./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/array-examples/relax-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/array-examples/relax-1.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G 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 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 10:04:46,680 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 10:04:46,732 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-06 10:04:46,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 10:04:46,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 10:04:46,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 10:04:46,750 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 10:04:46,750 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 10:04:46,750 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 10:04:46,750 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 10:04:46,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 10:04:46,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 10:04:46,750 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 10:04:46,751 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 10:04:46,751 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 10:04:46,751 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 10:04:46,751 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 10:04:46,751 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 10:04:46,751 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 10:04:46,751 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 10:04:46,751 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-06 10:04:46,751 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-06 10:04:46,751 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-06 10:04:46,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 10:04:46,752 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-06 10:04:46,752 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 10:04:46,752 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 10:04:46,752 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 10:04:46,752 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 10:04:46,752 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 10:04:46,752 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 10:04:46,752 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 10:04:46,752 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 10:04:46,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:04:46,753 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 10:04:46,753 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 10:04:46,753 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 10:04:46,753 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 10:04:46,753 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 10:04:46,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 10:04:46,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 10:04:46,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 10:04:46,753 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G 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 -> 4fcae0c4d0ca1fc30eac1578cd8b45001717e96b8c9c5f68d5df56e6c4fcd72c [2025-02-06 10:04:46,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 10:04:46,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 10:04:46,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 10:04:46,960 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 10:04:46,960 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 10:04:46,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/relax-1.i [2025-02-06 10:04:48,175 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ddce3dc06/3464a53d6e054dc1a90e1e352cdfd46a/FLAGd1516e703 [2025-02-06 10:04:48,463 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 10:04:48,464 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-examples/relax-1.i [2025-02-06 10:04:48,471 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ddce3dc06/3464a53d6e054dc1a90e1e352cdfd46a/FLAGd1516e703 [2025-02-06 10:04:48,480 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ddce3dc06/3464a53d6e054dc1a90e1e352cdfd46a [2025-02-06 10:04:48,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 10:04:48,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 10:04:48,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 10:04:48,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 10:04:48,487 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 10:04:48,487 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,488 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d830883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48, skipping insertion in model container [2025-02-06 10:04:48,488 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 10:04:48,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:04:48,700 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 10:04:48,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 10:04:48,748 INFO L204 MainTranslator]: Completed translation [2025-02-06 10:04:48,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48 WrapperNode [2025-02-06 10:04:48,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 10:04:48,749 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 10:04:48,749 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 10:04:48,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 10:04:48,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,762 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,775 INFO L138 Inliner]: procedures = 120, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 127 [2025-02-06 10:04:48,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 10:04:48,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 10:04:48,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 10:04:48,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 10:04:48,782 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,785 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,794 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [2, 6, 6]. 43 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2025-02-06 10:04:48,794 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,799 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,799 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,800 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 10:04:48,803 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 10:04:48,803 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 10:04:48,803 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 10:04:48,804 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (1/1) ... [2025-02-06 10:04:48,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 10:04:48,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 10:04:48,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 10:04:48,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 10:04:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 10:04:48,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 10:04:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 10:04:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 10:04:48,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 10:04:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 10:04:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 10:04:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 10:04:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 10:04:48,849 