./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/loops/insertion_sort-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 551b0097 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/loops/insertion_sort-2.c -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 e6909fdbd47ee7cc9ac1cfcb139a86d0e022eb1f9eab8a625d6818fa3999b29d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 22:46:03,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 22:46:03,331 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-09 22:46:03,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 22:46:03,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 22:46:03,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 22:46:03,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 22:46:03,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 22:46:03,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 22:46:03,349 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 22:46:03,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 22:46:03,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 22:46:03,349 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 22:46:03,349 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 22:46:03,349 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 22:46:03,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 22:46:03,349 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 22:46:03,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 22:46:03,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 22:46:03,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 22:46:03,350 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 22:46:03,350 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 22:46:03,350 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-09 22:46:03,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 22:46:03,350 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 22:46:03,350 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 22:46:03,350 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 22:46:03,350 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 22:46:03,350 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 22:46:03,350 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:46:03,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:46:03,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 22:46:03,351 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 22:46:03,351 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 -> e6909fdbd47ee7cc9ac1cfcb139a86d0e022eb1f9eab8a625d6818fa3999b29d [2025-01-09 22:46:03,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 22:46:03,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 22:46:03,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 22:46:03,581 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 22:46:03,582 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 22:46:03,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/insertion_sort-2.c [2025-01-09 22:46:04,723 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/13edc2c4e/2b4d61fe11e8431d9190667856ee3f86/FLAGcb55bb5cd [2025-01-09 22:46:04,981 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 22:46:04,981 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loops/insertion_sort-2.c [2025-01-09 22:46:04,987 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/13edc2c4e/2b4d61fe11e8431d9190667856ee3f86/FLAGcb55bb5cd [2025-01-09 22:46:05,292 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/13edc2c4e/2b4d61fe11e8431d9190667856ee3f86 [2025-01-09 22:46:05,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 22:46:05,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 22:46:05,301 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 22:46:05,301 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 22:46:05,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 22:46:05,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,310 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e396b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05, skipping insertion in model container [2025-01-09 22:46:05,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,332 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:46:05,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:46:05,445 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 22:46:05,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:46:05,471 INFO L204 MainTranslator]: Completed translation [2025-01-09 22:46:05,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05 WrapperNode [2025-01-09 22:46:05,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 22:46:05,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 22:46:05,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 22:46:05,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 22:46:05,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,493 INFO L138 Inliner]: procedures = 15, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2025-01-09 22:46:05,494 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 22:46:05,494 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 22:46:05,494 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 22:46:05,494 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 22:46:05,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,501 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,511 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2025-01-09 22:46:05,512 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,515 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,517 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,518 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,519 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 22:46:05,520 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 22:46:05,520 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 22:46:05,520 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 22:46:05,520 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (1/1) ... [2025-01-09 22:46:05,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:46:05,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:46:05,545 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) [2025-01-09 22:46:05,549 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 [2025-01-09 22:46:05,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 22:46:05,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 22:46:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 22:46:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 22:46:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 22:46:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 22:46:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 22:46:05,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 22:46:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 22:46:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 22:46:05,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 22:46:05,625 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 22:46:05,627 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 22:46:05,754 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2025-01-09 22:46:05,755 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 22:46:05,761 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 22:46:05,761 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 22:46:05,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:46:05 BoogieIcfgContainer [2025-01-09 22:46:05,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 22:46:05,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 22:46:05,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 22:46:05,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 22:46:05,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 10:46:05" (1/3) ... [2025-01-09 22:46:05,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452cee45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:46:05, skipping insertion in model container [2025-01-09 22:46:05,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:05" (2/3) ... [2025-01-09 22:46:05,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@452cee45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:46:05, skipping insertion in model container [2025-01-09 22:46:05,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:46:05" (3/3) ... [2025-01-09 22:46:05,768 INFO L128 eAbstractionObserver]: Analyzing ICFG insertion_sort-2.c [2025-01-09 22:46:05,777 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 22:46:05,778 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG insertion_sort-2.c that has 1 procedures, 48 locations, 1 initial locations, 4 loop locations, and 18 error locations. [2025-01-09 22:46:05,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 22:46:05,813 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;@512860c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 22:46:05,813 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-01-09 22:46:05,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 29 states have (on average 1.8620689655172413) internal successors, (54), 47 states have internal predecessors, (54), 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) [2025-01-09 22:46:05,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 22:46:05,819 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:46:05,819 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 22:46:05,820 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2025-01-09 