./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_17_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 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/CWE190_Integer_Overflow__int_fgets_preinc_17_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 9273d609dec5d79d143f17efc5d0dc149e682003f6d792ebfd2d77decf068395 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 16:52:50,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 16:52:50,334 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 16:52:50,337 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 16:52:50,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 16:52:50,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 16:52:50,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 16:52:50,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 16:52:50,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 16:52:50,359 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 16:52:50,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 16:52:50,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 16:52:50,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 16:52:50,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 16:52:50,359 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 16:52:50,359 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 16:52:50,359 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 16:52:50,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 16:52:50,359 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 16:52:50,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 16:52:50,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 16:52:50,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 16:52:50,359 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 16:52:50,359 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 16:52:50,360 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:52:50,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 16:52:50,360 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 16:52:50,360 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 -> 9273d609dec5d79d143f17efc5d0dc149e682003f6d792ebfd2d77decf068395 [2025-03-17 16:52:50,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 16:52:50,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 16:52:50,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 16:52:50,567 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 16:52:50,567 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 16:52:50,568 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_17_bad.i [2025-03-17 16:52:51,709 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a382cd17f/35239f9183494310b14794afa411b763/FLAGf2d8a9157 [2025-03-17 16:52:52,082 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 16:52:52,083 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_17_bad.i [2025-03-17 16:52:52,105 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a382cd17f/35239f9183494310b14794afa411b763/FLAGf2d8a9157 [2025-03-17 16:52:52,289 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a382cd17f/35239f9183494310b14794afa411b763 [2025-03-17 16:52:52,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 16:52:52,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 16:52:52,293 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 16:52:52,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 16:52:52,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 16:52:52,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:52:52" (1/1) ... [2025-03-17 16:52:52,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a2629a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:52, skipping insertion in model container [2025-03-17 16:52:52,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:52:52" (1/1) ... [2025-03-17 16:52:52,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 16:52:52,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:52:52,902 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 16:52:52,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:52:53,039 INFO L204 MainTranslator]: Completed translation [2025-03-17 16:52:53,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53 WrapperNode [2025-03-17 16:52:53,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 16:52:53,042 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 16:52:53,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 16:52:53,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 16:52:53,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (1/1) ... [2025-03-17 16:52:53,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (1/1) ... [2025-03-17 16:52:53,082 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2025-03-17 16:52:53,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 16:52:53,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 16:52:53,083 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 16:52:53,083 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 16:52:53,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (1/1) ... [2025-03-17 16:52:53,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (1/1) ... [2025-03-17 16:52:53,094 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (1/1) ... [2025-03-17 16:52:53,110 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2025-03-17 16:52:53,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (1/1) ... [2025-03-17 16:52:53,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (1/1) ... [2025-03-17 16:52:53,113 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (1/1) ... [2025-03-17 16:52:53,113 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (1/1) ... [2025-03-17 16:52:53,114 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (1/1) ... [2025-03-17 16:52:53,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (1/1) ... [2025-03-17 16:52:53,116 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 16:52:53,117 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 16:52:53,117 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 16:52:53,117 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 16:52:53,117 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (1/1) ... [2025-03-17 16:52:53,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:52:53,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:52:53,142 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) [2025-03-17 16:52:53,145 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 [2025-03-17 16:52:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-17 16:52:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-17 16:52:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 16:52:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 16:52:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 16:52:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 16:52:53,280 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 16:52:53,282 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 16:52:53,400 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2025-03-17 16:52:53,400 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 16:52:53,410 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 16:52:53,411 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 16:52:53,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:52:53 BoogieIcfgContainer [2025-03-17 16:52:53,411 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 16:52:53,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 16:52:53,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 16:52:53,417 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 16:52:53,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 04:52:52" (1/3) ... [2025-03-17 16:52:53,418 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b08f20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:52:53, skipping insertion in model container [2025-03-17 16:52:53,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:53" (2/3) ... [2025-03-17 16:52:53,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b08f20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:52:53, skipping insertion in model container [2025-03-17 16:52:53,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:52:53" (3/3) ... [2025-03-17 16:52:53,420 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_17_bad.i [2025-03-17 16:52:53,434 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 16:52:53,436 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_17_bad.i that has 2 procedures, 28 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2025-03-17 16:52:53,479 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 16:52:53,489 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;@5a778d7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 16:52:53,489 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-03-17 16:52:53,493 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 17 