./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/loops/sum_array-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 798a7b37 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/loops/sum_array-2.i -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 84226515a723f10f2a919f265c45890771224ac18b5dd5f986441c53175929f5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 08:01:49,796 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 08:01:49,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-04 08:01:49,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 08:01:49,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 08:01:49,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 08:01:49,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 08:01:49,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 08:01:49,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 08:01:49,870 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 08:01:49,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 08:01:49,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 08:01:49,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 08:01:49,871 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 08:01:49,872 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 08:01:49,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 08:01:49,872 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 08:01:49,874 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 -> 84226515a723f10f2a919f265c45890771224ac18b5dd5f986441c53175929f5 [2025-03-04 08:01:50,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 08:01:50,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 08:01:50,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 08:01:50,119 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 08:01:50,119 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 08:01:50,121 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum_array-2.i [2025-03-04 08:01:51,243 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19612c0bf/44dd871570fe4e36bb3386ae6cd8b252/FLAG014a27a6a [2025-03-04 08:01:51,470 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 08:01:51,470 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-2.i [2025-03-04 08:01:51,478 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19612c0bf/44dd871570fe4e36bb3386ae6cd8b252/FLAG014a27a6a [2025-03-04 08:01:51,826 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19612c0bf/44dd871570fe4e36bb3386ae6cd8b252 [2025-03-04 08:01:51,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 08:01:51,829 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 08:01:51,830 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 08:01:51,830 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 08:01:51,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 08:01:51,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 08:01:51" (1/1) ... [2025-03-04 08:01:51,836 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0bd2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:51, skipping insertion in model container [2025-03-04 08:01:51,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 08:01:51" (1/1) ... [2025-03-04 08:01:51,846 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 08:01:51,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 08:01:51,978 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 08:01:51,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 08:01:52,010 INFO L204 MainTranslator]: Completed translation [2025-03-04 08:01:52,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52 WrapperNode [2025-03-04 08:01:52,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 08:01:52,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 08:01:52,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 08:01:52,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 08:01:52,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (1/1) ... [2025-03-04 08:01:52,024 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (1/1) ... [2025-03-04 08:01:52,043 INFO L138 Inliner]: procedures = 18, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2025-03-04 08:01:52,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 08:01:52,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 08:01:52,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 08:01:52,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 08:01:52,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (1/1) ... [2025-03-04 08:01:52,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (1/1) ... [2025-03-04 08:01:52,055 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (1/1) ... [2025-03-04 08:01:52,068 INFO L175 MemorySlicer]: Split 12 memory accesses to 4 slices as follows [2, 4, 4, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-03-04 08:01:52,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (1/1) ... [2025-03-04 08:01:52,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (1/1) ... [2025-03-04 08:01:52,078 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (1/1) ... [2025-03-04 08:01:52,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (1/1) ... [2025-03-04 08:01:52,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (1/1) ... [2025-03-04 08:01:52,084 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (1/1) ... [2025-03-04 08:01:52,086 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 08:01:52,086 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 08:01:52,086 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 08:01:52,086 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 08:01:52,087 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (1/1) ... [2025-03-04 08:01:52,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 08:01:52,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 08:01:52,121 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) [2025-03-04 08:01:52,124 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 [2025-03-04 08:01:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 08:01:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 08:01:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 08:01:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 08:01:52,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 08:01:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 08:01:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 08:01:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 08:01:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 08:01:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 08:01:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 08:01:52,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 08:01:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 08:01:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 08:01:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 08:01:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 08:01:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 08:01:52,197 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 08:01:52,198 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 08:01:52,422 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2025-03-04 08:01:52,423 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 08:01:52,433 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 08:01:52,433 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 08:01:52,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 08:01:52 BoogieIcfgContainer [2025-03-04 08:01:52,433 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 08:01:52,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 08:01:52,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 08:01:52,439 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 08:01:52,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 08:01:51" (1/3) ... [2025-03-04 08:01:52,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610c0ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 08:01:52, skipping insertion in model container [2025-03-04 08:01:52,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 08:01:52" (2/3) ... [2025-03-04 08:01:52,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@610c0ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 08:01:52, skipping insertion in model container [2025-03-04 08:01:52,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 08:01:52" (3/3) ... [2025-03-04 08:01:52,446 INFO L128 eAbstractionObserver]: Analyzing ICFG sum_array-2.i [2025-03-04 08:01:52,456 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 08:01:52,457 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sum_array-2.i that has 1 procedures, 53 locations, 1 initial locations, 4 loop locations, and 22 error locations. [2025-03-04 08:01:52,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 08:01:52,500 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;@43dad182, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 08:01:52,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2025-03-04 08:01:52,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 30 states have (on average 2.0) internal successors, (60), 52 states have internal predecessors, (60), 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) [2025-03-04 08:01:52,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-04 08:01:52,510 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 08:01:52,510 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-04 08:01:52,510 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2025-03-04 08:01:52,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 08:01:52,515 INFO L85 PathProgramCache]: Analyzing trace with hash 2923454, now seen corresponding path program 1 times [2025-03-04 08:01:52,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 08:01:52,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589745309] [2025-03-04 08:01:52,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 08:01:52,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 08:01:52,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 08:01:52,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 08:01:52,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 08:01:52,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 08:01:52,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 08:01:52,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 08:01:52,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589745309] [2025-03-04 08:01:52,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589745309] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 08:01:52,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 08:01:52,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 08:01:52,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325278763] [2025-03-04 08:01:52,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 08:01:52,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 08:01:52,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 08:01:52,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 08:01:52,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 08:01:52,815 INFO L87 Difference]: Start difference. First operand has 53 states, 30 states have (on average 2.0) internal successors, (60), 52 states have internal predecessors, (60), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-03-04 08:01:52,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 08:01:52,880 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2025-03-04 08:01:52,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 08:01:52,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2025-03-04 08:01:52,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 08:01:52,887 INFO L225 Difference]: With dead ends: 48 [2025-03-04 08:01:52,887 INFO L226 Difference]: Without dead ends: 46 [2025-03-04 08:01:52,888 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 [2025-03-04 08:01:52,890 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 40 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-04 08:01:52,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 31 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-04 08:01:52,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-03-04 08:01:52,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2025-03-04 08:01:52,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.8214285714285714) internal successors, (51), 45 states have internal predecessors, (51), 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) [2025-03-04 08:01:52,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2025-03-04 08:01:52,915 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 4 [2025-03-04 08:01:52,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 08:01:52,915 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2025-03-04 08:01:52,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2025-03-04 08:01:52,915 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2025-03-04 08:01:52,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-04 08:01:52,915 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 08:01:52,915 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-04 08:01:52,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 08:01:52,916 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] === [2025-03-04 08:01:52,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 08:01:52,916 INFO L85 PathProgramCache]: Analyzing trace with hash 2923455, now seen corresponding path program 1 times [2025-03-04 08:01:52,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 08:01:52,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598879317] [2025-03-04 08:01:52,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 08:01:52,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 08:01:52,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 08:01:52,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 08:01:52,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 08:01:52,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 08:01:52,938 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 08:01:52,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 08:01:52,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 08:01:52,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 08:01:52,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 08:01:52,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 08:01:52,962 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 08:01:52,963 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 22 remaining) [2025-03-04 08:01:52,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (20 of 22 remaining) [2025-03-04 08:01:52,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (19 of 22 remaining) [2025-03-04 08:01:52,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 22 remaining) [2025-03-04 08:01:52,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 22 remaining) [2025-03-04 08:01:52,965 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 22 remaining) [2025-03-04 08:01:52,966 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 22 remaining) [2025-03-04 08:01:52,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 22 remaining) [2025-03-04 08:01:52,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 22 remaining) [2025-03-04 08:01:52,967 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 22 remaining) [2025-03-04 08:01:52,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 08:01:52,970 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-04 08:01:52,982 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-04 08:01:52,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 08:01:52 BoogieIcfgContainer [2025-03-04 08:01:52,986 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-04 08:01:52,986 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-04 08:01:52,986 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-04 08:01:52,986 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-04 08:01:52,987 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 08:01:52" (3/4) ... [2025-03-04 08:01:52,988 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-04 08:01:53,017 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 2. [2025-03-04 08:01:53,047 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-04 08:01:53,047 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-04 08:01:53,048 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-04 08:01:53,048 INFO L158 Benchmark]: Toolchain (without parser) took 1219.00ms. Allocated memory is still 167.8MB. Free memory was 125.0MB in the beginning and 51.5MB in the end (delta: 73.5MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2025-03-04 08:01:53,048 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 201.3MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 08:01:53,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 180.76ms. Allocated memory is still 167.8MB. Free memory was 124.3MB in the beginning and 113.6MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 08:01:53,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.21ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 112.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-04 08:01:53,049 INFO L158 Benchmark]: Boogie Preprocessor took 39.92ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 110.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 08:01:53,049 INFO L158 Benchmark]: IcfgBuilder took 347.28ms. Allocated memory is still 167.8MB. Free memory was 110.2MB in the beginning and 90.6MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-04 08:01:53,049 INFO L158 Benchmark]: TraceAbstraction took 550.67ms. Allocated memory is still 167.8MB. Free memory was 89.8MB in the beginning and 57.0MB in the end (delta: 32.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-04 08:01:53,049 INFO L158 Benchmark]: Witness Printer took 61.36ms. Allocated memory is still 167.8MB. Free memory was 57.0MB in the beginning and 51.5MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-04 08:01:53,051 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 201.3MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 180.76ms. Allocated memory is still 167.8MB. Free memory was 124.3MB in the beginning and 113.6MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.21ms. Allocated memory is still 167.8MB. Free memory was 113.6MB in the beginning and 112.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.92ms. Allocated memory is still 167.8MB. Free memory was 112.1MB in the beginning and 110.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 347.28ms. Allocated memory is still 167.8MB. Free memory was 110.2MB in the beginning and 90.6MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 550.67ms. Allocated memory is still 167.8MB. Free memory was 89.8MB in the beginning and 57.0MB in the end (delta: 32.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 61.36ms. Allocated memory is still 167.8MB. Free memory was 57.0MB in the beginning and 51.5MB in the end (delta: 5.5MB). 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: [L27] unsigned int M = __VERIFIER_nondet_uint(); [L28] int A[M], B[M], C[M]; [L29] unsigned int i; [L30] i=0 VAL [A={5:0}, B={3:0}, C={4:0}, M=1073741824, i=0] [L30] COND TRUE i