./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/loops/sum_array-1.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/sum_array-1.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 f0ce6e358e97991ebbe821b374467d4ac3ee0da45122333d4b5212eb8135ac7d --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 22:46:16,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 22:46:16,868 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-01-09 22:46:16,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 22:46:16,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 22:46:16,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 22:46:16,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 22:46:16,889 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 22:46:16,889 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 22:46:16,889 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 22:46:16,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 22:46:16,889 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 22:46:16,889 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 22:46:16,889 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 22:46:16,890 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 22:46:16,890 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:46:16,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:46:16,891 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:46:16,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 22:46:16,891 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 22:46:16,891 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 -> f0ce6e358e97991ebbe821b374467d4ac3ee0da45122333d4b5212eb8135ac7d [2025-01-09 22:46:17,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 22:46:17,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 22:46:17,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 22:46:17,107 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 22:46:17,108 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 22:46:17,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum_array-1.c [2025-01-09 22:46:18,240 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/346dce478/5737dd1c215c4fed9b70a71c30c24394/FLAG349a6c2fd [2025-01-09 22:46:18,458 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 22:46:18,464 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/loops/sum_array-1.c [2025-01-09 22:46:18,476 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/346dce478/5737dd1c215c4fed9b70a71c30c24394/FLAG349a6c2fd [2025-01-09 22:46:18,801 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/346dce478/5737dd1c215c4fed9b70a71c30c24394 [2025-01-09 22:46:18,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 22:46:18,804 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 22:46:18,805 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 22:46:18,805 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 22:46:18,808 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 22:46:18,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:46:18" (1/1) ... [2025-01-09 22:46:18,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc81a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:18, skipping insertion in model container [2025-01-09 22:46:18,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 10:46:18" (1/1) ... [2025-01-09 22:46:18,828 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 22:46:19,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:46:19,026 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 22:46:19,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 22:46:19,052 INFO L204 MainTranslator]: Completed translation [2025-01-09 22:46:19,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19 WrapperNode [2025-01-09 22:46:19,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 22:46:19,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 22:46:19,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 22:46:19,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 22:46:19,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,063 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,077 INFO L138 Inliner]: procedures = 15, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2025-01-09 22:46:19,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 22:46:19,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 22:46:19,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 22:46:19,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 22:46:19,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,085 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,098 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 3, 2]. 30 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]. [2025-01-09 22:46:19,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,103 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,112 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 22:46:19,119 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 22:46:19,119 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 22:46:19,119 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 22:46:19,119 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (1/1) ... [2025-01-09 22:46:19,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 22:46:19,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 22:46:19,157 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 22:46:19,164 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 22:46:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 22:46:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 22:46:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 22:46:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 22:46:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 22:46:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 22:46:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 22:46:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 22:46:19,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 22:46:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 22:46:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 22:46:19,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 22:46:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 22:46:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 22:46:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 22:46:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 22:46:19,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 22:46:19,235 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 22:46:19,236 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 22:46:19,409 INFO L? ?]: Removed 48 outVars from TransFormulas that were not future-live. [2025-01-09 22:46:19,410 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 22:46:19,416 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 22:46:19,416 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 22:46:19,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:46:19 BoogieIcfgContainer [2025-01-09 22:46:19,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 22:46:19,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 22:46:19,418 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 22:46:19,424 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 22:46:19,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 10:46:18" (1/3) ... [2025-01-09 22:46:19,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344dddf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:46:19, skipping insertion in model container [2025-01-09 22:46:19,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 10:46:19" (2/3) ... [2025-01-09 22:46:19,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344dddf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 10:46:19, skipping insertion in model container [2025-01-09 22:46:19,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:46:19" (3/3) ... [2025-01-09 22:46:19,426 INFO L128 eAbstractionObserver]: Analyzing ICFG sum_array-1.c [2025-01-09 22:46:19,444 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 22:46:19,446 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sum_array-1.c that has 1 procedures, 44 locations, 1 initial locations, 4 loop locations, and 18 error locations. [2025-01-09 22:46:19,478 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 22:46:19,488 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;@6ae3b20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 22:46:19,489 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-01-09 22:46:19,491 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 25 states have (on average 1.92) internal successors, (48), 43 states have internal predecessors, (48), 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 22:46:19,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 22:46:19,496 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:46:19,497 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 22:46:19,497 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 22:46:19,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:46:19,503 INFO L85 PathProgramCache]: Analyzing trace with hash 925637, now seen corresponding path program 1 times [2025-01-09 22:46:19,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 22:46:19,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152931223] [2025-01-09 