states have (on average 1.588235294117647) internal successors, (27), 24 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 16:52:53,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-17 16:52:53,498 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:52:53,498 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:52:53,499 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 16:52:53,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:52:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash -723650022, now seen corresponding path program 1 times [2025-03-17 16:52:53,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 16:52:53,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101805830] [2025-03-17 16:52:53,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:52:53,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 16:52:53,576 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 16:52:53,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 16:52:53,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:52:53,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:52:53,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 16:52:53,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 16:52:53,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101805830] [2025-03-17 16:52:53,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101805830] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:52:53,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:52:53,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 16:52:53,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411834995] [2025-03-17 16:52:53,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:52:53,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 16:52:53,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 16:52:53,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 16:52:53,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 16:52:53,691 INFO L87 Difference]: Start difference. First operand has 28 states, 17 states have (on average 1.588235294117647) internal successors, (27), 24 states have internal predecessors, (27), 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 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-17 16:52:53,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:52:53,725 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2025-03-17 16:52:53,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 16:52:53,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 10 [2025-03-17 16:52:53,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:52:53,730 INFO L225 Difference]: With dead ends: 49 [2025-03-17 16:52:53,731 INFO L226 Difference]: Without dead ends: 28 [2025-03-17 16:52:53,733 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 [2025-03-17 16:52:53,737 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 16:52:53,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 59 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:52:53,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2025-03-17 16:52:53,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2025-03-17 16:52:53,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 16 states have (on average 1.5625) internal successors, (25), 22 states have internal predecessors, (25), 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) [2025-03-17 16:52:53,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2025-03-17 16:52:53,767 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 10 [2025-03-17 16:52:53,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:52:53,768 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2025-03-17 16:52:53,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2025-03-17 16:52:53,769 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2025-03-17 16:52:53,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 16:52:53,770 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:52:53,770 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:52:53,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 16:52:53,770 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 16:52:53,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:52:53,771 INFO L85 PathProgramCache]: Analyzing trace with hash -958039119, now seen corresponding path program 1 times [2025-03-17 16:52:53,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 16:52:53,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211978940] [2025-03-17 16:52:53,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:52:53,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 16:52:53,799 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 16:52:53,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 16:52:53,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:52:53,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:52:53,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 16:52:53,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 16:52:53,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211978940] [2025-03-17 16:52:53,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211978940] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:52:53,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:52:53,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 16:52:53,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33779418] [2025-03-17 16:52:53,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:52:53,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 16:52:53,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 16:52:53,943 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 16:52:53,943 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 16:52:53,943 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2025-03-17 16:52:53,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:52:53,974 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2025-03-17 16:52:53,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 16:52:53,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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 [2025-03-17 16:52:53,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:52:53,975 INFO L225 Difference]: With dead ends: 32 [2025-03-17 16:52:53,975 INFO L226 Difference]: Without dead ends: 30 [2025-03-17 16:52:53,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 16:52:53,977 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 2 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 16:52:53,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 69 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:52:53,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2025-03-17 16:52:53,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2025-03-17 16:52:53,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.5) internal successors, (30), 27 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 16:52:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2025-03-17 16:52:53,982 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 11 [2025-03-17 16:52:53,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:52:53,982 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2025-03-17 16:52:53,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 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) [2025-03-17 16:52:53,982 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2025-03-17 16:52:53,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-17 16:52:53,982 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:52:53,983 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:52:53,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 16:52:53,983 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 16:52:53,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:52:53,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1687675922, now seen corresponding path program 1 times [2025-03-17 16:52:53,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 16:52:53,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456674161] [2025-03-17 16:52:53,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:52:53,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 16:52:54,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-17 16:52:54,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-17 16:52:54,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:52:54,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:52:54,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 16:52:54,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 16:52:54,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456674161] [2025-03-17 16:52:54,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456674161] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:52:54,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:52:54,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 