/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/loops/insertion_sort-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 05:50:25,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 05:50:25,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 05:50:25,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 05:50:25,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 05:50:25,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 05:50:25,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 05:50:25,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 05:50:25,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 05:50:25,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 05:50:25,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 05:50:25,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 05:50:25,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 05:50:25,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 05:50:25,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 05:50:25,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 05:50:25,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 05:50:25,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 05:50:25,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 05:50:25,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 05:50:25,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 05:50:25,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 05:50:25,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 05:50:25,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 05:50:25,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 05:50:25,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 05:50:25,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 05:50:25,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 05:50:25,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 05:50:25,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 05:50:25,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 05:50:25,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 05:50:25,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 05:50:25,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 05:50:25,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 05:50:25,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 05:50:25,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-10-16 05:50:25,921 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 05:50:25,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 05:50:25,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 05:50:25,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 05:50:25,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 05:50:25,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 05:50:25,924 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 05:50:25,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 05:50:25,924 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 05:50:25,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 05:50:25,924 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 05:50:25,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 05:50:25,925 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 05:50:25,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 05:50:25,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 05:50:25,925 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-16 05:50:25,925 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-16 05:50:25,926 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-16 05:50:25,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 05:50:25,926 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-16 05:50:25,926 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 05:50:25,926 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 05:50:25,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 05:50:25,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 05:50:25,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 05:50:25,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 05:50:25,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 05:50:25,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 05:50:25,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 05:50:25,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 05:50:25,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 05:50:26,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 05:50:26,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 05:50:26,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 05:50:26,330 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 05:50:26,330 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 05:50:26,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/insertion_sort-2.c [2022-10-16 05:50:26,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9fd257b/84f91359b7d342a0bb276b67cd3f10b9/FLAG49e8e3131 [2022-10-16 05:50:27,054 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 05:50:27,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/insertion_sort-2.c [2022-10-16 05:50:27,062 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9fd257b/84f91359b7d342a0bb276b67cd3f10b9/FLAG49e8e3131 [2022-10-16 05:50:27,429 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fd9fd257b/84f91359b7d342a0bb276b67cd3f10b9 [2022-10-16 05:50:27,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 05:50:27,438 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 05:50:27,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 05:50:27,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 05:50:27,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 05:50:27,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16514f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27, skipping insertion in model container [2022-10-16 05:50:27,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 05:50:27,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 05:50:27,626 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/insertion_sort-2.c[328,341] [2022-10-16 05:50:27,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 05:50:27,660 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 05:50:27,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/insertion_sort-2.c[328,341] [2022-10-16 05:50:27,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 05:50:27,699 INFO L208 MainTranslator]: Completed translation [2022-10-16 05:50:27,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27 WrapperNode [2022-10-16 05:50:27,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 05:50:27,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 05:50:27,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 05:50:27,702 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 05:50:27,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,747 INFO L138 Inliner]: procedures = 15, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2022-10-16 05:50:27,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 05:50:27,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 05:50:27,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 05:50:27,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 05:50:27,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,777 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 05:50:27,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 05:50:27,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 05:50:27,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 05:50:27,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27" (1/1) ... [2022-10-16 05:50:27,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 05:50:27,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 05:50:27,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 05:50:27,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 05:50:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 05:50:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 05:50:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 05:50:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 05:50:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 05:50:27,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 05:50:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 05:50:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 05:50:27,980 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 05:50:27,983 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 05:50:28,277 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 05:50:28,300 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 05:50:28,301 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 05:50:28,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:50:28 BoogieIcfgContainer [2022-10-16 05:50:28,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 05:50:28,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 05:50:28,314 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 05:50:28,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 05:50:28,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:50:27" (1/3) ... [2022-10-16 05:50:28,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e52183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:50:28, skipping insertion in model container [2022-10-16 05:50:28,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:50:27" (2/3) ... [2022-10-16 05:50:28,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e52183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:50:28, skipping insertion in model