./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/insertion_sort-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/insertion_sort-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e6909fdbd47ee7cc9ac1cfcb139a86d0e022eb1f9eab8a625d6818fa3999b29d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 16:40:07,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 16:40:07,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-24 16:40:07,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 16:40:07,557 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 16:40:07,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 16:40:07,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 16:40:07,588 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 16:40:07,589 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 16:40:07,589 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 16:40:07,589 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 16:40:07,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 16:40:07,590 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 16:40:07,591 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 16:40:07,591 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 16:40:07,592 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 16:40:07,592 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 16:40:07,596 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 16:40:07,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 16:40:07,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 16:40:07,597 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-24 16:40:07,598 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-24 16:40:07,598 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-24 16:40:07,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 16:40:07,599 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-24 16:40:07,599 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 16:40:07,599 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 16:40:07,599 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 16:40:07,600 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 16:40:07,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 16:40:07,600 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 16:40:07,601 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 16:40:07,601 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 16:40:07,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 16:40:07,606 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 16:40:07,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 16:40:07,606 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 16:40:07,606 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 16:40:07,607 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 16:40:07,607 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 16:40:07,607 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 16:40:07,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 16:40:07,610 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6909fdbd47ee7cc9ac1cfcb139a86d0e022eb1f9eab8a625d6818fa3999b29d [2024-10-24 16:40:07,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 16:40:07,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 16:40:07,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 16:40:07,887 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 16:40:07,887 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 16:40:07,888 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/insertion_sort-2.c [2024-10-24 16:40:09,340 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 16:40:09,504 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 16:40:09,504 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/insertion_sort-2.c [2024-10-24 16:40:09,510 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3afafc0b/201e22fc61ba43ecba8ba1e0e8ec102e/FLAG19b2ebb90 [2024-10-24 16:40:09,897 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3afafc0b/201e22fc61ba43ecba8ba1e0e8ec102e [2024-10-24 16:40:09,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 16:40:09,900 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 16:40:09,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 16:40:09,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 16:40:09,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 16:40:09,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:40:09" (1/1) ... [2024-10-24 16:40:09,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae85695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:09, skipping insertion in model container [2024-10-24 16:40:09,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:40:09" (1/1) ... [2024-10-24 16:40:09,919 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 16:40:10,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 16:40:10,087 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 16:40:10,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 16:40:10,117 INFO L204 MainTranslator]: Completed translation [2024-10-24 16:40:10,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10 WrapperNode [2024-10-24 16:40:10,118 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 16:40:10,119 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 16:40:10,119 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 16:40:10,119 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 16:40:10,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (1/1) ... [2024-10-24 16:40:10,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (1/1) ... [2024-10-24 16:40:10,149 INFO L138 Inliner]: procedures = 15, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2024-10-24 16:40:10,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 16:40:10,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 16:40:10,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 16:40:10,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 16:40:10,160 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (1/1) ... [2024-10-24 16:40:10,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (1/1) ... [2024-10-24 16:40:10,164 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (1/1) ... [2024-10-24 16:40:10,175 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]. [2024-10-24 16:40:10,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (1/1) ... [2024-10-24 16:40:10,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (1/1) ... [2024-10-24 16:40:10,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (1/1) ... [2024-10-24 16:40:10,183 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (1/1) ... [2024-10-24 16:40:10,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (1/1) ... [2024-10-24 16:40:10,185 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (1/1) ... [2024-10-24 16:40:10,187 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 16:40:10,188 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 16:40:10,188 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 16:40:10,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 16:40:10,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (1/1) ... [2024-10-24 16:40:10,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 16:40:10,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 16:40:10,225 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) [2024-10-24 16:40:10,228 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 [2024-10-24 16:40:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 16:40:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 16:40:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 16:40:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 16:40:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 16:40:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 16:40:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 16:40:10,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 16:40:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 16:40:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 16:40:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 16:40:10,348 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 16:40:10,350 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 16:40:10,636 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-10-24 16:40:10,637 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 16:40:10,676 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 16:40:10,677 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-24 16:40:10,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:40:10 BoogieIcfgContainer [2024-10-24 16:40:10,678 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 16:40:10,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 16:40:10,680 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 16:40:10,686 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 16:40:10,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:40:09" (1/3) ... [2024-10-24 16:40:10,687 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45700b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:40:10, skipping insertion in model container [2024-10-24 16:40:10,687 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:40:10" (2/3) ... [2024-10-24 16:40:10,688 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45700b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:40:10, skipping insertion in model container [2024-10-24 16:40:10,688 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:40:10" (3/3) ... [2024-10-24 16:40:10,689 INFO L112 eAbstractionObserver]: Analyzing ICFG insertion_sort-2.c [2024-10-24 16:40:10,704 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 16:40:10,704 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-10-24 16:40:10,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 16:40:10,747 