16:52:54,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009612454] [2025-03-17 16:52:54,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:52:54,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 16:52:54,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 16:52:54,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 16:52:54,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 16:52:54,068 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-03-17 16:52:54,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:52:54,081 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2025-03-17 16:52:54,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 16:52:54,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 15 [2025-03-17 16:52:54,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:52:54,082 INFO L225 Difference]: With dead ends: 30 [2025-03-17 16:52:54,082 INFO L226 Difference]: Without dead ends: 29 [2025-03-17 16:52:54,082 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 [2025-03-17 16:52:54,083 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 16:52:54,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 32 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:52:54,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2025-03-17 16:52:54,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2025-03-17 16:52:54,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.45) internal successors, (29), 26 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 16:52:54,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2025-03-17 16:52:54,089 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 15 [2025-03-17 16:52:54,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:52:54,089 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2025-03-17 16:52:54,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-03-17 16:52:54,089 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2025-03-17 16:52:54,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-17 16:52:54,090 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:52:54,091 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:52:54,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 16:52:54,091 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 16:52:54,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:52:54,093 INFO L85 PathProgramCache]: Analyzing trace with hash -778346049, now seen corresponding path program 1 times [2025-03-17 16:52:54,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 16:52:54,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533729102] [2025-03-17 16:52:54,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:52:54,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 16:52:54,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 16:52:54,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 16:52:54,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:52:54,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 16:52:54,115 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 16:52:54,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 16:52:54,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 16:52:54,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:52:54,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 16:52:54,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 16:52:54,143 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 16:52:54,144 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2025-03-17 16:52:54,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2025-03-17 16:52:54,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2025-03-17 16:52:54,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2025-03-17 16:52:54,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2025-03-17 16:52:54,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2025-03-17 16:52:54,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 16:52:54,148 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-17 16:52:54,168 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 16:52:54,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 04:52:54 BoogieIcfgContainer [2025-03-17 16:52:54,172 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 16:52:54,173 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 16:52:54,173 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 16:52:54,173 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 16:52:54,174 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:52:53" (3/4) ... [2025-03-17 16:52:54,175 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 16:52:54,176 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 16:52:54,176 INFO L158 Benchmark]: Toolchain (without parser) took 1884.31ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 38.8MB in the end (delta: 64.4MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2025-03-17 16:52:54,178 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 201.3MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:52:54,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 747.98ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 43.3MB in the end (delta: 59.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-17 16:52:54,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.68ms. Allocated memory is still 142.6MB. Free memory was 43.3MB in the beginning and 40.8MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 16:52:54,179 INFO L158 Benchmark]: Boogie Preprocessor took 32.83ms. Allocated memory is still 142.6MB. Free memory was 40.8MB in the beginning and 39.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:52:54,180 INFO L158 Benchmark]: IcfgBuilder took 294.43ms. Allocated memory is still 142.6MB. Free memory was 39.3MB in the beginning and 94.7MB in the end (delta: -55.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2025-03-17 16:52:54,180 INFO L158 Benchmark]: TraceAbstraction took 759.01ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 39.5MB in the end (delta: 54.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-17 16:52:54,180 INFO L158 Benchmark]: Witness Printer took 2.87ms. Allocated memory is still 142.6MB. Free memory was 39.5MB in the beginning and 38.8MB in the end (delta: 689.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:52:54,181 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 201.3MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 747.98ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 43.3MB in the end (delta: 59.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.68ms. Allocated memory is still 142.6MB. Free memory was 43.3MB in the beginning and 40.8MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.83ms. Allocated memory is still 142.6MB. Free memory was 40.8MB in the beginning and 39.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 294.43ms. Allocated memory is still 142.6MB. Free memory was 39.3MB in the beginning and 94.7MB in the end (delta: -55.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * TraceAbstraction took 759.01ms. Allocated memory is still 142.6MB. Free memory was 94.0MB in the beginning and 39.5MB in the end (delta: 54.5MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 2.87ms. Allocated memory is still 142.6MB. Free memory was 39.5MB in the beginning and 38.8MB in the end (delta: 689.6kB). 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of fgets at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1579] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1579] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL CWE190_Integer_Overflow__int_fgets_preinc_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1553] COND TRUE i < 1 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1553] i++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1553] COND FALSE !(i < 1) [L1567] j = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1567] COND TRUE j < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1570] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1553]: 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, 28 locations, 36 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 81 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=2, InterpolantAutomatonStates: 10, 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 67 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-17 16:52:54,195 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_17_bad.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9273d609dec5d79d143f17efc5d0dc149e682003f6d792ebfd2d77decf068395 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 16:52:56,121 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 16:52:56,199 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-03-17 16:52:56,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 16:52:56,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 16:52:56,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-03-17 16:52:56,219 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 16:52:56,219 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 16:52:56,219 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 16:52:56,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 16:52:56,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 16:52:56,220 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 16:52:56,220 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 16:52:56,220 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 16:52:56,221 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:52:56,221 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 16:52:56,221 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 16:52:56,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 16:52:56,222 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 -> 9273d609dec5d79d143f17efc5d0dc149e682003f6d792ebfd2d77decf068395 [2025-03-17 16:52:56,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 16:52:56,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 16:52:56,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 16:52:56,528 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 16:52:56,528 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 16:52:56,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_17_bad.i [2025-03-17 16:52:57,727 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d7ecfb0/7823ba001c4042e5855285cda241d9fb/FLAGb90de4d17 [2025-03-17 16:52:58,076 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 16:52:58,076 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_17_bad.i [2025-03-17 16:52:58,099 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d7ecfb0/7823ba001c4042e5855285cda241d9fb/FLAGb90de4d17 [2025-03-17 16:52:58,300 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49d7ecfb0/7823ba001c4042e5855285cda241d9fb [2025-03-17 16:52:58,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 16:52:58,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 16:52:58,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 16:52:58,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 16:52:58,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 16:52:58,309 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:52:58" (1/1) ... [2025-03-17 16:52:58,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64147108 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:58, skipping insertion in model container [2025-03-17 16:52:58,310 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:52:58" (1/1) ... [2025-03-17 16:52:58,340 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 16:52:58,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:52:58,848 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 16:52:58,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:52:59,043 INFO L204 MainTranslator]: Completed translation [2025-03-17 16:52:59,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59 WrapperNode [2025-03-17 16:52:59,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 16:52:59,045 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 16:52:59,045 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 16:52:59,045 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 16:52:59,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (1/1) ... [2025-03-17 16:52:59,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (1/1) ... [2025-03-17 16:52:59,088 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2025-03-17 16:52:59,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 16:52:59,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 16:52:59,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 16:52:59,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 16:52:59,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (1/1) ... [2025-03-17 16:52:59,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (1/1) ... [2025-03-17 16:52:59,099 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (1/1) ... [2025-03-17 16:52:59,111 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2025-03-17 16:52:59,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (1/1) ... [2025-03-17 16:52:59,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (1/1) ... [2025-03-17 16:52:59,118 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (1/1) ... [2025-03-17 16:52:59,120 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (1/1) ... [2025-03-17 16:52:59,122 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (1/1) ... [2025-03-17 16:52:59,122 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (1/1) ... [2025-03-17 16:52:59,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 16:52:59,128 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 16:52:59,128 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 16:52:59,128 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 16:52:59,129 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (1/1) ... [2025-03-17 16:52:59,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:52:59,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:52:59,153 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) [2025-03-17 16:52:59,156 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 [2025-03-17 16:52:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-17 16:52:59,172 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-17 16:52:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 16:52:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 16:52:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 16:52:59,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 16:52:59,276 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 16:52:59,278 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 16:52:59,380 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2025-03-17 16:52:59,380 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 16:52:59,386 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 16:52:59,387 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 16:52:59,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:52:59 BoogieIcfgContainer [2025-03-17 16:52:59,387 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 16:52:59,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 16:52:59,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 16:52:59,392 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 16:52:59,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 04:52:58" (1/3) ... [2025-03-17 16:52:59,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d20036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:52:59, skipping insertion in model container [2025-03-17 16:52:59,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:52:59" (2/3) ... [2025-03-17 16:52:59,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d20036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:52:59, skipping insertion in model container [2025-03-17 16:52:59,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:52:59" (3/3) ... [2025-03-17 16:52:59,395 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_17_bad.i [2025-03-17 16:52:59,424 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 16:52:59,425 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_preinc_17_bad.i that has 2 procedures, 28 locations, 1 initial locations, 2 loop locations, and 6 error locations. [2025-03-17 16:52:59,462 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 16:52:59,470 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;@6fdf1194, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 16:52:59,470 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-03-17 16:52:59,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 17 states have (on average 1.588235294117647) internal successors, (27), 24 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 16:52:59,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-17 16:52:59,478 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:52:59,479 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:52:59,479 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 16:52:59,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:52:59,484 INFO L85 PathProgramCache]: Analyzing trace with hash -723650022, now seen corresponding path program 1 times [2025-03-17 16:52:59,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:52:59,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1278669005] [2025-03-17 16:52:59,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:52:59,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:52:59,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:52:59,496 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 16:52:59,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 16:52:59,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 16:52:59,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 16:52:59,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:52:59,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:52:59,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 16:52:59,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 16:52:59,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 16:52:59,603 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 16:52:59,603 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 16:52:59,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278669005] [2025-03-17 16:52:59,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278669005] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:52:59,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:52:59,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 16:52:59,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678800697] [2025-03-17 16:52:59,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:52:59,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 16:52:59,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 16:52:59,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 16:52:59,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 16:52:59,625 INFO L87 Difference]: Start difference. First operand has 28 states, 17 states have (on average 1.588235294117647) internal successors, (27), 24 states have internal predecessors, (27), 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 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-03-17 16:52:59,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:52:59,634 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2025-03-17 16:52:59,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 16:52:59,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2025-03-17 16:52:59,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:52:59,639 INFO L225 Difference]: With dead ends: 28 [2025-03-17 16:52:59,639 INFO L226 Difference]: Without dead ends: 21 [2025-03-17 16:52:59,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 16:52:59,643 INFO L435 NwaCegarLoop]: 30 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, 30 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 [2025-03-17 16:52:59,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:52:59,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2025-03-17 16:52:59,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2025-03-17 16:52:59,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 18 states have internal predecessors, (21), 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) [2025-03-17 16:52:59,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2025-03-17 16:52:59,676 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 10 [2025-03-17 16:52:59,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:52:59,677 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2025-03-17 16:52:59,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2025-03-17 16:52:59,677 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2025-03-17 16:52:59,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 16:52:59,678 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:52:59,678 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:52:59,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 16:52:59,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:52:59,881 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 16:52:59,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:52:59,882 INFO L85 PathProgramCache]: Analyzing trace with hash -958314221, now seen corresponding path program 1 times [2025-03-17 16:52:59,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:52:59,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [174400826] [2025-03-17 16:52:59,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:52:59,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:52:59,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:52:59,885 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 16:52:59,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 16:52:59,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 16:52:59,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 16:52:59,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:52:59,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:52:59,949 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 16:52:59,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 16:52:59,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 16:52:59,971 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 16:52:59,971 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 16:52:59,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174400826] [2025-03-17 16:52:59,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174400826] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:52:59,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:52:59,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 16:52:59,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058436633] [2025-03-17 16:52:59,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:52:59,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 16:52:59,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 16:52:59,973 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 16:52:59,973 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 16:52:59,973 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 3 states, 2 states have (on average 4.5) 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) [2025-03-17 16:52:59,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:52:59,985 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2025-03-17 16:52:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 16:52:59,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) 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 [2025-03-17 16:52:59,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:52:59,986 INFO L225 Difference]: With dead ends: 32 [2025-03-17 16:52:59,986 INFO L226 Difference]: Without dead ends: 31 [2025-03-17 16:52:59,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 16:52:59,986 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 16:52:59,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 47 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:52:59,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2025-03-17 16:52:59,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2025-03-17 16:52:59,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.391304347826087) internal successors, (32), 26 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 16:52:59,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2025-03-17 16:52:59,991 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 11 [2025-03-17 16:52:59,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:52:59,991 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2025-03-17 16:52:59,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) 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) [2025-03-17 16:52:59,991 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2025-03-17 16:52:59,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 16:52:59,992 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:52:59,992 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:52:59,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 16:53:00,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:53:00,198 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 16:53:00,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:53:00,199 INFO L85 PathProgramCache]: Analyzing trace with hash 365558370, now seen corresponding path program 1 times [2025-03-17 16:53:00,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:53:00,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2112226173] [2025-03-17 16:53:00,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:53:00,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:53:00,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:53:00,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 16:53:00,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 16:53:00,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 16:53:00,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 16:53:00,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:53:00,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:53:00,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 16:53:00,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 16:53:00,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 16:53:00,301 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 16:53:00,301 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 16:53:00,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112226173] [2025-03-17 16:53:00,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112226173] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:53:00,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:53:00,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 16:53:00,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270557711] [2025-03-17 16:53:00,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:53:00,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 16:53:00,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 16:53:00,304 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 16:53:00,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 16:53:00,304 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2025-03-17 16:53:00,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:53:00,334 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2025-03-17 16:53:00,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 16:53:00,335 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 [2025-03-17 16:53:00,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:53:00,336 INFO L225 Difference]: With dead ends: 50 [2025-03-17 16:53:00,336 INFO L226 Difference]: Without dead ends: 39 [2025-03-17 16:53:00,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 16:53:00,337 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 16:53:00,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 59 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:53:00,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2025-03-17 16:53:00,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2025-03-17 16:53:00,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 34 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-03-17 16:53:00,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2025-03-17 16:53:00,346 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 12 [2025-03-17 16:53:00,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:53:00,346 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2025-03-17 16:53:00,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2025-03-17 16:53:00,346 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2025-03-17 16:53:00,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-17 16:53:00,347 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:53:00,347 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:53:00,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 16:53:00,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:53:00,547 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2025-03-17 16:53:00,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:53:00,548 INFO L85 PathProgramCache]: Analyzing trace with hash -778346049, now seen corresponding path program 1 times [2025-03-17 16:53:00,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:53:00,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1928389700] [2025-03-17 16:53:00,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:53:00,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:53:00,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:53:00,550 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 16:53:00,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 16:53:00,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 16:53:00,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 16:53:00,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:53:00,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 16:53:00,611 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 16:53:00,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 16:53:00,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 16:53:00,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:53:00,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 16:53:00,641 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-17 16:53:00,641 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 16:53:00,642 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2025-03-17 16:53:00,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2025-03-17 16:53:00,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2025-03-17 16:53:00,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2025-03-17 16:53:00,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2025-03-17 16:53:00,643 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2025-03-17 16:53:00,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 16:53:00,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:53:00,846 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-17 16:53:00,867 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 16:53:00,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 04:53:00 BoogieIcfgContainer [2025-03-17 16:53:00,869 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 16:53:00,870 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 16:53:00,870 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 16:53:00,870 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 16:53:00,870 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:52:59" (3/4) ... [2025-03-17 16:53:00,872 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 16:53:00,872 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 16:53:00,872 INFO L158 Benchmark]: Toolchain (without parser) took 2569.44ms. Allocated memory is still 109.1MB. Free memory was 80.9MB in the beginning and 74.2MB in the end (delta: 6.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2025-03-17 16:53:00,873 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.4MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:53:00,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 739.11ms. Allocated memory is still 109.1MB. Free memory was 80.8MB in the beginning and 59.2MB in the end (delta: 21.6MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2025-03-17 16:53:00,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.82ms. Allocated memory is still 109.1MB. Free memory was 59.2MB in the beginning and 56.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:53:00,873 INFO L158 Benchmark]: Boogie Preprocessor took 38.53ms. Allocated memory is still 109.1MB. Free memory was 56.1MB in the beginning and 54.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:53:00,873 INFO L158 Benchmark]: IcfgBuilder took 259.08ms. Allocated memory is still 109.1MB. Free memory was 54.0MB in the beginning and 39.4MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 16:53:00,874 INFO L158 Benchmark]: TraceAbstraction took 1480.48ms. Allocated memory is still 109.1MB. Free memory was 38.8MB in the beginning and 74.9MB in the end (delta: -36.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2025-03-17 16:53:00,874 INFO L158 Benchmark]: Witness Printer took 2.43ms. Allocated memory is still 109.1MB. Free memory was 74.9MB in the beginning and 74.2MB in the end (delta: 685.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:53:00,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory was 61.5MB in the beginning and 61.4MB in the end (delta: 33.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 739.11ms. Allocated memory is still 109.1MB. Free memory was 80.8MB in the beginning and 59.2MB in the end (delta: 21.6MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.82ms. Allocated memory is still 109.1MB. Free memory was 59.2MB in the beginning and 56.8MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.53ms. Allocated memory is still 109.1MB. Free memory was 56.1MB in the beginning and 54.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 259.08ms. Allocated memory is still 109.1MB. Free memory was 54.0MB in the beginning and 39.4MB in the end (delta: 14.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1480.48ms. Allocated memory is still 109.1MB. Free memory was 38.8MB in the beginning and 74.9MB in the end (delta: -36.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 2.43ms. Allocated memory is still 109.1MB. Free memory was 74.9MB in the beginning and 74.2MB in the end (delta: 685.2kB). 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of fgets at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1579] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1579] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL CWE190_Integer_Overflow__int_fgets_preinc_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1553] COND TRUE i < 1 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1553] i++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1553] COND FALSE !(i < 1) [L1567] j = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1567] COND TRUE j < 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] [L1570] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, j=0] - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1553]: 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, 28 locations, 36 edges, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 136 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 78 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 144 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-17 16:53:00,890 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 Result: UNKNOWN: Overapproximated counterexample