/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/array-tiling/pnr4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:28:05,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:28:05,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:28:05,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:28:05,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:28:05,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:28:05,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:28:05,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:28:05,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:28:05,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:28:05,644 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:28:05,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:28:05,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:28:05,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:28:05,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:28:05,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:28:05,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:28:05,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:28:05,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:28:05,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:28:05,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:28:05,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:28:05,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:28:05,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:28:05,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 16:28:05,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 16:28:05,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 16:28:05,676 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 16:28:05,677 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 16:28:05,678 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 16:28:05,678 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 16:28:05,679 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 16:28:05,679 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 16:28:05,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:28:05,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:28:05,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:28:05,682 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 16:28:05,716 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:28:05,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:28:05,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:28:05,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:28:05,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:28:05,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:28:05,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:28:05,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:28:05,719 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:28:05,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:28:05,720 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:28:05,720 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:28:05,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:28:05,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:28:05,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:28:05,721 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:28:05,721 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:28:05,721 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:28:05,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:28:05,722 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:28:05,722 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:28:05,722 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:28:05,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:28:05,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:28:05,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:28:05,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:28:05,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:28:05,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:28:05,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:28:05,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:28:05,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:28:06,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:28:06,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:28:06,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:28:06,086 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:28:06,087 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:28:06,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-tiling/pnr4.c [2022-10-15 16:28:06,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d58e6cca/4a07ad5b5c644bd8af8faa1c86418adf/FLAG0f4bbdf1a [2022-10-15 16:28:06,863 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:28:06,864 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-tiling/pnr4.c [2022-10-15 16:28:06,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d58e6cca/4a07ad5b5c644bd8af8faa1c86418adf/FLAG0f4bbdf1a [2022-10-15 16:28:07,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d58e6cca/4a07ad5b5c644bd8af8faa1c86418adf [2022-10-15 16:28:07,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:28:07,222 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:28:07,225 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:28:07,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:28:07,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:28:07,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ecb71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07, skipping insertion in model container [2022-10-15 16:28:07,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:28:07,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:28:07,420 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/array-tiling/pnr4.c[395,408] [2022-10-15 16:28:07,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:28:07,480 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:28:07,502 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/array-tiling/pnr4.c[395,408] [2022-10-15 16:28:07,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:28:07,555 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:28:07,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07 WrapperNode [2022-10-15 16:28:07,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:28:07,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:28:07,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:28:07,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:28:07,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,652 INFO L138 Inliner]: procedures = 17, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2022-10-15 16:28:07,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:28:07,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:28:07,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:28:07,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:28:07,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,712 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:28:07,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:28:07,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:28:07,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:28:07,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07" (1/1) ... [2022-10-15 16:28:07,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:28:07,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:28:07,761 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 16:28:07,774 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 16:28:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:28:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:28:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 16:28:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 16:28:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2022-10-15 16:28:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2022-10-15 16:28:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:28:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:28:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 16:28:07,908 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:28:07,910 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:28:08,299 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:28:08,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:28:08,341 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-15 16:28:08,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:28:08 BoogieIcfgContainer [2022-10-15 16:28:08,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:28:08,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:28:08,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:28:08,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:28:08,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:28:07" (1/3) ... [2022-10-15 16:28:08,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316db52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:28:08, skipping insertion in model container [2022-10-15 16:28:08,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:28:07" (2/3) ... [2022-10-15 16:28:08,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316db52f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:28:08, skipping insertion in model container [2022-10-15 16:28:08,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:28:08" (3/3) ... [2022-10-15 16:28:08,371 INFO L112 eAbstractionObserver]: Analyzing ICFG pnr4.c [2022-10-15 16:28:08,418 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:28:08,418 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-15 16:28:08,513 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:28:08,525 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;@18ce0046, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:28:08,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-15 16:28:08,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 37 states have (on average 1.864864864864865) internal successors, (69), 57 states