/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/sum_array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 18:19:31,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 18:19:31,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 18:19:32,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 18:19:32,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 18:19:32,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 18:19:32,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 18:19:32,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 18:19:32,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 18:19:32,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 18:19:32,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 18:19:32,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 18:19:32,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 18:19:32,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 18:19:32,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 18:19:32,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 18:19:32,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 18:19:32,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 18:19:32,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 18:19:32,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 18:19:32,116 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 18:19:32,118 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 18:19:32,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 18:19:32,120 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 18:19:32,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 18:19:32,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 18:19:32,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 18:19:32,131 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 18:19:32,132 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 18:19:32,133 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 18:19:32,133 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 18:19:32,134 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 18:19:32,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 18:19:32,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 18:19:32,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 18:19:32,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 18:19:32,139 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 [2022-10-15 18:19:32,170 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 18:19:32,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 18:19:32,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 18:19:32,171 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 18:19:32,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 18:19:32,172 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 18:19:32,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 18:19:32,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 18:19:32,173 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 18:19:32,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 18:19:32,174 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 18:19:32,174 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 18:19:32,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 18:19:32,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 18:19:32,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 18:19:32,175 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 18:19:32,175 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 18:19:32,176 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 18:19:32,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 18:19:32,176 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 18:19:32,176 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 18:19:32,176 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 18:19:32,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 18:19:32,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 18:19:32,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 18:19:32,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 18:19:32,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 18:19:32,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 18:19:32,178 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 18:19:32,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 18:19:32,179 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 18:19:32,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 18:19:32,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 18:19:32,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 18:19:32,589 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 18:19:32,590 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 18:19:32,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum_array-1.c [2022-10-15 18:19:32,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ce84eb2f/ead7e4b2cadb45598c0868fd4d49c6de/FLAG0806686ab [2022-10-15 18:19:33,323 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 18:19:33,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-1.c [2022-10-15 18:19:33,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ce84eb2f/ead7e4b2cadb45598c0868fd4d49c6de/FLAG0806686ab [2022-10-15 18:19:33,671 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ce84eb2f/ead7e4b2cadb45598c0868fd4d49c6de [2022-10-15 18:19:33,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 18:19:33,684 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 18:19:33,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 18:19:33,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 18:19:33,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 18:19:33,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:33,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fd6f491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33, skipping insertion in model container [2022-10-15 18:19:33,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:33,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 18:19:33,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 18:19:33,869 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/sum_array-1.c[363,376] [2022-10-15 18:19:33,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 18:19:33,906 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 18:19:33,927 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/sum_array-1.c[363,376] [2022-10-15 18:19:33,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 18:19:33,976 INFO L208 MainTranslator]: Completed translation [2022-10-15 18:19:33,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33 WrapperNode [2022-10-15 18:19:33,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 18:19:33,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 18:19:33,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 18:19:33,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 18:19:33,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:34,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:34,050 INFO L138 Inliner]: procedures = 15, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2022-10-15 18:19:34,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 18:19:34,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 18:19:34,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 18:19:34,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 18:19:34,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:34,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:34,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:34,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:34,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:34,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:34,080 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:34,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:34,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 18:19:34,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 18:19:34,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 18:19:34,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 18:19:34,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33" (1/1) ... [2022-10-15 18:19:34,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 18:19:34,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 18:19:34,130 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) [2022-10-15 18:19:34,153 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 [2022-10-15 18:19:34,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 18:19:34,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 18:19:34,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 18:19:34,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 18:19:34,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 18:19:34,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 18:19:34,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 18:19:34,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 18:19:34,310 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 18:19:34,313 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 18:19:34,658 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 18:19:34,678 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 18:19:34,678 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-15 18:19:34,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:19:34 BoogieIcfgContainer [2022-10-15 18:19:34,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 18:19:34,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 18:19:34,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 18:19:34,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 18:19:34,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:19:33" (1/3) ... [2022-10-15 18:19:34,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb3c7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:19:34, skipping