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 10:04:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 10:04:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 10:04:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 10:04:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 10:04:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 10:04:48,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 10:04:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 10:04:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 10:04:48,933 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 10:04:48,934 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 10:04:49,209 INFO L? ?]: Removed 95 outVars from TransFormulas that were not future-live. [2025-02-06 10:04:49,209 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 10:04:49,223 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 10:04:49,223 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 10:04:49,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:04:49 BoogieIcfgContainer [2025-02-06 10:04:49,223 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 10:04:49,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 10:04:49,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 10:04:49,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 10:04:49,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 10:04:48" (1/3) ... [2025-02-06 10:04:49,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ffa3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 10:04:49, skipping insertion in model container [2025-02-06 10:04:49,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 10:04:48" (2/3) ... [2025-02-06 10:04:49,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36ffa3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 10:04:49, skipping insertion in model container [2025-02-06 10:04:49,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:04:49" (3/3) ... [2025-02-06 10:04:49,234 INFO L128 eAbstractionObserver]: Analyzing ICFG relax-1.i [2025-02-06 10:04:49,244 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 10:04:49,245 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG relax-1.i that has 3 procedures, 96 locations, 1 initial locations, 3 loop locations, and 32 error locations. [2025-02-06 10:04:49,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 10:04:49,293 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;@6055b08b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 10:04:49,294 INFO L334 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2025-02-06 10:04:49,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 56 states have (on average 1.8928571428571428) internal successors, (106), 91 states have internal predecessors, (106), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-06 10:04:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-06 10:04:49,302 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:04:49,302 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 10:04:49,303 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 29 more)] === [2025-02-06 10:04:49,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:04:49,308 INFO L85 PathProgramCache]: Analyzing trace with hash 129753542, now seen corresponding path program 1 times [2025-02-06 10:04:49,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 10:04:49,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890719236] [2025-02-06 10:04:49,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:04:49,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 10:04:49,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 10:04:49,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 10:04:49,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:04:49,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 10:04:49,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 10:04:49,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 10:04:49,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890719236] [2025-02-06 10:04:49,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890719236] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 10:04:49,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 10:04:49,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 10:04:49,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645494001] [2025-02-06 10:04:49,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 10:04:49,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 10:04:49,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 10:04:49,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 10:04:49,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 10:04:49,670 INFO L87 Difference]: Start difference. First operand has 96 states, 56 states have (on average 1.8928571428571428) internal successors, (106), 91 states have internal predecessors, (106), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-02-06 10:04:49,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 10:04:49,763 INFO L93 Difference]: Finished difference Result 94 states and 111 transitions. [2025-02-06 10:04:49,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 10:04:49,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2025-02-06 10:04:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 10:04:49,769 INFO L225 Difference]: With dead ends: 94 [2025-02-06 10:04:49,769 INFO L226 Difference]: Without dead ends: 92 [2025-02-06 10:04:49,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 10:04:49,775 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 13 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 10:04:49,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 173 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 10:04:49,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2025-02-06 10:04:49,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2025-02-06 10:04:49,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 54 states have (on average 1.8333333333333333) internal successors, (99), 87 states have internal predecessors, (99), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-06 10:04:49,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 109 transitions. [2025-02-06 10:04:49,808 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 109 transitions. Word has length 5 [2025-02-06 10:04:49,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 10:04:49,808 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 109 transitions. [2025-02-06 10:04:49,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2025-02-06 10:04:49,809 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 109 transitions. [2025-02-06 10:04:49,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-06 10:04:49,809 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 10:04:49,809 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 10:04:49,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 10:04:49,810 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (and 29 more)] === [2025-02-06 10:04:49,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 10:04:49,811 INFO L85 PathProgramCache]: Analyzing trace with hash 129753543, now seen corresponding path program 1 times [2025-02-06 10:04:49,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 10:04:49,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121581637] [2025-02-06 10:04:49,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 10:04:49,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 