22:46:19,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:46:19,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 22:46:19,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 22:46:19,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 22:46:19,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:46:19,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 22:46:19,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 22:46:19,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 22:46:19,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152931223] [2025-01-09 22:46:19,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152931223] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 22:46:19,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 22:46:19,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 22:46:19,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989222219] [2025-01-09 22:46:19,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 22:46:19,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 22:46:19,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 22:46:19,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 22:46:19,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 22:46:19,747 INFO L87 Difference]: Start difference. First operand has 44 states, 25 states have (on average 1.92) internal successors, (48), 43 states have internal predecessors, (48), 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 22:46:19,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 22:46:19,805 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2025-01-09 22:46:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 22:46:19,807 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 22:46:19,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 22:46:19,811 INFO L225 Difference]: With dead ends: 40 [2025-01-09 22:46:19,811 INFO L226 Difference]: Without dead ends: 38 [2025-01-09 22:46:19,812 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 22:46:19,814 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 33 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 22:46:19,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 27 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 22:46:19,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2025-01-09 22:46:19,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2025-01-09 22:46:19,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 37 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 22:46:19,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2025-01-09 22:46:19,832 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 4 [2025-01-09 22:46:19,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 22:46:19,832 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2025-01-09 22:46:19,832 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 22:46:19,833 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2025-01-09 22:46:19,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 22:46:19,833 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 22:46:19,833 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 22:46:19,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 22:46:19,833 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 22:46:19,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 22:46:19,834 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2025-01-09 22:46:19,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 22:46:19,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664809239] [2025-01-09 22:46:19,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 22:46:19,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 22:46:19,840 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 22:46:19,853 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 22:46:19,853 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:46:19,853 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 22:46:19,853 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 22:46:19,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 22:46:19,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 22:46:19,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 22:46:19,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 22:46:19,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 22:46:19,875 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 22:46:19,876 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2025-01-09 22:46:19,877 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2025-01-09 22:46:19,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2025-01-09 22:46:19,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2025-01-09 22:46:19,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2025-01-09 22:46:19,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2025-01-09 22:46:19,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2025-01-09 22:46:19,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2025-01-09 22:46:19,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 18 remaining) [2025-01-09 22:46:19,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 18 remaining) [2025-01-09 22:46:19,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2025-01-09 22:46:19,878 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2025-01-09 22:46:19,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2025-01-09 22:46:19,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2025-01-09 22:46:19,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2025-01-09 22:46:19,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2025-01-09 22:46:19,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (1 of 18 remaining) [2025-01-09 22:46:19,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK (0 of 18 remaining) [2025-01-09 22:46:19,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 22:46:19,881 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-09 22:46:19,891 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 22:46:19,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 10:46:19 BoogieIcfgContainer [2025-01-09 22:46:19,893 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 22:46:19,893 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 22:46:19,893 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 22:46:19,893 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 22:46:19,894 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 10:46:19" (3/4) ... [2025-01-09 22:46:19,894 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-09 22:46:19,916 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 2. [2025-01-09 22:46:19,948 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 22:46:19,949 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 22:46:19,949 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 22:46:19,950 INFO L158 Benchmark]: Toolchain (without parser) took 1145.67ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 39.0MB in the end (delta: 69.7MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-01-09 22:46:19,950 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 128.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:46:19,950 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.60ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 97.5MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 22:46:19,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.67ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 96.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:46:19,951 INFO L158 Benchmark]: Boogie Preprocessor took 36.16ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 94.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:46:19,951 INFO L158 Benchmark]: RCFGBuilder took 298.07ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 78.2MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 22:46:19,951 INFO L158 Benchmark]: TraceAbstraction took 475.09ms. Allocated memory is still 142.6MB. Free memory was 77.3MB in the beginning and 43.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-09 22:46:19,951 INFO L158 Benchmark]: Witness Printer took 55.70ms. Allocated memory is still 142.6MB. Free memory was 43.7MB in the beginning and 39.0MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 22:46:19,953 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 128.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.60ms. Allocated memory is still 142.6MB. Free memory was 108.6MB in the beginning and 97.5MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.67ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 96.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.16ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 94.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 298.07ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 78.2MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 475.09ms. Allocated memory is still 142.6MB. Free memory was 77.3MB in the beginning and 43.7MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 55.70ms. Allocated memory is still 142.6MB. Free memory was 43.7MB in the beginning and 39.0MB in the end (delta: 4.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L16] unsigned int M = __VERIFIER_nondet_uint(); [L17] int A[M], B[M], C[M]; [L18] unsigned int i; [L20] i=0 VAL [A={5:0}, B={4:0}, C={6:0}, M=1073741824, i=0] [L20] COND TRUE i