./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_13_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_add_13_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 d2965ba2f95fa88a11de221781578b1346697c68ecd81d7cf3354351e788228d --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 16:49:47,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 16:49:47,200 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 16:49:47,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 16:49:47,206 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 16:49:47,224 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 16:49:47,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 16:49:47,225 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 16:49:47,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 16:49:47,226 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 16:49:47,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 16:49:47,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 16:49:47,227 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 16:49:47,227 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 16:49:47,227 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 16:49:47,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 16:49:47,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 16:49:47,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 16:49:47,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 16:49:47,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 16:49:47,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 16:49:47,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 16:49:47,228 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 16:49:47,228 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 16:49:47,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 16:49:47,228 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 16:49:47,228 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 16:49:47,228 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 16:49:47,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 16:49:47,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 16:49:47,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 16:49:47,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:49:47,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 16:49:47,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 16:49:47,229 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 16:49:47,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 16:49:47,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 16:49:47,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 16:49:47,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 16:49:47,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 16:49:47,230 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 16:49:47,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 16:49:47,230 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 -> d2965ba2f95fa88a11de221781578b1346697c68ecd81d7cf3354351e788228d [2025-03-17 16:49:47,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 16:49:47,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 16:49:47,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 16:49:47,473 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 16:49:47,473 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 16:49:47,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_13_bad.i [2025-03-17 16:49:48,677 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67d2bdb4b/65c7f32cd1854e9faf716fcc84981f0f/FLAGf9c422f01 [2025-03-17 16:49:49,035 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 16:49:49,036 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_13_bad.i [2025-03-17 16:49:49,056 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67d2bdb4b/65c7f32cd1854e9faf716fcc84981f0f/FLAGf9c422f01 [2025-03-17 16:49:49,261 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67d2bdb4b/65c7f32cd1854e9faf716fcc84981f0f [2025-03-17 16:49:49,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 16:49:49,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 16:49:49,265 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 16:49:49,265 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 16:49:49,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 16:49:49,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:49:49" (1/1) ... [2025-03-17 16:49:49,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d21bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:49, skipping insertion in model container [2025-03-17 16:49:49,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:49:49" (1/1) ... [2025-03-17 16:49:49,306 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 16:49:49,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:49:49,922 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 16:49:49,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:49:50,077 INFO L204 MainTranslator]: Completed translation [2025-03-17 16:49:50,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50 WrapperNode [2025-03-17 16:49:50,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 16:49:50,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 16:49:50,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 16:49:50,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 16:49:50,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (1/1) ... [2025-03-17 16:49:50,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (1/1) ... [2025-03-17 16:49:50,128 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2025-03-17 16:49:50,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 16:49:50,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 16:49:50,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 16:49:50,129 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 16:49:50,135 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (1/1) ... [2025-03-17 16:49:50,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (1/1) ... [2025-03-17 16:49:50,138 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (1/1) ... [2025-03-17 16:49:50,153 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 16:49:50,153 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (1/1) ... [2025-03-17 16:49:50,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (1/1) ... [2025-03-17 16:49:50,157 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (1/1) ... [2025-03-17 16:49:50,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (1/1) ... [2025-03-17 16:49:50,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (1/1) ... [2025-03-17 16:49:50,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (1/1) ... [2025-03-17 16:49:50,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 16:49:50,168 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 16:49:50,169 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 16:49:50,169 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 16:49:50,170 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (1/1) ... [2025-03-17 16:49:50,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:49:50,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:49:50,217 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 16:49:50,219 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 16:49:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-17 16:49:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-17 16:49:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 16:49:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 16:49:50,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 16:49:50,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 16:49:50,339 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 16:49:50,341 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 16:49:50,429 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2025-03-17 16:49:50,430 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 16:49:50,437 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 16:49:50,438 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 16:49:50,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:49:50 BoogieIcfgContainer [2025-03-17 16:49:50,438 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 16:49:50,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 16:49:50,441 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 16:49:50,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 16:49:50,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 04:49:49" (1/3) ... [2025-03-17 16:49:50,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7792f9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:49:50, skipping insertion in model container [2025-03-17 16:49:50,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:50" (2/3) ... [2025-03-17 16:49:50,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7792f9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:49:50, skipping insertion in