10:04:49,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 10:04:49,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 10:04:49,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:04:49,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 10:04:49,847 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 10:04:49,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 10:04:49,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 10:04:49,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 10:04:49,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 10:04:49,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 10:04:49,889 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 10:04:49,890 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 32 remaining) [2025-02-06 10:04:49,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (30 of 32 remaining) [2025-02-06 10:04:49,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE (29 of 32 remaining) [2025-02-06 10:04:49,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE (28 of 32 remaining) [2025-02-06 10:04:49,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_FREE (27 of 32 remaining) [2025-02-06 10:04:49,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_FREE (26 of 32 remaining) [2025-02-06 10:04:49,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_FREE (25 of 32 remaining) [2025-02-06 10:04:49,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_FREE (24 of 32 remaining) [2025-02-06 10:04:49,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 32 remaining) [2025-02-06 10:04:49,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 32 remaining) [2025-02-06 10:04:49,893 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 32 remaining) [2025-02-06 10:04:49,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 32 remaining) [2025-02-06 10:04:49,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 32 remaining) [2025-02-06 10:04:49,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 32 remaining) [2025-02-06 10:04:49,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 32 remaining) [2025-02-06 10:04:49,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 32 remaining) [2025-02-06 10:04:49,894 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 32 remaining) [2025-02-06 10:04:49,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 32 remaining) [2025-02-06 10:04:49,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 32 remaining) [2025-02-06 10:04:49,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 32 remaining) [2025-02-06 10:04:49,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 32 remaining) [2025-02-06 10:04:49,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 32 remaining) [2025-02-06 10:04:49,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 32 remaining) [2025-02-06 10:04:49,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 32 remaining) [2025-02-06 10:04:49,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 32 remaining) [2025-02-06 10:04:49,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 32 remaining) [2025-02-06 10:04:49,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 32 remaining) [2025-02-06 10:04:49,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 32 remaining) [2025-02-06 10:04:49,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 32 remaining) [2025-02-06 10:04:49,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 32 remaining) [2025-02-06 10:04:49,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 32 remaining) [2025-02-06 10:04:49,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 32 remaining) [2025-02-06 10:04:49,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 10:04:49,899 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-06 10:04:49,911 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-06 10:04:49,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.02 10:04:49 BoogieIcfgContainer [2025-02-06 10:04:49,915 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-06 10:04:49,916 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-06 10:04:49,916 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-06 10:04:49,916 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-06 10:04:49,917 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 10:04:49" (3/4) ... [2025-02-06 10:04:49,917 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-02-06 10:04:49,946 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 4. [2025-02-06 10:04:49,976 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-06 10:04:49,976 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-06 10:04:49,977 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-06 10:04:49,977 INFO L158 Benchmark]: Toolchain (without parser) took 1494.38ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 83.6MB in the end (delta: 21.2MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2025-02-06 10:04:49,978 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 226.5MB. Free memory is still 143.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:04:49,978 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.16ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 87.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 10:04:49,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.46ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 85.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:04:49,978 INFO L158 Benchmark]: Boogie Preprocessor took 26.07ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 82.9MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 10:04:49,978 INFO L158 Benchmark]: IcfgBuilder took 420.68ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 59.8MB in the end (delta: 23.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-06 10:04:49,979 INFO L158 Benchmark]: TraceAbstraction took 689.19ms. Allocated memory is still 142.6MB. Free memory was 58.9MB in the beginning and 89.0MB in the end (delta: -30.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-06 10:04:49,979 INFO L158 Benchmark]: Witness Printer took 60.77ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 83.6MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-06 10:04:49,980 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 226.5MB. Free memory is still 143.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.16ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 87.0MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.46ms. Allocated memory is still 142.6MB. Free memory was 87.0MB in the beginning and 85.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.07ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 82.9MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 420.68ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 59.8MB in the end (delta: 23.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 689.19ms. Allocated memory is still 142.6MB. Free memory was 58.9MB in the beginning and 89.0MB in the end (delta: -30.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 60.77ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 83.6MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L599] unsigned long pat_len = __VERIFIER_nondet_ulong(), a_len = __VERIFIER_nondet_ulong(); [L600] int *pat=malloc(sizeof(int)*pat_len); [L601] int *a=malloc(sizeof(int)*a_len); [L602] CALL is_relaxed_prefix(pat, pat_len, a, a_len) [L579] COND FALSE !(pat_length>a_length+1) [L581] int shift=0; [L582] int i=0; VAL [a={-1:0}, a_length=-2, i=0, pat={-3:0}, pat_length=-3221225472, shift=0] [L582] COND TRUE i