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;@63fe3e39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 16:40:10,748 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-10-24 16:40:10,751 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 22 states have (on average 2.272727272727273) internal successors, (50), 40 states have internal predecessors, (50), 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) [2024-10-24 16:40:10,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-24 16:40:10,755 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 16:40:10,755 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-24 16:40:10,756 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)] === [2024-10-24 16:40:10,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 16:40:10,761 INFO L85 PathProgramCache]: Analyzing trace with hash 143511, now seen corresponding path program 1 times [2024-10-24 16:40:10,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 16:40:10,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843995278] [2024-10-24 16:40:10,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 16:40:10,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 16:40:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 16:40:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 16:40:11,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 16:40:11,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843995278] [2024-10-24 16:40:11,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843995278] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 16:40:11,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 16:40:11,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 16:40:11,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101068379] [2024-10-24 16:40:11,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 16:40:11,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 16:40:11,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 16:40:11,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 16:40:11,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 16:40:11,053 INFO L87 Difference]: Start difference. First operand has 41 states, 22 states have (on average 2.272727272727273) internal successors, (50), 40 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 16:40:11,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 16:40:11,130 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2024-10-24 16:40:11,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 16:40:11,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-24 16:40:11,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 16:40:11,140 INFO L225 Difference]: With dead ends: 33 [2024-10-24 16:40:11,140 INFO L226 Difference]: Without dead ends: 32 [2024-10-24 16:40:11,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 16:40:11,147 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 16:40:11,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 16 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 16:40:11,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-10-24 16:40:11,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-10-24 16:40:11,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 31 states have internal predecessors, (36), 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) [2024-10-24 16:40:11,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2024-10-24 16:40:11,182 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 3 [2024-10-24 16:40:11,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 16:40:11,182 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2024-10-24 16:40:11,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 16:40:11,183 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2024-10-24 16:40:11,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-24 16:40:11,183 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 16:40:11,183 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-24 16:40:11,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 16:40:11,184 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)] === [2024-10-24 16:40:11,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 16:40:11,185 INFO L85 PathProgramCache]: Analyzing trace with hash 143512, now seen corresponding path program 1 times [2024-10-24 16:40:11,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 16:40:11,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687094181] [2024-10-24 16:40:11,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 16:40:11,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 16:40:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 16:40:11,219 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 16:40:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 16:40:11,264 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 16:40:11,265 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-24 16:40:11,266 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2024-10-24 16:40:11,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2024-10-24 16:40:11,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2024-10-24 16:40:11,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2024-10-24 16:40:11,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2024-10-24 16:40:11,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2024-10-24 16:40:11,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2024-10-24 16:40:11,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2024-10-24 16:40:11,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 18 remaining) [2024-10-24 16:40:11,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 18 remaining) [2024-10-24 16:40:11,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2024-10-24 16:40:11,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2024-10-24 16:40:11,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2024-10-24 16:40:11,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2024-10-24 16:40:11,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2024-10-24 16:40:11,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2024-10-24 16:40:11,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (1 of 18 remaining) [2024-10-24 16:40:11,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK (0 of 18 remaining) [2024-10-24 16:40:11,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 16:40:11,275 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-24 16:40:11,287 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 16:40:11,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 04:40:11 BoogieIcfgContainer [2024-10-24 16:40:11,291 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 16:40:11,292 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 16:40:11,292 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 16:40:11,292 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 16:40:11,292 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:40:10" (3/4) ... [2024-10-24 16:40:11,294 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-24 16:40:11,331 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 16:40:11,331 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 16:40:11,332 INFO L158 Benchmark]: Toolchain (without parser) took 1431.85ms. Allocated memory was 167.8MB in the beginning and 234.9MB in the end (delta: 67.1MB). Free memory was 111.8MB in the beginning and 183.7MB in the end (delta: -71.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 16:40:11,332 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 16:40:11,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.20ms. Allocated memory is still 167.8MB. Free memory was 111.8MB in the beginning and 99.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-24 16:40:11,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.24ms. Allocated memory is still 167.8MB. Free memory was 99.2MB in the beginning and 97.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 16:40:11,333 INFO L158 Benchmark]: Boogie Preprocessor took 36.49ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 95.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 16:40:11,334 INFO L158 Benchmark]: RCFGBuilder took 489.81ms. Allocated memory is still 167.8MB. Free memory was 95.5MB in the beginning and 77.1MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-24 16:40:11,334 INFO L158 Benchmark]: TraceAbstraction took 611.08ms. Allocated memory was 167.8MB in the beginning and 234.9MB in the end (delta: 67.1MB). Free memory was 76.2MB in the beginning and 185.8MB in the end (delta: -109.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 16:40:11,337 INFO L158 Benchmark]: Witness Printer took 39.76ms. Allocated memory is still 234.9MB. Free memory was 185.8MB in the beginning and 183.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 16:40:11,338 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 167.8MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.20ms. Allocated memory is still 167.8MB. Free memory was 111.8MB in the beginning and 99.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.24ms. Allocated memory is still 167.8MB. Free memory was 99.2MB in the beginning and 97.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.49ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 95.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 489.81ms. Allocated memory is still 167.8MB. Free memory was 95.5MB in the beginning and 77.1MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 611.08ms. Allocated memory was 167.8MB in the beginning and 234.9MB in the end (delta: 67.1MB). Free memory was 76.2MB in the beginning and 185.8MB in the end (delta: -109.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.76ms. Allocated memory is still 234.9MB. Free memory was 185.8MB in the beginning and 183.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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