model container [2025-03-17 16:49:50,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:49:50" (3/3) ... [2025-03-17 16:49:50,448 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_13_bad.i [2025-03-17 16:49:50,459 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 16:49:50,460 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_add_13_bad.i that has 2 procedures, 21 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-17 16:49:50,506 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 16:49:50,515 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;@5550b7df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 16:49:50,516 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 16:49:50,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 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 16:49:50,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-17 16:49:50,524 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:49:50,524 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:49:50,525 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 16:49:50,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:49:50,528 INFO L85 PathProgramCache]: Analyzing trace with hash 412552476, now seen corresponding path program 1 times [2025-03-17 16:49:50,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 16:49:50,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975853216] [2025-03-17 16:49:50,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:49:50,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 16:49:50,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 16:49:50,622 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 16:49:50,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:49:50,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:49:50,725 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 16:49:50,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 16:49:50,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975853216] [2025-03-17 16:49:50,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975853216] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:49:50,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:49:50,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 16:49:50,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779744971] [2025-03-17 16:49:50,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:49:50,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 16:49:50,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 16:49:50,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 16:49:50,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 16:49:50,747 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 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 16:49:50,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:49:50,767 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2025-03-17 16:49:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 16:49:50,770 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 16:49:50,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:49:50,774 INFO L225 Difference]: With dead ends: 35 [2025-03-17 16:49:50,775 INFO L226 Difference]: Without dead ends: 16 [2025-03-17 16:49:50,777 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 16:49:50,780 INFO L435 NwaCegarLoop]: 22 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 16:49:50,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:49:50,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-03-17 16:49:50,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-03-17 16:49:50,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 16:49:50,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2025-03-17 16:49:50,810 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2025-03-17 16:49:50,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:49:50,811 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2025-03-17 16:49:50,812 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 16:49:50,812 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2025-03-17 16:49:50,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 16:49:50,814 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:49:50,814 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:49:50,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 16:49:50,814 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 16:49:50,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:49:50,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1325107290, now seen corresponding path program 1 times [2025-03-17 16:49:50,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 16:49:50,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749787466] [2025-03-17 16:49:50,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:49:50,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 16:49:50,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 16:49:50,850 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 16:49:50,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:49:50,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:49:50,921 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 16:49:50,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 16:49:50,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749787466] [2025-03-17 16:49:50,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749787466] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:49:50,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:49:50,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 16:49:50,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624815598] [2025-03-17 16:49:50,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:49:50,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 16:49:50,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 16:49:50,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 16:49:50,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 16:49:50,923 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 16:49:50,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:49:50,930 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2025-03-17 16:49:50,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 16:49:50,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-03-17 16:49:50,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:49:50,930 INFO L225 Difference]: With dead ends: 16 [2025-03-17 16:49:50,931 INFO L226 Difference]: Without dead ends: 15 [2025-03-17 16:49:50,931 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 16:49:50,931 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 16:49:50,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:49:50,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-03-17 16:49:50,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-03-17 16:49:50,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 16:49:50,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2025-03-17 16:49:50,934 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2025-03-17 16:49:50,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:49:50,934 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2025-03-17 16:49:50,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 16:49:50,934 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2025-03-17 16:49:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-17 16:49:50,935 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:49:50,935 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:49:50,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 16:49:50,935 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 16:49:50,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:49:50,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1871346993, now seen corresponding path program 1 times [2025-03-17 16:49:50,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 16:49:50,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555150854] [2025-03-17 16:49:50,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:49:50,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 16:49:50,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 16:49:50,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 16:49:50,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:49:50,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 16:49:50,961 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 16:49:50,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 16:49:50,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 16:49:50,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:49:50,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 16:49:50,990 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 16:49:50,990 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 16:49:50,991 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-17 16:49:50,994 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-17 16:49:50,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 16:49:50,998 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-17 16:49:51,015 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 16:49:51,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 04:49:51 BoogieIcfgContainer [2025-03-17 16:49:51,017 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 16:49:51,018 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 16:49:51,018 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 16:49:51,018 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 16:49:51,018 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:49:50" (3/4) ... [2025-03-17 16:49:51,020 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 16:49:51,020 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 16:49:51,021 INFO L158 Benchmark]: Toolchain (without parser) took 1757.09ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 61.5MB in the end (delta: 46.9MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2025-03-17 16:49:51,021 INFO L158 Benchmark]: CDTParser took 0.98ms. Allocated memory is still 201.3MB. Free memory is still 130.