container [2022-10-16 05:50:28,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:50:28" (3/3) ... [2022-10-16 05:50:28,332 INFO L112 eAbstractionObserver]: Analyzing ICFG insertion_sort-2.c [2022-10-16 05:50:28,410 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 05:50:28,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-10-16 05:50:28,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 05:50:28,534 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@386a25e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 05:50:28,534 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-10-16 05:50:28,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 32 states have (on average 1.875) internal successors, (60), 50 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 05:50:28,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 05:50:28,568 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 05:50:28,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 05:50:28,569 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-10-16 05:50:28,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 05:50:28,579 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-10-16 05:50:28,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 05:50:28,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024520336] [2022-10-16 05:50:28,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 05:50:28,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 05:50:28,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 05:50:28,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 05:50:28,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 05:50:28,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024520336] [2022-10-16 05:50:28,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024520336] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 05:50:28,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 05:50:28,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 05:50:28,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229433669] [2022-10-16 05:50:28,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 05:50:28,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 05:50:28,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 05:50:29,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 05:50:29,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 05:50:29,035 INFO L87 Difference]: Start difference. First operand has 51 states, 32 states have (on average 1.875) internal successors, (60), 50 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 05:50:29,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 05:50:29,106 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2022-10-16 05:50:29,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 05:50:29,109 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 [2022-10-16 05:50:29,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 05:50:29,119 INFO L225 Difference]: With dead ends: 43 [2022-10-16 05:50:29,119 INFO L226 Difference]: Without dead ends: 41 [2022-10-16 05:50:29,121 INFO L412 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 [2022-10-16 05:50:29,126 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 40 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 05:50:29,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 31 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 05:50:29,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-10-16 05:50:29,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-10-16 05:50:29,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 40 states have internal predecessors, (45), 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) [2022-10-16 05:50:29,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2022-10-16 05:50:29,166 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 4 [2022-10-16 05:50:29,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 05:50:29,167 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2022-10-16 05:50:29,167 INFO L496 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) [2022-10-16 05:50:29,167 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2022-10-16 05:50:29,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-16 05:50:29,168 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 05:50:29,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-16 05:50:29,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 05:50:29,169 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2022-10-16 05:50:29,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 05:50:29,169 INFO L85 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2022-10-16 05:50:29,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 05:50:29,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116902421] [2022-10-16 05:50:29,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 05:50:29,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 05:50:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 05:50:29,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 05:50:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 05:50:29,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 05:50:29,244 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 05:50:29,247 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2022-10-16 05:50:29,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2022-10-16 05:50:29,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2022-10-16 05:50:29,250 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2022-10-16 05:50:29,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2022-10-16 05:50:29,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2022-10-16 05:50:29,251 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2022-10-16 05:50:29,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2022-10-16 05:50:29,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 18 remaining) [2022-10-16 05:50:29,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 18 remaining) [2022-10-16 05:50:29,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2022-10-16 05:50:29,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2022-10-16 05:50:29,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2022-10-16 05:50:29,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2022-10-16 05:50:29,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2022-10-16 05:50:29,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2022-10-16 05:50:29,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (1 of 18 remaining) [2022-10-16 05:50:29,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK (0 of 18 remaining) [2022-10-16 05:50:29,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 05:50:29,260 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-16 05:50:29,266 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 05:50:29,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:50:29 BoogieIcfgContainer [2022-10-16 05:50:29,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 05:50:29,289 INFO L158 Benchmark]: Toolchain (without parser) took 1855.46ms. Allocated memory is still 182.5MB. Free memory was 156.9MB in the beginning and 134.3MB in the end (delta: 22.7MB). Peak memory consumption was 22.5MB. Max. memory is 8.0GB. [2022-10-16 05:50:29,290 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 182.5MB. Free memory was 152.6MB in the beginning and 152.5MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 05:50:29,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.13ms. Allocated memory is still 182.5MB. Free memory was 156.7MB in the beginning and 146.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-16 05:50:29,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.59ms. Allocated memory is still 182.5MB. Free memory was 146.7MB in the beginning and 145.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 05:50:29,292 INFO L158 Benchmark]: Boogie Preprocessor took 33.21ms. Allocated memory is still 182.5MB. Free memory was 145.1MB in the beginning and 143.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 05:50:29,293 INFO L158 Benchmark]: RCFGBuilder took 524.89ms. Allocated memory is still 182.5MB. Free memory was 143.6MB in the beginning and 129.8MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 05:50:29,293 INFO L158 Benchmark]: TraceAbstraction took 974.47ms. Allocated memory is still 182.5MB. Free memory was 129.0MB in the beginning and 134.3MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 05:50:29,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 182.5MB. Free memory was 152.6MB in the beginning and 152.5MB in the end (delta: 78.1kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 261.13ms. Allocated memory is still 182.5MB. Free memory was 156.7MB in the beginning and 146.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 46.59ms. Allocated memory is still 182.5MB. Free memory was 146.7MB in the beginning and 145.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.21ms. Allocated memory is still 182.5MB. Free memory was 145.1MB in the beginning and 143.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 524.89ms. Allocated memory is still 182.5MB. Free memory was 143.6MB in the beginning and 129.8MB in the end (delta: 13.8MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 974.47ms. Allocated memory is still 182.5MB. Free memory was 129.0MB in the beginning and 134.3MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 8.0GB. * 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 [j=0, SIZE=4294967295, v={4:0}] [L17] COND TRUE j