./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-memsafety/diff_usafe.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-memsafety/diff_usafe.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60b44baec8d5c42666f1f962a9b95cfd7e6c75178322ade094b7a047963f4b64 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:45:37,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:45:37,992 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-17 11:45:37,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:45:37,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:45:38,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:45:38,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:45:38,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:45:38,020 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:45:38,020 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:45:38,020 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:45:38,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:45:38,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:45:38,021 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:45:38,021 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:45:38,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:45:38,021 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:45:38,021 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:45:38,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:45:38,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:45:38,022 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:45:38,022 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:45:38,022 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-17 11:45:38,022 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:45:38,022 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:45:38,022 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:45:38,022 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:45:38,022 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:45:38,022 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:45:38,023 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:45:38,023 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:45:38,023 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:45:38,023 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:45:38,023 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:45:38,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:45:38,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:45:38,023 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:45:38,024 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:45:38,024 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:45:38,024 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:45:38,024 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:45:38,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:45:38,024 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60b44baec8d5c42666f1f962a9b95cfd7e6c75178322ade094b7a047963f4b64 [2025-03-17 11:45:38,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:45:38,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:45:38,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:45:38,221 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:45:38,222 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:45:38,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/diff_usafe.c [2025-03-17 11:45:39,303 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364657db7/8ffe1127aa984193bd99429a9f954769/FLAG74f87e7e3 [2025-03-17 11:45:39,537 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:45:39,538 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/diff_usafe.c [2025-03-17 11:45:39,546 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364657db7/8ffe1127aa984193bd99429a9f954769/FLAG74f87e7e3 [2025-03-17 11:45:39,562 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364657db7/8ffe1127aa984193bd99429a9f954769 [2025-03-17 11:45:39,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:45:39,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:45:39,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:45:39,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:45:39,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:45:39,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,572 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22da2d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39, skipping insertion in model container [2025-03-17 11:45:39,572 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,582 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:45:39,681 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:45:39,689 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:45:39,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:45:39,709 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:45:39,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39 WrapperNode [2025-03-17 11:45:39,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:45:39,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:45:39,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:45:39,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:45:39,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,720 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,732 INFO L138 Inliner]: procedures = 8, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2025-03-17 11:45:39,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:45:39,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:45:39,734 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:45:39,734 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:45:39,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,740 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,752 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [1, 2, 1]. 50 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0, 0, 0]. The 1 writes are split as follows [1, 0, 0]. [2025-03-17 11:45:39,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,752 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,756 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,757 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:45:39,759 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:45:39,759 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:45:39,759 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:45:39,760 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (1/1) ... [2025-03-17 11:45:39,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:45:39,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:45:39,782 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 11:45:39,786 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 11:45:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 11:45:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 11:45:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 11:45:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:45:39,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:45:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 11:45:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 11:45:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 11:45:39,851 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:45:39,853 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:45:40,002 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2025-03-17 11:45:40,002 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:45:40,013 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:45:40,013 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:45:40,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:45:40 BoogieIcfgContainer [2025-03-17 11:45:40,014 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:45:40,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:45:40,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:45:40,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:45:40,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:45:39" (1/3) ... [2025-03-17 11:45:40,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f21a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:45:40, skipping insertion in model container [2025-03-17 11:45:40,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:45:39" (2/3) ... [2025-03-17 11:45:40,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f21a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:45:40, skipping insertion in model container [2025-03-17 11:45:40,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:45:40" (3/3) ... [2025-03-17 11:45:40,022 INFO L128 eAbstractionObserver]: Analyzing ICFG diff_usafe.c [2025-03-17 11:45:40,034 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:45:40,036 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG diff_usafe.c that has 1 procedures, 23 locations, 1 initial locations, 2 loop locations, and 9 error locations. [2025-03-17 11:45:40,062 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:45:40,071 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=None, 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;@54529639, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:45:40,071 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-03-17 11:45:40,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 13 states have (on average 2.0) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:45:40,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 11:45:40,079 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:45:40,079 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 11:45:40,079 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2025-03-17 11:45:40,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:45:40,085 INFO L85 PathProgramCache]: Analyzing trace with hash 52918, now seen