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:49:51,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 814.77ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 46.9MB in the end (delta: 61.5MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-17 16:49:51,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.64ms. Allocated memory is still 142.6MB. Free memory was 46.9MB in the beginning and 44.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:49:51,021 INFO L158 Benchmark]: Boogie Preprocessor took 38.49ms. Allocated memory is still 142.6MB. Free memory was 44.2MB in the beginning and 42.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:49:51,021 INFO L158 Benchmark]: IcfgBuilder took 270.76ms. Allocated memory is still 142.6MB. Free memory was 42.4MB in the beginning and 100.5MB in the end (delta: -58.1MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2025-03-17 16:49:51,022 INFO L158 Benchmark]: TraceAbstraction took 576.58ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 61.5MB in the end (delta: 38.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-17 16:49:51,022 INFO L158 Benchmark]: Witness Printer took 2.50ms. Allocated memory is still 142.6MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:49:51,027 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98ms. Allocated memory is still 201.3MB. Free memory is still 130.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 814.77ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 46.9MB in the end (delta: 61.5MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.64ms. Allocated memory is still 142.6MB. Free memory was 46.9MB in the beginning and 44.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.49ms. Allocated memory is still 142.6MB. Free memory was 44.2MB in the beginning and 42.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 270.76ms. Allocated memory is still 142.6MB. Free memory was 42.4MB in the beginning and 100.5MB in the end (delta: -58.1MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * TraceAbstraction took 576.58ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 61.5MB in the end (delta: 38.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 2.50ms. Allocated memory is still 142.6MB. Free memory is still 61.5MB. 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE190_Integer_Overflow__int_fgets_add_13_bad() [L1550] int data; [L1551] data = 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] [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1566] COND TRUE GLOBAL_CONST_FIVE==5 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] [L1569] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: 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, 21 locations, 29 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 37 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-17 16:49:51,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_add_13_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 d2965ba2f95fa88a11de221781578b1346697c68ecd81d7cf3354351e788228d --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 16:49:52,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 16:49:53,046 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2025-03-17 16:49:53,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 16:49:53,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 16:49:53,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2025-03-17 16:49:53,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 16:49:53,077 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 16:49:53,077 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 16:49:53,077 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 16:49:53,078 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 16:49:53,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 16:49:53,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 16:49:53,078 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 16:49:53,078 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 16:49:53,078 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 16:49:53,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 16:49:53,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 16:49:53,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 16:49:53,078 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 16:49:53,078 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 16:49:53,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 16:49:53,080 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 16:49:53,081 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 16:49:53,081 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 16:49:53,081 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 16:49:53,081 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 16:49:53,081 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 16:49:53,081 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 16:49:53,082 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 16:49:53,082 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 16:49:53,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 16:49:53,082 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 16:49:53,082 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 16:49:53,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:49:53,083 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 16:49:53,083 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 16:49:53,083 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 16:49:53,083 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 16:49:53,083 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 16:49:53,083 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 16:49:53,083 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 16:49:53,083 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 16:49:53,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 16:49:53,084 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 16:49:53,084 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 -> d2965ba2f95fa88a11de221781578b1346697c68ecd81d7cf3354351e788228d [2025-03-17 16:49:53,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 16:49:53,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 16:49:53,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 16:49:53,373 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 16:49:53,373 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 16:49:53,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_13_bad.i [2025-03-17 16:49:54,567 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44779050e/0f7b2f2fbc8b40969d9a4529651597cf/FLAG013825790 [2025-03-17 16:49:54,801 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 16:49:54,802 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_13_bad.i [2025-03-17 16:49:54,822 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44779050e/0f7b2f2fbc8b40969d9a4529651597cf/FLAG013825790 [2025-03-17 16:49:55,117 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44779050e/0f7b2f2fbc8b40969d9a4529651597cf [2025-03-17 16:49:55,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 16:49:55,120 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 16:49:55,121 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 16:49:55,121 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 16:49:55,124 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 16:49:55,125 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@691031a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55, skipping insertion in model container [2025-03-17 16:49:55,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,162 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 16:49:55,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:49:55,683 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 