insertion in model container [2022-10-15 18:19:34,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:19:33" (2/3) ... [2022-10-15 18:19:34,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb3c7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:19:34, skipping insertion in model container [2022-10-15 18:19:34,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:19:34" (3/3) ... [2022-10-15 18:19:34,721 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array-1.c [2022-10-15 18:19:34,781 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 18:19:34,781 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-10-15 18:19:34,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 18:19:34,891 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;@648c97d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 18:19:34,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-10-15 18:19:34,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 49 states have internal predecessors, (58), 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) [2022-10-15 18:19:34,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 18:19:34,917 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 18:19:34,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 18:19:34,920 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)] === [2022-10-15 18:19:34,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 18:19:34,935 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-10-15 18:19:34,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 18:19:34,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617786500] [2022-10-15 18:19:34,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 18:19:34,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 18:19:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 18:19:35,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 18:19:35,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 18:19:35,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617786500] [2022-10-15 18:19:35,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617786500] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 18:19:35,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 18:19:35,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 18:19:35,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140841049] [2022-10-15 18:19:35,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 18:19:35,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 18:19:35,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 18:19:35,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 18:19:35,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 18:19:35,790 INFO L87 Difference]: Start difference. First operand has 50 states, 31 states have (on average 1.8709677419354838) internal successors, (58), 49 states have internal predecessors, (58), 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) [2022-10-15 18:19:35,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 18:19:35,862 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2022-10-15 18:19:35,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 18:19:35,865 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 [2022-10-15 18:19:35,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 18:19:35,880 INFO L225 Difference]: With dead ends: 47 [2022-10-15 18:19:35,880 INFO L226 Difference]: Without dead ends: 45 [2022-10-15 18:19:35,887 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 [2022-10-15 18:19:35,891 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 43 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 18:19:35,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 34 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 18:19:35,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-15 18:19:35,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-10-15 18:19:35,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.6) internal successors, (48), 44 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) [2022-10-15 18:19:35,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2022-10-15 18:19:35,934 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 4 [2022-10-15 18:19:35,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 18:19:35,935 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2022-10-15 18:19:35,935 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) [2022-10-15 18:19:35,936 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2022-10-15 18:19:35,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 18:19:35,936 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 18:19:35,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 18:19:35,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 18:19:35,937 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)] === [2022-10-15 18:19:35,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 18:19:35,938 INFO L85 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2022-10-15 18:19:35,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 18:19:35,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760493782] [2022-10-15 18:19:35,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 18:19:35,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 18:19:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 18:19:35,976 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 18:19:35,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 18:19:36,017 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 18:19:36,017 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 18:19:36,020 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2022-10-15 18:19:36,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2022-10-15 18:19:36,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2022-10-15 18:19:36,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2022-10-15 18:19:36,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2022-10-15 18:19:36,024 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2022-10-15 18:19:36,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2022-10-15 18:19:36,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2022-10-15 18:19:36,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 18 remaining) [2022-10-15 18:19:36,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 18 remaining) [2022-10-15 18:19:36,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2022-10-15 18:19:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2022-10-15 18:19:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2022-10-15 18:19:36,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2022-10-15 18:19:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2022-10-15 18:19:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2022-10-15 18:19:36,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (1 of 18 remaining) [2022-10-15 18:19:36,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK (0 of 18 remaining) [2022-10-15 18:19:36,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 18:19:36,034 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-15 18:19:36,040 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 18:19:36,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:19:36 BoogieIcfgContainer [2022-10-15 18:19:36,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 18:19:36,065 INFO L158 Benchmark]: Toolchain (without parser) took 2385.35ms. Allocated memory is still 151.0MB. Free memory was 125.7MB in the beginning and 85.6MB in the end (delta: 40.1MB). Peak memory consumption was 40.1MB. Max. memory is 8.0GB. [2022-10-15 18:19:36,066 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 151.0MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 18:19:36,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.60ms. Allocated memory is still 151.0MB. Free memory was 125.6MB in the beginning and 115.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 18:19:36,068 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.74ms. Allocated memory is still 151.0MB. Free memory was 115.4MB in the beginning and 113.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 18:19:36,068 INFO L158 Benchmark]: Boogie Preprocessor took 33.59ms. Allocated memory is still 151.0MB. Free memory was 113.7MB in the beginning and 112.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 18:19:36,069 INFO L158 Benchmark]: RCFGBuilder took 599.35ms. Allocated memory is still 151.0MB. Free memory was 112.3MB in the beginning and 131.2MB in the end (delta: -18.9MB). Peak memory consumption was 18.1MB. Max. memory is 8.0GB. [2022-10-15 18:19:36,070 INFO L158 Benchmark]: TraceAbstraction took 1351.94ms. Allocated memory is still 151.0MB. Free memory was 130.6MB in the beginning and 85.6MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2022-10-15 18:19:36,073 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 151.0MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 291.60ms. Allocated memory is still 151.0MB. Free memory was 125.6MB in the beginning and 115.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 70.74ms. Allocated memory is still 151.0MB. Free memory was 115.4MB in the beginning and 113.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.59ms. Allocated memory is still 151.0MB. Free memory was 113.7MB in the beginning and 112.3MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 599.35ms. Allocated memory is still 151.0MB. Free memory was 112.3MB in the beginning and 131.2MB in the end (delta: -18.9MB). Peak memory consumption was 18.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1351.94ms. Allocated memory is still 151.0MB. Free memory was 130.6MB in the beginning and 85.6MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. 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: [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}, i=0, M=4294967295] [L20] COND TRUE i