22:46:05,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:46:05,824 INFO L85 PathProgramCache]: Analyzing trace with hash 925637, now seen corresponding path program 1 times [2025-01-09 22:46:05,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 22:46:05,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551404470] [2025-01-09 22:46:05,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:46:05,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 22:46:05,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 22:46:05,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 22:46:05,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:46:05,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:46:06,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:46:06,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 22:46:06,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551404470] [2025-01-09 22:46:06,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551404470] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:46:06,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:46:06,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 22:46:06,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357293684] [2025-01-09 22:46:06,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:46:06,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 22:46:06,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 22:46:06,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 22:46:06,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:46:06,045 INFO L87 Difference]: Start difference. First operand has 48 states, 29 states have (on average 1.8620689655172413) internal successors, (54), 47 states have internal predecessors, (54), 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) [2025-01-09 22:46:06,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:46:06,120 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2025-01-09 22:46:06,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 22:46:06,122 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 [2025-01-09 22:46:06,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:46:06,126 INFO L225 Difference]: With dead ends: 39 [2025-01-09 22:46:06,126 INFO L226 Difference]: Without dead ends: 37 [2025-01-09 22:46:06,127 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 [2025-01-09 22:46:06,129 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 28 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 22:46:06,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 27 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 22:46:06,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-01-09 22:46:06,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2025-01-09 22:46:06,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 36 states have internal predecessors, (41), 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) [2025-01-09 22:46:06,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2025-01-09 22:46:06,151 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 4 [2025-01-09 22:46:06,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:46:06,151 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2025-01-09 22:46:06,152 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) [2025-01-09 22:46:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2025-01-09 22:46:06,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 22:46:06,152 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:46:06,152 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 22:46:06,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 22:46:06,152 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2025-01-09 22:46:06,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:46:06,153 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2025-01-09 22:46:06,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 22:46:06,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126365948] [2025-01-09 22:46:06,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:46:06,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 22:46:06,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 22:46:06,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 22:46:06,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:46:06,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 22:46:06,168 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 22:46:06,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 22:46:06,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 22:46:06,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:46:06,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 22:46:06,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 22:46:06,185 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 22:46:06,186 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2025-01-09 22:46:06,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2025-01-09 22:46:06,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2025-01-09 22:46:06,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2025-01-09 22:46:06,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2025-01-09 22:46:06,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2025-01-09 22:46:06,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2025-01-09 22:46:06,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2025-01-09 22:46:06,187 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 18 remaining) [2025-01-09 22:46:06,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 18 remaining) [2025-01-09 22:46:06,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2025-01-09 22:46:06,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2025-01-09 22:46:06,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2025-01-09 22:46:06,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2025-01-09 22:46:06,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2025-01-09 22:46:06,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2025-01-09 22:46:06,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (1 of 18 remaining) [2025-01-09 22:46:06,188 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK (0 of 18 remaining) [2025-01-09 22:46:06,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 22:46:06,190 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 22:46:06,198 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 22:46:06,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 10:46:06 BoogieIcfgContainer [2025-01-09 22:46:06,200 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 22:46:06,201 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 22:46:06,201 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 22:46:06,201 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 22:46:06,201 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:46:05" (3/4) ... [2025-01-09 22:46:06,202 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 22:46:06,223 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 2. [2025-01-09 22:46:06,247 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 22:46:06,247 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 22:46:06,247 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 22:46:06,248 INFO L158 Benchmark]: Toolchain (without parser) took 947.92ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 47.0MB in the end (delta: 59.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-01-09 22:46:06,248 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:46:06,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.65ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 95.4MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 22:46:06,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.01ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 93.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:46:06,249 INFO L158 Benchmark]: Boogie Preprocessor took 24.72ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 92.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 22:46:06,249 INFO L158 Benchmark]: RCFGBuilder took 241.59ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 77.7MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 22:46:06,249 INFO L158 Benchmark]: TraceAbstraction took 437.90ms. Allocated memory is still 142.6MB. Free memory was 77.2MB in the beginning and 52.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 22:46:06,250 INFO L158 Benchmark]: Witness Printer took 46.72ms. Allocated memory is still 142.6MB. Free memory was 51.0MB in the beginning and 47.0MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:46:06,251 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.65ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 95.4MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.01ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 93.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.72ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 92.0MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 241.59ms. Allocated memory is still 142.6MB. Free memory was 92.0MB in the beginning and 77.7MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 437.90ms. Allocated memory is still 142.6MB. Free memory was 77.2MB in the beginning and 52.0MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 46.72ms. Allocated memory is still 142.6MB. Free memory was 51.0MB in the beginning and 47.0MB in the end (delta: 4.0MB). 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: [L14] unsigned int SIZE=__VERIFIER_nondet_uint(); [L15] int i, j, k, key; [L16] int v[SIZE]; [L17] j=0 VAL [SIZE=1073741824, j=0, v={4:0}] [L17] COND TRUE j