16:49:55,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 16:49:55,888 INFO L204 MainTranslator]: Completed translation [2025-03-17 16:49:55,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55 WrapperNode [2025-03-17 16:49:55,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 16:49:55,889 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 16:49:55,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 16:49:55,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 16:49:55,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,911 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,926 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2025-03-17 16:49:55,927 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 16:49:55,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 16:49:55,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 16:49:55,928 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 16:49:55,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,938 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,954 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 16:49:55,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,967 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 16:49:55,977 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 16:49:55,977 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 16:49:55,977 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 16:49:55,978 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (1/1) ... [2025-03-17 16:49:55,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 16:49:55,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:49:56,012 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 16:49:56,018 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 16:49:56,035 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2025-03-17 16:49:56,036 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2025-03-17 16:49:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 16:49:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 16:49:56,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 16:49:56,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 16:49:56,174 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 16:49:56,175 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 16:49:56,300 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2025-03-17 16:49:56,300 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 16:49:56,309 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 16:49:56,309 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 16:49:56,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:49:56 BoogieIcfgContainer [2025-03-17 16:49:56,310 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 16:49:56,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 16:49:56,312 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 16:49:56,315 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 16:49:56,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 04:49:55" (1/3) ... [2025-03-17 16:49:56,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@914c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:49:56, skipping insertion in model container [2025-03-17 16:49:56,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 04:49:55" (2/3) ... [2025-03-17 16:49:56,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@914c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 04:49:56, skipping insertion in model container [2025-03-17 16:49:56,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:49:56" (3/3) ... [2025-03-17 16:49:56,318 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_13_bad.i [2025-03-17 16:49:56,328 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 16:49:56,330 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_add_13_bad.i that has 2 procedures, 21 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-17 16:49:56,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 16:49:56,393 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;@6d6f368d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 16:49:56,393 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 16:49:56,397 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 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 16:49:56,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-17 16:49:56,402 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:49:56,402 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:49:56,402 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 16:49:56,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:49:56,408 INFO L85 PathProgramCache]: Analyzing trace with hash 412552476, now seen corresponding path program 1 times [2025-03-17 16:49:56,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:49:56,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1837801842] [2025-03-17 16:49:56,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:49:56,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:49:56,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:49:56,420 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 16:49:56,422 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 16:49:56,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 16:49:56,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 16:49:56,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:49:56,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:49:56,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-17 16:49:56,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 16:49:56,524 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 16:49:56,524 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 16:49:56,525 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 16:49:56,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837801842] [2025-03-17 16:49:56,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837801842] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:49:56,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:49:56,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 16:49:56,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233631065] [2025-03-17 16:49:56,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:49:56,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 16:49:56,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 16:49:56,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 16:49:56,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 16:49:56,543 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 17 states have internal predecessors, (20), 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 16:49:56,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:49:56,554 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2025-03-17 16:49:56,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 16:49:56,555 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 16:49:56,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:49:56,559 INFO L225 Difference]: With dead ends: 21 [2025-03-17 16:49:56,560 INFO L226 Difference]: Without dead ends: 15 [2025-03-17 16:49:56,562 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 16:49:56,564 INFO L435 NwaCegarLoop]: 25 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, 25 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 16:49:56,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:49:56,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-03-17 16:49:56,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-03-17 16:49:56,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-03-17 16:49:56,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2025-03-17 16:49:56,594 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 18 transitions. Word has length 10 [2025-03-17 16:49:56,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:49:56,595 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 18 transitions. [2025-03-17 16:49:56,595 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 16:49:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2025-03-17 16:49:56,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 16:49:56,596 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:49:56,597 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:49:56,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 16:49:56,802 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 16:49:56,802 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 16:49:56,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:49:56,803 INFO L85 PathProgramCache]: Analyzing trace with hash -95775155, now seen corresponding path program 1 times [2025-03-17 16:49:56,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:49:56,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1401221414] [2025-03-17 16:49:56,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:49:56,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:49:56,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:49:56,807 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 16:49:56,809 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 16:49:56,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 16:49:56,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 16:49:56,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:49:56,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 16:49:56,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 16:49:56,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 16:49:56,905 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 16:49:56,906 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 16:49:56,906 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 16:49:56,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401221414] [2025-03-17 16:49:56,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401221414] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 16:49:56,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 16:49:56,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 16:49:56,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240131983] [2025-03-17 16:49:56,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 16:49:56,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 16:49:56,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 16:49:56,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 16:49:56,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 16:49:56,909 INFO L87 Difference]: Start difference. First operand 15 states and 18 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 16:49:56,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 16:49:56,919 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2025-03-17 16:49:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 16:49:56,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2025-03-17 16:49:56,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 16:49:56,920 INFO L225 Difference]: With dead ends: 19 [2025-03-17 16:49:56,921 INFO L226 Difference]: Without dead ends: 15 [2025-03-17 16:49:56,921 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 16:49:56,921 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 16:49:56,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 15 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 16:49:56,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2025-03-17 16:49:56,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2025-03-17 16:49:56,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 16:49:56,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2025-03-17 16:49:56,925 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2025-03-17 16:49:56,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 16:49:56,925 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2025-03-17 16:49:56,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-17 16:49:56,926 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2025-03-17 16:49:56,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-17 16:49:56,926 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 16:49:56,926 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 16:49:56,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 16:49:57,130 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 16:49:57,130 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2025-03-17 16:49:57,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 16:49:57,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1871346993, now seen corresponding path program 1 times [2025-03-17 16:49:57,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 16:49:57,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1440805623] [2025-03-17 16:49:57,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 16:49:57,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 16:49:57,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 16:49:57,134 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 16:49:57,135 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 16:49:57,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 16:49:57,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 16:49:57,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:49:57,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 16:49:57,206 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 16:49:57,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 16:49:57,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 16:49:57,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 16:49:57,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 16:49:57,252 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2025-03-17 16:49:57,252 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 16:49:57,253 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2025-03-17 16:49:57,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2025-03-17 16:49:57,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 16:49:57,455 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 16:49:57,458 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-17 16:49:57,476 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 16:49:57,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 04:49:57 BoogieIcfgContainer [2025-03-17 16:49:57,480 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 16:49:57,481 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 16:49:57,481 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 16:49:57,481 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 16:49:57,482 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 04:49:56" (3/4) ... [2025-03-17 16:49:57,483 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-17 16:49:57,484 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 16:49:57,485 INFO L158 Benchmark]: Toolchain (without parser) took 2364.57ms. Allocated memory is still 83.9MB. Free memory was 56.3MB in the beginning and 48.2MB in the end (delta: 8.1MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2025-03-17 16:49:57,485 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:49:57,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 767.88ms. Allocated memory is still 83.9MB. Free memory was 56.3MB in the beginning and 51.4MB in the end (delta: 4.9MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2025-03-17 16:49:57,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.53ms. Allocated memory is still 83.9MB. Free memory was 51.4MB in the beginning and 48.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:49:57,486 INFO L158 Benchmark]: Boogie Preprocessor took 48.96ms. Allocated memory is still 83.9MB. Free memory was 48.7MB in the beginning and 46.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:49:57,486 INFO L158 Benchmark]: IcfgBuilder took 333.04ms. Allocated memory is still 83.9MB. Free memory was 46.4MB in the beginning and 32.9MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 16:49:57,486 INFO L158 Benchmark]: TraceAbstraction took 1168.74ms. Allocated memory is still 83.9MB. Free memory was 32.5MB in the beginning and 48.2MB in the end (delta: -15.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2025-03-17 16:49:57,487 INFO L158 Benchmark]: Witness Printer took 3.50ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 48.2MB in the end (delta: 2.8kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 16:49:57,489 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 767.88ms. Allocated memory is still 83.9MB. Free memory was 56.3MB in the beginning and 51.4MB in the end (delta: 4.9MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.53ms. Allocated memory is still 83.9MB. Free memory was 51.4MB in the beginning and 48.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.96ms. Allocated memory is still 83.9MB. Free memory was 48.7MB in the beginning and 46.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 333.04ms. Allocated memory is still 83.9MB. Free memory was 46.4MB in the beginning and 32.9MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1168.74ms. Allocated memory is still 83.9MB. Free memory was 32.5MB in the beginning and 48.2MB in the end (delta: -15.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Witness Printer took 3.50ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 48.2MB in the end (delta: 2.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE190_Integer_Overflow__int_fgets_add_13_bad() [L1550] int data; [L1551] data = 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] [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1566] COND TRUE GLOBAL_CONST_FIVE==5 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] [L1569] data + 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: 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, 21 locations, 29 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 40 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-17 16:49:57,503 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