have internal predecessors, (69), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-15 16:28:08,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 16:28:08,557 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:28:08,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 16:28:08,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2022-10-15 16:28:08,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:28:08,565 INFO L85 PathProgramCache]: Analyzing trace with hash 30711604, now seen corresponding path program 1 times [2022-10-15 16:28:08,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:28:08,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994202128] [2022-10-15 16:28:08,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:08,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:28:08,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:28:08,783 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 16:28:08,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:28:08,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994202128] [2022-10-15 16:28:08,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994202128] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:28:08,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:28:08,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:28:08,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404846236] [2022-10-15 16:28:08,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:28:08,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:28:08,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:28:08,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:28:08,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:28:08,828 INFO L87 Difference]: Start difference. First operand has 63 states, 37 states have (on average 1.864864864864865) internal successors, (69), 57 states have internal predecessors, (69), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 16:28:08,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:28:08,907 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2022-10-15 16:28:08,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:28:08,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-10-15 16:28:08,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:28:08,923 INFO L225 Difference]: With dead ends: 65 [2022-10-15 16:28:08,924 INFO L226 Difference]: Without dead ends: 61 [2022-10-15 16:28:08,926 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 16:28:08,930 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 2 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:28:08,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 119 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:28:08,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-10-15 16:28:08,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-10-15 16:28:08,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 55 states have internal predecessors, (62), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-15 16:28:08,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2022-10-15 16:28:08,977 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 5 [2022-10-15 16:28:08,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:28:08,978 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2022-10-15 16:28:08,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 16:28:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2022-10-15 16:28:08,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 16:28:08,979 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:28:08,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 16:28:08,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:28:08,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 17 more)] === [2022-10-15 16:28:08,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:28:08,981 INFO L85 PathProgramCache]: Analyzing trace with hash 30602515, now seen corresponding path program 1 times [2022-10-15 16:28:08,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:28:08,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345409623] [2022-10-15 16:28:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:28:08,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:28:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:28:09,027 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 16:28:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:28:09,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 16:28:09,107 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 16:28:09,110 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK (19 of 20 remaining) [2022-10-15 16:28:09,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 20 remaining) [2022-10-15 16:28:09,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 20 remaining) [2022-10-15 16:28:09,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 20 remaining) [2022-10-15 16:28:09,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 20 remaining) [2022-10-15 16:28:09,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 20 remaining) [2022-10-15 16:28:09,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 20 remaining) [2022-10-15 16:28:09,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 20 remaining) [2022-10-15 16:28:09,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 20 remaining) [2022-10-15 16:28:09,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 20 remaining) [2022-10-15 16:28:09,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 20 remaining) [2022-10-15 16:28:09,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 20 remaining) [2022-10-15 16:28:09,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 20 remaining) [2022-10-15 16:28:09,128 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 20 remaining) [2022-10-15 16:28:09,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 20 remaining) [2022-10-15 16:28:09,129 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 20 remaining) [2022-10-15 16:28:09,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 20 remaining) [2022-10-15 16:28:09,130 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 20 remaining) [2022-10-15 16:28:09,132 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 20 remaining) [2022-10-15 16:28:09,133 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK (0 of 20 remaining) [2022-10-15 16:28:09,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 16:28:09,140 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-15 16:28:09,146 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:28:09,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:28:09 BoogieIcfgContainer [2022-10-15 16:28:09,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:28:09,188 INFO L158 Benchmark]: Toolchain (without parser) took 1966.19ms. Allocated memory is still 151.0MB. Free memory was 125.8MB in the beginning and 101.0MB in the end (delta: 24.8MB). Peak memory consumption was 25.0MB. Max. memory is 8.0GB. [2022-10-15 16:28:09,189 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory was 121.9MB in the beginning and 121.9MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:28:09,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.37ms. Allocated memory is still 151.0MB. Free memory was 125.6MB in the beginning and 114.5MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-15 16:28:09,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.47ms. Allocated memory is still 151.0MB. Free memory was 114.5MB in the beginning and 112.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 16:28:09,194 INFO L158 Benchmark]: Boogie Preprocessor took 65.23ms. Allocated memory is still 151.0MB. Free memory was 112.8MB in the beginning and 111.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:28:09,195 INFO L158 Benchmark]: RCFGBuilder took 627.37ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 130.4MB in the end (delta: -19.1MB). Peak memory consumption was 17.7MB. Max. memory is 8.0GB. [2022-10-15 16:28:09,196 INFO L158 Benchmark]: TraceAbstraction took 834.46ms. Allocated memory is still 151.0MB. Free memory was 129.9MB in the beginning and 101.0MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-10-15 16:28:09,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory was 121.9MB in the beginning and 121.9MB in the end (delta: 69.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 333.37ms. Allocated memory is still 151.0MB. Free memory was 125.6MB in the beginning and 114.5MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 93.47ms. Allocated memory is still 151.0MB. Free memory was 114.5MB in the beginning and 112.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 65.23ms. Allocated memory is still 151.0MB. Free memory was 112.8MB in the beginning and 111.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 627.37ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 130.4MB in the end (delta: -19.1MB). Peak memory consumption was 17.7MB. Max. memory is 8.0GB. * TraceAbstraction took 834.46ms. Allocated memory is still 151.0MB. Free memory was 129.9MB in the beginning and 101.0MB in the end (delta: 28.8MB). Peak memory consumption was 28.3MB. 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 - UnprovableResult [Line: 22]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 22. Possible FailurePath: [L18] int SIZE; [L20] const int MAX = 100000; VAL [MAX=100000, SIZE=0] [L24] SIZE = __VERIFIER_nondet_int() [L25] COND TRUE SIZE > 1 && SIZE < MAX [L27] int i; [L28] int value; [L29] int *a = malloc(sizeof(int)*SIZE); [L30] int DEFAULTVAL = 0; [L31] int FIXEDVAL = 10; VAL [a={-1:0}, DEFAULTVAL=0, FIXEDVAL=10, MAX=100000, SIZE=2] [L33] COND TRUE SIZE % 4 != 0 [L33] return 1; VAL [\result=1, a={-1:0}, DEFAULTVAL=0, FIXEDVAL=10, MAX=100000, SIZE=2] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 8]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 119 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 71 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-15 16:28:09,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...