./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_04_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/CWE190_Integer_Overflow__int_fgets_preinc_04_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 e62c5e7eb5d493a1c3ac9115513423e1d03eaa034e2953130d1baa63fef12fbf --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 15:45:18,176 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 15:45:18,213 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-06 15:45:18,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 15:45:18,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 15:45:18,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 15:45:18,230 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 15:45:18,230 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 15:45:18,231 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 15:45:18,231 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 15:45:18,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 15:45:18,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 15:45:18,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 15:45:18,231 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 15:45:18,231 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 15:45:18,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 15:45:18,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 15:45:18,232 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 15:45:18,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 15:45:18,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 15:45:18,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 15:45:18,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 15:45:18,232 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 15:45:18,232 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 15:45:18,232 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 15:45:18,232 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 15:45:18,232 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 15:45:18,232 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 15:45:18,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 15:45:18,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 15:45:18,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 15:45:18,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 15:45:18,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 15:45:18,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 15:45:18,233 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 15:45:18,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 15:45:18,233 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 15:45:18,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 15:45:18,233 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 15:45:18,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 15:45:18,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 15:45:18,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 15:45:18,234 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 -> e62c5e7eb5d493a1c3ac9115513423e1d03eaa034e2953130d1baa63fef12fbf [2025-02-06 15:45:18,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 15:45:18,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 15:45:18,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 15:45:18,433 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 15:45:18,433 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 15:45:18,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_04_bad.i [2025-02-06 15:45:19,626 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/348d7bfbd/0a561085835d447bb606a9b5195c2264/FLAG957649583 [2025-02-06 15:45:19,980 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 15:45:19,981 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_04_bad.i [2025-02-06 15:45:20,004 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/348d7bfbd/0a561085835d447bb606a9b5195c2264/FLAG957649583 [2025-02-06 15:45:20,190 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/348d7bfbd/0a561085835d447bb606a9b5195c2264 [2025-02-06 15:45:20,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 15:45:20,196 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 15:45:20,197 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 15:45:20,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 15:45:20,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 15:45:20,204 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:20,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37000ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20, skipping insertion in model container [2025-02-06 15:45:20,205 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:20,250 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 15:45:20,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 15:45:20,817 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 15:45:20,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 15:45:20,985 INFO L204 MainTranslator]: Completed translation [2025-02-06 15:45:20,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20 WrapperNode [2025-02-06 15:45:20,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 15:45:20,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 15:45:20,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 15:45:20,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 15:45:20,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:21,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:21,032 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2025-02-06 15:45:21,033 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 15:45:21,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 15:45:21,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 15:45:21,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 15:45:21,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:21,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:21,042 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:21,056 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 15:45:21,060 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:21,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:21,063 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:21,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:21,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:21,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:21,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 15:45:21,074 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 15:45:21,074 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 15:45:21,074 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 15:45:21,075 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (1/1) ... [2025-02-06 15:45:21,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 15:45:21,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:45:21,106 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 15:45:21,108 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 15:45:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-06 15:45:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-06 15:45:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 15:45:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 15:45:21,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 15:45:21,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 15:45:21,234 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 15:45:21,235 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 15:45:21,301 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-02-06 15:45:21,301 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 15:45:21,307 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 15:45:21,307 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 15:45:21,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:45:21 BoogieIcfgContainer [2025-02-06 15:45:21,308 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 15:45:21,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 15:45:21,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 15:45:21,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 15:45:21,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 03:45:20" (1/3) ... [2025-02-06 15:45:21,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635c8443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:45:21, skipping insertion in model container [2025-02-06 15:45:21,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:20" (2/3) ... [2025-02-06 15:45:21,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@635c8443 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:45:21, skipping insertion in model container [2025-02-06 15:45:21,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:45:21" (3/3) ... [2025-02-06 15:45:21,313 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_04_bad.i [2025-02-06 15:45:21,323 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 15:45:21,324 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_04_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 15:45:21,355 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 15:45:21,362 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;@50a8d236, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 15:45:21,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 15:45:21,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 15:45:21,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-06 15:45:21,368 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:45:21,369 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:45:21,369 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:45:21,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:45:21,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1138838200, now seen corresponding path program 1 times [2025-02-06 15:45:21,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 15:45:21,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100116622] [2025-02-06 15:45:21,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:45:21,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 15:45:21,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 15:45:21,461 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 15:45:21,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:45:21,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 15:45:21,541 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 15:45:21,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 15:45:21,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100116622] [2025-02-06 15:45:21,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100116622] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 15:45:21,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 15:45:21,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 15:45:21,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335860159] [2025-02-06 15:45:21,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 15:45:21,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 15:45:21,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 15:45:21,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 15:45:21,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 15:45:21,559 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 15:45:21,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 15:45:21,586 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2025-02-06 15:45:21,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 15:45:21,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 11 [2025-02-06 15:45:21,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 15:45:21,593 INFO L225 Difference]: With dead ends: 40 [2025-02-06 15:45:21,594 INFO L226 Difference]: Without dead ends: 17 [2025-02-06 15:45:21,596 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 15:45:21,599 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 25 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 15:45:21,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 25 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 15:45:21,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2025-02-06 15:45:21,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2025-02-06 15:45:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 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 15:45:21,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2025-02-06 15:45:21,641 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2025-02-06 15:45:21,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 15:45:21,641 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2025-02-06 15:45:21,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 15:45:21,642 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2025-02-06 15:45:21,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-06 15:45:21,643 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:45:21,643 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:45:21,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 15:45:21,644 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:45:21,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:45:21,645 INFO L85 PathProgramCache]: Analyzing trace with hash -793981098, now seen corresponding path program 1 times [2025-02-06 15:45:21,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 15:45:21,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853329236] [2025-02-06 15:45:21,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:45:21,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 15:45:21,681 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 15:45:21,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 15:45:21,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:45:21,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 15:45:21,780 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 15:45:21,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 15:45:21,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853329236] [2025-02-06 15:45:21,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853329236] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 15:45:21,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 15:45:21,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 15:45:21,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674078471] [2025-02-06 15:45:21,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 15:45:21,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 15:45:21,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 15:45:21,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 15:45:21,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 15:45:21,783 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 15:45:21,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 15:45:21,792 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2025-02-06 15:45:21,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 15:45:21,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 13 [2025-02-06 15:45:21,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 15:45:21,793 INFO L225 Difference]: With dead ends: 17 [2025-02-06 15:45:21,794 INFO L226 Difference]: Without dead ends: 16 [2025-02-06 15:45:21,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:45:21,794 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 3 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 15:45:21,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 15:45:21,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-02-06 15:45:21,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-02-06 15:45:21,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 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 15:45:21,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2025-02-06 15:45:21,800 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2025-02-06 15:45:21,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 15:45:21,800 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2025-02-06 15:45:21,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 15:45:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2025-02-06 15:45:21,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-06 15:45:21,800 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:45:21,801 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:45:21,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 15:45:21,801 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:45:21,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:45:21,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1156389718, now seen corresponding path program 1 times [2025-02-06 15:45:21,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 15:45:21,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593143258] [2025-02-06 15:45:21,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:45:21,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 15:45:21,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 15:45:21,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 15:45:21,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:45:21,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 15:45:21,821 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 15:45:21,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 15:45:21,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 15:45:21,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:45:21,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 15:45:21,845 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 15:45:21,848 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 15:45:21,849 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-06 15:45:21,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-06 15:45:21,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 15:45:21,852 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-06 15:45:21,868 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 15:45:21,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 03:45:21 BoogieIcfgContainer [2025-02-06 15:45:21,872 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 15:45:21,872 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 15:45:21,873 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 15:45:21,873 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 15:45:21,874 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:45:21" (3/4) ... [2025-02-06 15:45:21,876 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 15:45:21,877 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 15:45:21,878 INFO L158 Benchmark]: Toolchain (without parser) took 1681.50ms. Allocated memory is still 167.8MB. Free memory was 129.7MB in the beginning and 96.5MB in the end (delta: 33.