) ... [2025-02-06 17:21:36,403 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_06_bad.i [2025-02-06 17:21:36,413 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 17:21:36,414 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_06_bad.i that has 2 procedures, 25 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 17:21:36,468 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 17:21:36,486 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;@4b1a74d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 17:21:36,487 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 17:21:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 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) [2025-02-06 17:21:36,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 17:21:36,493 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:21:36,494 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:21:36,494 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 17:21:36,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:21:36,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1569615730, now seen corresponding path program 1 times [2025-02-06 17:21:36,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 17:21:36,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [895708687] [2025-02-06 17:21:36,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:21:36,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:21:36,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:21:36,512 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:21:36,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 17:21:36,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 17:21:36,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 17:21:36,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:21:36,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:21:36,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 17:21:36,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:21:36,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:21:36,643 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 17:21:36,643 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 17:21:36,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895708687] [2025-02-06 17:21:36,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895708687] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:21:36,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:21:36,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:21:36,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373590701] [2025-02-06 17:21:36,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:21:36,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:21:36,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 17:21:36,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:21:36,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:21:36,662 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 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) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:21:36,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:21:36,682 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2025-02-06 17:21:36,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:21:36,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-02-06 17:21:36,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:21:36,687 INFO L225 Difference]: With dead ends: 42 [2025-02-06 17:21:36,688 INFO L226 Difference]: Without dead ends: 18 [2025-02-06 17:21:36,690 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:21:36,693 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 17:21:36,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 17:21:36,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-02-06 17:21:36,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-02-06 17:21:36,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 17:21:36,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2025-02-06 17:21:36,719 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2025-02-06 17:21:36,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:21:36,721 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2025-02-06 17:21:36,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 17:21:36,721 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2025-02-06 17:21:36,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-06 17:21:36,722 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:21:36,723 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:21:36,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 17:21:36,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:21:36,927 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 17:21:36,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:21:36,928 INFO L85 PathProgramCache]: Analyzing trace with hash 841459540, now seen corresponding path program 1 times [2025-02-06 17:21:36,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 17:21:36,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1837013021] [2025-02-06 17:21:36,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:21:36,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:21:36,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:21:36,934 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 17:21:36,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 17:21:36,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 17:21:37,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 17:21:37,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:21:37,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 17:21:37,005 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 17:21:37,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 17:21:37,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 17:21:37,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:21:37,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 17:21:37,042 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-06 17:21:37,042 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 17:21:37,045 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-06 17:21:37,046 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-06 17:21:37,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 17:21:37,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:21:37,251 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 17:21:37,272 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 17:21:37,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 05:21:37 BoogieIcfgContainer [2025-02-06 17:21:37,274 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 17:21:37,274 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 17:21:37,275 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 17:21:37,275 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 17:21:37,278 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:21:36" (3/4) ... [2025-02-06 17:21:37,280 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 17:21:37,281 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 17:21:37,281 INFO L158 Benchmark]: Toolchain (without parser) took 2061.04ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 70.7MB in the end (delta: 41.8MB). Peak memory consumption was 47.3MB. Max. memory is 16.1GB. [2025-02-06 17:21:37,281 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:21:37,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 747.40ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 50.1MB in the end (delta: 62.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-02-06 17:21:37,282 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.98ms. Allocated memory is still 142.6MB. Free memory was 50.1MB in the beginning and 47.5MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:21:37,282 INFO L158 Benchmark]: Boogie Preprocessor took 51.03ms. Allocated memory is still 142.6MB. Free memory was 47.5MB in the beginning and 45.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:21:37,282 INFO L158 Benchmark]: IcfgBuilder took 327.35ms. Allocated memory is still 142.6MB. Free memory was 45.4MB in the beginning and 100.5MB in the end (delta: -55.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2025-02-06 17:21:37,282 INFO L158 Benchmark]: TraceAbstraction took 875.44ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 70.7MB in the end (delta: 29.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-06 17:21:37,286 INFO L158 Benchmark]: Witness Printer took 6.24ms. Allocated memory is still 142.6MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 17:21:37,287 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 117.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 747.40ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 50.1MB in the end (delta: 62.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.98ms. Allocated memory is still 142.6MB. Free memory was 50.1MB in the beginning and 47.5MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.03ms. Allocated memory is still 142.6MB. Free memory was 47.5MB in the beginning and 45.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 327.35ms. Allocated memory is still 142.6MB. Free memory was 45.4MB in the beginning and 100.5MB in the end (delta: -55.1MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * TraceAbstraction took 875.44ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 70.7MB in the end (delta: 29.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 6.24ms. Allocated memory is still 142.6MB. Free memory is still 70.7MB. 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: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of fgets at line 1557. 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 const int STATIC_CONST_FIVE = 5; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1579] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL CWE191_Integer_Underflow__int_fgets_multiply_06_bad() [L1551] int data; [L1552] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] COND TRUE STATIC_CONST_FIVE==5 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1567] COND TRUE STATIC_CONST_FIVE==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1571]: 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 27 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2025-02-06 17:21:37,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample