/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-fpi/ms4f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 16:19:31,713 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 16:19:31,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 16:19:31,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 16:19:31,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 16:19:31,753 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 16:19:31,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 16:19:31,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 16:19:31,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 16:19:31,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 16:19:31,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 16:19:31,793 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 16:19:31,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 16:19:31,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 16:19:31,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 16:19:31,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 16:19:31,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 16:19:31,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 16:19:31,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 16:19:31,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 16:19:31,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 16:19:31,823 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 16:19:31,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 16:19:31,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 16:19:31,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 16:19:31,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 16:19:31,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 16:19:31,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 16:19:31,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 16:19:31,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 16:19:31,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 16:19:31,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 16:19:31,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 16:19:31,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 16:19:31,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 16:19:31,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 16:19:31,852 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 16:19:31,904 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 16:19:31,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 16:19:31,904 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 16:19:31,905 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 16:19:31,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 16:19:31,906 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 16:19:31,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 16:19:31,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 16:19:31,907 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 16:19:31,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 16:19:31,907 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 16:19:31,908 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 16:19:31,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 16:19:31,908 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 16:19:31,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 16:19:31,908 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-15 16:19:31,909 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-15 16:19:31,909 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-15 16:19:31,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 16:19:31,909 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-10-15 16:19:31,909 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 16:19:31,910 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 16:19:31,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 16:19:31,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 16:19:31,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 16:19:31,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:19:31,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 16:19:31,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 16:19:31,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 16:19:31,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 16:19:31,911 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 16:19:32,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 16:19:32,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 16:19:32,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 16:19:32,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 16:19:32,350 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 16:19:32,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ms4f.c [2022-10-15 16:19:32,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f42f64a7/81a9efb44ec64e48abc21a27d690e0fb/FLAGc24421347 [2022-10-15 16:19:33,077 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 16:19:33,077 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ms4f.c [2022-10-15 16:19:33,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f42f64a7/81a9efb44ec64e48abc21a27d690e0fb/FLAGc24421347 [2022-10-15 16:19:33,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f42f64a7/81a9efb44ec64e48abc21a27d690e0fb [2022-10-15 16:19:33,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 16:19:33,452 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 16:19:33,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 16:19:33,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 16:19:33,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 16:19:33,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5310baee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33, skipping insertion in model container [2022-10-15 16:19:33,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 16:19:33,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 16:19:33,637 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-fpi/ms4f.c[587,600] [2022-10-15 16:19:33,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:19:33,669 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 16:19:33,684 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-fpi/ms4f.c[587,600] [2022-10-15 16:19:33,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 16:19:33,708 INFO L208 MainTranslator]: Completed translation [2022-10-15 16:19:33,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33 WrapperNode [2022-10-15 16:19:33,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 16:19:33,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 16:19:33,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 16:19:33,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 16:19:33,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,752 INFO L138 Inliner]: procedures = 17, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-10-15 16:19:33,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 16:19:33,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 16:19:33,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 16:19:33,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 16:19:33,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,780 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,781 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 16:19:33,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 16:19:33,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 16:19:33,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 16:19:33,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33" (1/1) ... [2022-10-15 16:19:33,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 16:19:33,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:19:33,827 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 16:19:33,854 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 16:19:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 16:19:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 16:19:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 16:19:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 16:19:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 16:19:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 16:19:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 16:19:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 16:19:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 16:19:34,037 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 16:19:34,040 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 16:19:34,358 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 16:19:34,366 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 16:19:34,366 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-15 16:19:34,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:19:34 BoogieIcfgContainer [2022-10-15 16:19:34,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 16:19:34,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 16:19:34,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 16:19:34,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 16:19:34,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 04:19:33" (1/3) ... [2022-10-15 16:19:34,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7caa88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:19:34, skipping insertion in model container [2022-10-15 16:19:34,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 04:19:33" (2/3) ... [2022-10-15 16:19:34,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7caa88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 04:19:34, skipping insertion in model container [2022-10-15 16:19:34,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 04:19:34" (3/3) ... [2022-10-15 16:19:34,385 INFO L112 eAbstractionObserver]: Analyzing ICFG ms4f.c [2022-10-15 16:19:34,412 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 16:19:34,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-10-15 16:19:34,484 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 16:19:34,493 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;@522ed5e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 16:19:34,494 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-10-15 16:19:34,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 24 states have (on average 1.9166666666666667) internal successors, (46), 38 states have internal predecessors, (46), 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 16:19:34,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 16:19:34,517 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:34,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 16:19:34,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:34,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:34,528 INFO L85 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2022-10-15 16:19:34,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:34,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481218037] [2022-10-15 16:19:34,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:34,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:34,842 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 16:19:34,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:34,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481218037] [2022-10-15 16:19:34,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481218037] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:19:34,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:19:34,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:19:34,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249306073] [2022-10-15 