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2025-02-06 15:45:21,878 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:45:21,878 INFO L158 Benchmark]: CACSL2BoogieTranslator took 789.36ms. Allocated memory is still 167.8MB. Free memory was 129.4MB in the beginning and 68.9MB in the end (delta: 60.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-06 15:45:21,878 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.32ms. Allocated memory is still 167.8MB. Free memory was 68.9MB in the beginning and 66.2MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 15:45:21,878 INFO L158 Benchmark]: Boogie Preprocessor took 39.78ms. Allocated memory is still 167.8MB. Free memory was 66.2MB in the beginning and 64.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:45:21,879 INFO L158 Benchmark]: IcfgBuilder took 233.71ms. Allocated memory is still 167.8MB. Free memory was 64.7MB in the beginning and 52.0MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 15:45:21,879 INFO L158 Benchmark]: TraceAbstraction took 562.79ms. Allocated memory is still 167.8MB. Free memory was 51.4MB in the beginning and 96.5MB in the end (delta: -45.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:45:21,879 INFO L158 Benchmark]: Witness Printer took 5.09ms. Allocated memory is still 167.8MB. Free memory was 96.5MB in the beginning and 96.5MB in the end (delta: 33.1kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:45:21,880 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 201.3MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 789.36ms. Allocated memory is still 167.8MB. Free memory was 129.4MB in the beginning and 68.9MB in the end (delta: 60.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.32ms. Allocated memory is still 167.8MB. Free memory was 68.9MB in the beginning and 66.2MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.78ms. Allocated memory is still 167.8MB. Free memory was 66.2MB in the beginning and 64.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 233.71ms. Allocated memory is still 167.8MB. Free memory was 64.7MB in the beginning and 52.0MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 562.79ms. Allocated memory is still 167.8MB. Free memory was 51.4MB in the beginning and 96.5MB in the end (delta: -45.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.09ms. Allocated memory is still 167.8MB. Free memory was 96.5MB in the beginning and 96.5MB in the end (delta: 33.1kB). 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 1560, overapproximation of fgets at line 1558. 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_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 0; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_preinc_04_bad() [L1552] int data; [L1553] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1568] COND TRUE \read(STATIC_CONST_TRUE) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 41 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 15:45:21,895 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 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/CWE190_Integer_Overflow__int_fgets_preinc_04_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 e62c5e7eb5d493a1c3ac9115513423e1d03eaa034e2953130d1baa63fef12fbf --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 15:45:23,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 15:45:23,899 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-02-06 15:45:23,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 15:45:23,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 15:45:23,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-02-06 15:45:23,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 15:45:23,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 15:45:23,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 15:45:23,936 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 15:45:23,937 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 15:45:23,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 15:45:23,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 15:45:23,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 15:45:23,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 15:45:23,938 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 15:45:23,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 15:45:23,939 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 15:45:23,939 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 15:45:23,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 15:45:23,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 15:45:23,940 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 15:45:23,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 15:45:23,940 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 15:45:23,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 15:45:23,940 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-06 15:45:23,940 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-06 15:45:23,940 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 15:45:23,940 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 15:45:23,940 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 15:45:23,940 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 15:45:23,940 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 -> e62c5e7eb5d493a1c3ac9115513423e1d03eaa034e2953130d1baa63fef12fbf [2025-02-06 15:45:24,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 15:45:24,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 15:45:24,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 15:45:24,231 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 15:45:24,231 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 15:45:24,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_04_bad.i [2025-02-06 15:45:25,593 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2fcec315c/e319d69e063640d2bea1adbe3ccdf3f1/FLAG9e95bf246 [2025-02-06 15:45:25,872 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 15:45:25,873 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_04_bad.i [2025-02-06 15:45:25,893 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2fcec315c/e319d69e063640d2bea1adbe3ccdf3f1/FLAG9e95bf246 [2025-02-06 15:45:25,908 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2fcec315c/e319d69e063640d2bea1adbe3ccdf3f1 [2025-02-06 15:45:25,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 15:45:25,911 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 15:45:25,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 15:45:25,913 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 15:45:25,916 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 15:45:25,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:45:25" (1/1) ... [2025-02-06 15:45:25,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae1710c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:25, skipping insertion in model container [2025-02-06 15:45:25,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 03:45:25" (1/1) ... [2025-02-06 15:45:25,953 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 15:45:26,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 15:45:26,504 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 15:45:26,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 15:45:26,690 INFO L204 MainTranslator]: Completed translation [2025-02-06 15:45:26,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26 WrapperNode [2025-02-06 15:45:26,691 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 15:45:26,692 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 15:45:26,692 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 15:45:26,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 15:45:26,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (1/1) ... [2025-02-06 15:45:26,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (1/1) ... [2025-02-06 15:45:26,739 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2025-02-06 15:45:26,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 15:45:26,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 15:45:26,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 15:45:26,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 15:45:26,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (1/1) ... [2025-02-06 15:45:26,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (1/1) ... [2025-02-06 15:45:26,752 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (1/1) ... [2025-02-06 15:45:26,759 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 15:45:26,760 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (1/1) ... [2025-02-06 15:45:26,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (1/1) ... [2025-02-06 15:45:26,765 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (1/1) ... [2025-02-06 15:45:26,765 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (1/1) ... [2025-02-06 15:45:26,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (1/1) ... [2025-02-06 15:45:26,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (1/1) ... [2025-02-06 15:45:26,769 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 15:45:26,769 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 15:45:26,769 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 15:45:26,769 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 15:45:26,770 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (1/1) ... [2025-02-06 15:45:26,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 15:45:26,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:45:26,791 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 15:45:26,794 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 15:45:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-02-06 15:45:26,816 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-02-06 15:45:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-06 15:45:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 15:45:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 15:45:26,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 15:45:26,909 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 15:45:26,911 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 15:45:27,028 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2025-02-06 15:45:27,029 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 15:45:27,037 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 15:45:27,038 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 15:45:27,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:45:27 BoogieIcfgContainer [2025-02-06 15:45:27,038 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 15:45:27,040 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 15:45:27,040 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 15:45:27,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 15:45:27,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 03:45:25" (1/3) ... [2025-02-06 15:45:27,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d85f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:45:27, skipping insertion in model container [2025-02-06 15:45:27,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 03:45:26" (2/3) ... [2025-02-06 15:45:27,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d85f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 03:45:27, skipping insertion in model container [2025-02-06 15:45:27,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:45:27" (3/3) ... [2025-02-06 15:45:27,047 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_04_bad.i [2025-02-06 15:45:27,056 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 15:45:27,057 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_04_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 15:45:27,098 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 15:45:27,109 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;@75ccc6dd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 15:45:27,110 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-06 15:45:27,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 15:45:27,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-02-06 15:45:27,117 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:45:27,118 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:45:27,118 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:45:27,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:45:27,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1138838200, now seen corresponding path program 1 times [2025-02-06 15:45:27,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 15:45:27,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [831028154] [2025-02-06 15:45:27,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:45:27,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 15:45:27,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:45:27,136 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 15:45:27,138 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 15:45:27,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 15:45:27,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 15:45:27,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:45:27,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 15:45:27,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 15:45:27,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 15:45:27,276 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 15:45:27,277 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 15:45:27,277 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 15:45:27,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831028154] [2025-02-06 15:45:27,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831028154] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 15:45:27,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 15:45:27,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 15:45:27,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578857455] [2025-02-06 15:45:27,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 15:45:27,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 15:45:27,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 15:45:27,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 15:45:27,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 15:45:27,299 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 15:45:27,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 15:45:27,309 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2025-02-06 15:45:27,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 15:45:27,310 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 11 [2025-02-06 15:45:27,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 15:45:27,315 INFO L225 Difference]: With dead ends: 24 [2025-02-06 15:45:27,315 INFO L226 Difference]: Without dead ends: 16 [2025-02-06 15:45:27,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 15:45:27,320 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 15:45:27,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 15:45:27,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-02-06 15:45:27,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-02-06 15:45:27,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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 15:45:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2025-02-06 15:45:27,361 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2025-02-06 15:45:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 15:45:27,361 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2025-02-06 15:45:27,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 15:45:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2025-02-06 15:45:27,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 15:45:27,362 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:45:27,362 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:45:27,369 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 15:45:27,563 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 15:45:27,563 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:45:27,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:45:27,564 INFO L85 PathProgramCache]: Analyzing trace with hash 944245812, now seen corresponding path program 1 times [2025-02-06 15:45:27,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 15:45:27,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1551113220] [2025-02-06 15:45:27,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:45:27,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 15:45:27,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:45:27,566 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 15:45:27,567 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 15:45:27,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 15:45:27,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 15:45:27,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:45:27,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 15:45:27,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 15:45:27,629 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 15:45:27,641 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 15:45:27,642 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 15:45:27,642 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-06 15:45:27,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551113220] [2025-02-06 15:45:27,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551113220] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 15:45:27,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 15:45:27,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 15:45:27,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855978011] [2025-02-06 15:45:27,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 15:45:27,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 15:45:27,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-06 15:45:27,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 15:45:27,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 15:45:27,644 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. 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 15:45:27,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 15:45:27,652 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2025-02-06 15:45:27,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 15:45:27,652 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 15:45:27,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 15:45:27,652 INFO L225 Difference]: With dead ends: 20 [2025-02-06 15:45:27,652 INFO L226 Difference]: Without dead ends: 16 [2025-02-06 15:45:27,653 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 15:45:27,653 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 15:45:27,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 15:45:27,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-02-06 15:45:27,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-02-06 15:45:27,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 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 15:45:27,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2025-02-06 15:45:27,656 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2025-02-06 15:45:27,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 15:45:27,656 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2025-02-06 15:45:27,656 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 15:45:27,656 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2025-02-06 15:45:27,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-06 15:45:27,656 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 15:45:27,657 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 15:45:27,666 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 15:45:27,857 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 15:45:27,857 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-02-06 15:45:27,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 15:45:27,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1156389718, now seen corresponding path program 1 times [2025-02-06 15:45:27,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-06 15:45:27,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [370716228] [2025-02-06 15:45:27,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 15:45:27,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 15:45:27,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 15:45:27,861 INFO L229 MonitoredProcess]: Starting monitored process 4 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 15:45:27,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 15:45:27,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 15:45:27,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 15:45:27,932 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:45:27,932 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 15:45:27,932 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 15:45:27,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 15:45:27,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 15:45:27,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 15:45:27,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 15:45:27,961 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-02-06 15:45:27,961 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 15:45:27,962 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-02-06 15:45:27,963 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-02-06 15:45:27,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 15:45:28,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 15:45:28,167 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-02-06 15:45:28,186 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 15:45:28,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 03:45:28 BoogieIcfgContainer [2025-02-06 15:45:28,188 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 15:45:28,189 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 15:45:28,189 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 15:45:28,189 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 15:45:28,189 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 03:45:27" (3/4) ... [2025-02-06 15:45:28,191 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-06 15:45:28,192 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 15:45:28,192 INFO L158 Benchmark]: Toolchain (without parser) took 2281.00ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 63.1MB in the end (delta: 26.0MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2025-02-06 15:45:28,192 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 63.3MB in the beginning and 63.3MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:45:28,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 778.32ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 75.2MB in the end (delta: 13.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2025-02-06 15:45:28,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.84ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 72.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:45:28,193 INFO L158 Benchmark]: Boogie Preprocessor took 27.91ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 70.6MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 15:45:28,193 INFO L158 Benchmark]: IcfgBuilder took 268.79ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 57.6MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 15:45:28,193 INFO L158 Benchmark]: TraceAbstraction took 1148.54ms. Allocated memory is still 117.4MB. Free memory was 56.9MB in the beginning and 63.1MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:45:28,194 INFO L158 Benchmark]: Witness Printer took 2.93ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 63.1MB in the end (delta: 7.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 15:45:28,195 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory was 63.3MB in the beginning and 63.3MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 778.32ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 75.2MB in the end (delta: 13.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.84ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 72.9MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.91ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 70.6MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 268.79ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 57.6MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1148.54ms. Allocated memory is still 117.4MB. Free memory was 56.9MB in the beginning and 63.1MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.93ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 63.1MB in the end (delta: 7.0kB). 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 1560, overapproximation of fgets at line 1558. 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_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 0; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_preinc_04_bad() [L1552] int data; [L1553] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1568] COND TRUE \read(STATIC_CONST_TRUE) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 47 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 23 SizeOfPredicates, 0 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 15:45:28,207 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