./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_68_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 94f14f438bebb44e047f740b8b2df0e047ef25e117e8b91642619eff993c71ac --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 05:23:47,913 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 05:23:47,972 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-09 05:23:47,977 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 05:23:47,977 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 05:23:48,000 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 05:23:48,001 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 05:23:48,001 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 05:23:48,002 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 05:23:48,002 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 05:23:48,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 05:23:48,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 05:23:48,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 05:23:48,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 05:23:48,003 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 05:23:48,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 05:23:48,004 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 05:23:48,004 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 05:23:48,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 05:23:48,004 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 05:23:48,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 05:23:48,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 05:23:48,004 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 05:23:48,004 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 05:23:48,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 05:23:48,004 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 05:23:48,005 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 05:23:48,005 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 05:23:48,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 05:23:48,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 05:23:48,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 05:23:48,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:23:48,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 05:23:48,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 05:23:48,006 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 05:23:48,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 05:23:48,006 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 05:23:48,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 05:23:48,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 05:23:48,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 05:23:48,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 05:23:48,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 05:23:48,006 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94f14f438bebb44e047f740b8b2df0e047ef25e117e8b91642619eff993c71ac [2025-03-09 05:23:48,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 05:23:48,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 05:23:48,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 05:23:48,256 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 05:23:48,256 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 05:23:48,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_68_bad.i [2025-03-09 05:23:49,455 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6b9003a7/75dffdf4fe244cf1a6444b208a786096/FLAG426c05c81 [2025-03-09 05:23:49,880 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 05:23:49,882 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_68_bad.i [2025-03-09 05:23:49,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6b9003a7/75dffdf4fe244cf1a6444b208a786096/FLAG426c05c81 [2025-03-09 05:23:50,028 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6b9003a7/75dffdf4fe244cf1a6444b208a786096 [2025-03-09 05:23:50,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 05:23:50,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 05:23:50,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 05:23:50,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 05:23:50,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 05:23:50,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a3c617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50, skipping insertion in model container [2025-03-09 05:23:50,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,081 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 05:23:50,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:23:50,607 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 05:23:50,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:23:50,763 INFO L204 MainTranslator]: Completed translation [2025-03-09 05:23:50,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50 WrapperNode [2025-03-09 05:23:50,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 05:23:50,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 05:23:50,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 05:23:50,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 05:23:50,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,789 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,806 INFO L138 Inliner]: procedures = 498, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 45 [2025-03-09 05:23:50,807 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 05:23:50,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 05:23:50,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 05:23:50,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 05:23:50,816 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,819 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,827 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-09 05:23:50,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,834 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,835 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,836 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 05:23:50,842 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 05:23:50,842 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 05:23:50,842 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 05:23:50,843 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (1/1) ... [2025-03-09 05:23:50,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:23:50,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:23:50,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 05:23:50,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 05:23:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-09 05:23:50,905 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-09 05:23:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 05:23:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 05:23:50,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 05:23:51,049 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 05:23:51,050 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 05:23:51,146 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-03-09 05:23:51,146 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 05:23:51,155 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 05:23:51,155 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 05:23:51,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:23:51 BoogieIcfgContainer [2025-03-09 05:23:51,155 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 05:23:51,157 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 05:23:51,157 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 05:23:51,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 05:23:51,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 05:23:50" (1/3) ... [2025-03-09 05:23:51,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79547631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:23:51, skipping insertion in model container [2025-03-09 05:23:51,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:23:50" (2/3) ... [2025-03-09 05:23:51,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79547631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:23:51, skipping insertion in model container [2025-03-09 05:23:51,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:23:51" (3/3) ... [2025-03-09 05:23:51,164 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_68_bad.i [2025-03-09 05:23:51,176 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 05:23:51,178 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fscanf_predec_68_bad.i that has 2 procedures, 20 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-09 05:23:51,219 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 05:23:51,229 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;@7c5d155b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 05:23:51,230 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-09 05:23:51,233 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 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) [2025-03-09 05:23:51,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-09 05:23:51,238 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:23:51,239 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:23:51,239 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-09 05:23:51,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:23:51,244 INFO L85 PathProgramCache]: Analyzing trace with hash -700336089, now seen corresponding path program 1 times [2025-03-09 05:23:51,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:23:51,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851454631] [2025-03-09 05:23:51,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:23:51,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:23:51,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 05:23:51,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 05:23:51,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:23:51,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 05:23:51,353 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 05:23:51,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 05:23:51,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 05:23:51,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:23:51,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 05:23:51,386 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 05:23:51,387 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 05:23:51,388 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-09 05:23:51,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-09 05:23:51,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 05:23:51,393 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-09 05:23:51,412 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 05:23:51,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 05:23:51 BoogieIcfgContainer [2025-03-09 05:23:51,419 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 05:23:51,420 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 05:23:51,420 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 05:23:51,420 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 05:23:51,420 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:23:51" (3/4) ... [2025-03-09 05:23:51,421 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-09 05:23:51,450 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 6. [2025-03-09 05:23:51,483 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 05:23:51,483 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 05:23:51,484 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 05:23:51,485 INFO L158 Benchmark]: Toolchain (without parser) took 1451.35ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 83.1MB in the end (delta: 25.9MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2025-03-09 05:23:51,485 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:23:51,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 729.31ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 50.8MB in the end (delta: 58.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-09 05:23:51,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.17ms. Allocated memory is still 142.6MB. Free memory was 50.8MB in the beginning and 48.4MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 05:23:51,486 INFO L158 Benchmark]: Boogie Preprocessor took 29.85ms. Allocated memory is still 142.6MB. Free memory was 48.4MB in the beginning and 46.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 05:23:51,487 INFO L158 Benchmark]: IcfgBuilder took 313.47ms. Allocated memory is still 142.6MB. Free memory was 46.9MB in the beginning and 103.5MB in the end (delta: -56.7MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2025-03-09 05:23:51,489 INFO L158 Benchmark]: TraceAbstraction took 262.57ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 89.2MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 05:23:51,489 INFO L158 Benchmark]: Witness Printer took 64.07ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 83.1MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 05:23:51,490 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 123.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 729.31ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 50.8MB in the end (delta: 58.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.17ms. Allocated memory is still 142.6MB. Free memory was 50.8MB in the beginning and 48.4MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.85ms. Allocated memory is still 142.6MB. Free memory was 48.4MB in the beginning and 46.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 313.47ms. Allocated memory is still 142.6MB. Free memory was 46.9MB in the beginning and 103.5MB in the end (delta: -56.7MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * TraceAbstraction took 262.57ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 89.2MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 64.07ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 83.1MB in the end (delta: 6.1MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: 1575]: integer overflow possible integer overflow possible We found a 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); [L1550] int CWE191_Integer_Underflow__int_fscanf_predec_68_goodB2GData; VAL [CWE191_Integer_Underflow__int_fscanf_predec_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_predec_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fscanf_predec_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_fscanf_predec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] CWE191_Integer_Underflow__int_fscanf_predec_68_badData = data [L1558] CALL CWE191_Integer_Underflow__int_fscanf_predec_68b_badSink() [L1573] int data = CWE191_Integer_Underflow__int_fscanf_predec_68_badData; VAL [CWE191_Integer_Underflow__int_fscanf_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fscanf_predec_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] --data VAL [CWE191_Integer_Underflow__int_fscanf_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fscanf_predec_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1575]: 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, 20 locations, 23 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-09 05:23:51,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)