corresponding path program 1 times [2025-03-17 11:45:40,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:45:40,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84441257] [2025-03-17 11:45:40,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:45:40,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:45:40,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 11:45:40,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 11:45:40,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:45:40,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:45:40,203 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 11:45:40,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:45:40,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84441257] [2025-03-17 11:45:40,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84441257] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:45:40,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:45:40,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 11:45:40,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046602123] [2025-03-17 11:45:40,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:45:40,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:45:40,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:45:40,225 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:45:40,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:45:40,226 INFO L87 Difference]: Start difference. First operand has 23 states, 13 states have (on average 2.0) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:45:40,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:45:40,248 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2025-03-17 11:45:40,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:45:40,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2025-03-17 11:45:40,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:45:40,253 INFO L225 Difference]: With dead ends: 22 [2025-03-17 11:45:40,253 INFO L226 Difference]: Without dead ends: 19 [2025-03-17 11:45:40,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 11:45:40,256 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 21 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:45:40,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 17 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:45:40,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2025-03-17 11:45:40,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2025-03-17 11:45:40,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 11 states have (on average 2.0) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:45:40,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2025-03-17 11:45:40,277 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 3 [2025-03-17 11:45:40,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:45:40,277 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2025-03-17 11:45:40,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:45:40,277 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2025-03-17 11:45:40,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-17 11:45:40,277 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:45:40,277 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-17 11:45:40,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 11:45:40,278 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] === [2025-03-17 11:45:40,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:45:40,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1661278, now seen corresponding path program 1 times [2025-03-17 11:45:40,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:45:40,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932707103] [2025-03-17 11:45:40,278 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:45:40,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:45:40,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 11:45:40,291 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 11:45:40,291 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:45:40,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 11:45:40,292 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 11:45:40,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 11:45:40,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 11:45:40,298 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:45:40,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 11:45:40,310 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 11:45:40,310 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 11:45:40,311 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 9 remaining) [2025-03-17 11:45:40,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (7 of 9 remaining) [2025-03-17 11:45:40,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 9 remaining) [2025-03-17 11:45:40,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 9 remaining) [2025-03-17 11:45:40,312 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 9 remaining) [2025-03-17 11:45:40,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 9 remaining) [2025-03-17 11:45:40,313 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 9 remaining) [2025-03-17 11:45:40,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 9 remaining) [2025-03-17 11:45:40,314 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 9 remaining) [2025-03-17 11:45:40,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 11:45:40,319 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-17 11:45:40,329 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 11:45:40,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 11:45:40 BoogieIcfgContainer [2025-03-17 11:45:40,331 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 11:45:40,332 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 11:45:40,332 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 11:45:40,332 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 11:45:40,332 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:45:40" (3/4) ... [2025-03-17 11:45:40,333 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-17 11:45:40,361 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 4. [2025-03-17 11:45:40,387 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 11:45:40,388 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 11:45:40,388 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 11:45:40,388 INFO L158 Benchmark]: Toolchain (without parser) took 822.02ms. Allocated memory is still 201.3MB. Free memory was 155.1MB in the beginning and 101.0MB in the end (delta: 54.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-03-17 11:45:40,389 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 201.3MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:45:40,389 INFO L158 Benchmark]: CACSL2BoogieTranslator took 142.51ms. Allocated memory is still 201.3MB. Free memory was 154.7MB in the beginning and 144.4MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 11:45:40,389 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.37ms. Allocated memory is still 201.3MB. Free memory was 144.4MB in the beginning and 143.4MB in the end (delta: 947.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:45:40,389 INFO L158 Benchmark]: Boogie Preprocessor took 24.51ms. Allocated memory is still 201.3MB. Free memory was 143.4MB in the beginning and 142.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:45:40,389 INFO L158 Benchmark]: IcfgBuilder took 254.93ms. Allocated memory is still 201.3MB. Free memory was 141.7MB in the beginning and 128.1MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 11:45:40,390 INFO L158 Benchmark]: TraceAbstraction took 315.62ms. Allocated memory is still 201.3MB. Free memory was 127.7MB in the beginning and 106.7MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-17 11:45:40,390 INFO L158 Benchmark]: Witness Printer took 56.27ms. Allocated memory is still 201.3MB. Free memory was 106.2MB in the beginning and 101.5MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:45:40,391 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 201.3MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 142.51ms. Allocated memory is still 201.3MB. Free memory was 154.7MB in the beginning and 144.4MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.37ms. Allocated memory is still 201.3MB. Free memory was 144.4MB in the beginning and 143.4MB in the end (delta: 947.2kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.51ms. Allocated memory is still 201.3MB. Free memory was 143.4MB in the beginning and 142.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 254.93ms. Allocated memory is still 201.3MB. Free memory was 141.7MB in the beginning and 128.1MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 315.62ms. Allocated memory is still 201.3MB. Free memory was 127.7MB in the beginning and 106.7MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 56.27ms. Allocated memory is still 201.3MB. Free memory was 106.2MB in the beginning and 101.5MB in the end (delta: 4.8MB). 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 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L30] int *A; [L31] int Alen = __VERIFIER_nondet_int(); [L32] int *B; [L33] int Blen = __VERIFIER_nondet_int(); [L34] int *D; [L35] CALL diff(A, Alen, B, Blen, D) [L5] int k = 0; [L6] int i = 0; [L7] int l1 = Alen; [L8] int l2 = Blen; [L9] int found; VAL [A={5:7}, B={6:9}, D={8:4}, i=0, k=0, l1=2, l2=3] [L11] COND TRUE i < l1 [L12] int j = 0; [L13] found = 0 VAL [A={5:7}, B={6:9}, D={8:4}, found=0, i=0, j=0, k=0, l1=2, l2=3] [L14] COND TRUE j < l2 && !found [L15] A[i] - UnprovableResult [Line: 29]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 26 edges, 9 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-17 11:45:40,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)