16:19:34,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:19:34,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:19:34,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:34,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:19:34,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:19:34,899 INFO L87 Difference]: Start difference. First operand has 39 states, 24 states have (on average 1.9166666666666667) internal successors, (46), 38 states have internal predecessors, (46), 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 16:19:34,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:34,977 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2022-10-15 16:19:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:19:34,980 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 16:19:34,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:34,989 INFO L225 Difference]: With dead ends: 40 [2022-10-15 16:19:34,990 INFO L226 Difference]: Without dead ends: 37 [2022-10-15 16:19:34,992 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 16:19:34,996 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 4 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:34,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 60 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:19:35,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-15 16:19:35,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-10-15 16:19:35,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 36 states have internal predecessors, (39), 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 16:19:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-10-15 16:19:35,036 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 4 [2022-10-15 16:19:35,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:35,037 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-10-15 16:19:35,037 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 16:19:35,037 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-10-15 16:19:35,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 16:19:35,038 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:35,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:35,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 16:19:35,039 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:35,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:35,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1806904936, now seen corresponding path program 1 times [2022-10-15 16:19:35,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:35,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664604229] [2022-10-15 16:19:35,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:35,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:35,175 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 16:19:35,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:35,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664604229] [2022-10-15 16:19:35,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664604229] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:19:35,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:19:35,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:19:35,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634525462] [2022-10-15 16:19:35,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:19:35,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:19:35,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:35,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:19:35,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:19:35,180 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 16:19:35,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:35,210 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-10-15 16:19:35,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:19:35,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-10-15 16:19:35,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:35,212 INFO L225 Difference]: With dead ends: 35 [2022-10-15 16:19:35,212 INFO L226 Difference]: Without dead ends: 35 [2022-10-15 16:19:35,213 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 16:19:35,215 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:35,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 26 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:19:35,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-15 16:19:35,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-10-15 16:19:35,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.608695652173913) internal successors, (37), 34 states have internal predecessors, (37), 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 16:19:35,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-10-15 16:19:35,222 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 7 [2022-10-15 16:19:35,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:35,222 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-10-15 16:19:35,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 16:19:35,223 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-10-15 16:19:35,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 16:19:35,223 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:35,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:35,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 16:19:35,224 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:35,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:35,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1806904937, now seen corresponding path program 1 times [2022-10-15 16:19:35,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:35,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260632548] [2022-10-15 16:19:35,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:35,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:35,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:35,494 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 16:19:35,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:35,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260632548] [2022-10-15 16:19:35,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260632548] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:19:35,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:19:35,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 16:19:35,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903451846] [2022-10-15 16:19:35,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:19:35,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 16:19:35,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:35,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 16:19:35,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:19:35,498 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 16:19:35,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:35,562 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2022-10-15 16:19:35,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 16:19:35,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 7 [2022-10-15 16:19:35,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:35,564 INFO L225 Difference]: With dead ends: 38 [2022-10-15 16:19:35,564 INFO L226 Difference]: Without dead ends: 38 [2022-10-15 16:19:35,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 16:19:35,567 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 36 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:35,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 41 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 16:19:35,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-15 16:19:35,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2022-10-15 16:19:35,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.56) internal successors, (39), 36 states have internal predecessors, (39), 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 16:19:35,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-10-15 16:19:35,575 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 7 [2022-10-15 16:19:35,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:35,575 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-10-15 16:19:35,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 16:19:35,576 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-10-15 16:19:35,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 16:19:35,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:35,577 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:35,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 16:19:35,577 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:35,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:35,578 INFO L85 PathProgramCache]: Analyzing trace with hash 679824471, now seen corresponding path program 1 times [2022-10-15 16:19:35,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:35,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963343029] [2022-10-15 16:19:35,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:35,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:35,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:19:35,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:35,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963343029] [2022-10-15 16:19:35,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963343029] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 16:19:35,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129426556] [2022-10-15 16:19:35,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:35,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:19:35,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 16:19:35,912 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 16:19:35,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 16:19:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:36,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 16:19:36,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 16:19:36,157 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-15 16:19:36,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-10-15 16:19:36,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:19:36,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 16:19:36,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:19:36,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129426556] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 16:19:36,512 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 16:19:36,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-10-15 16:19:36,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724956985] [2022-10-15 16:19:36,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 16:19:36,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 16:19:36,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:36,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 16:19:36,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-15 16:19:36,515 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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 16:19:36,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:36,729 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2022-10-15 16:19:36,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 16:19:36,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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 10 [2022-10-15 16:19:36,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:36,731 INFO L225 Difference]: With dead ends: 49 [2022-10-15 16:19:36,731 INFO L226 Difference]: Without dead ends: 49 [2022-10-15 16:19:36,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-10-15 16:19:36,734 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 65 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:36,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 62 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 16:19:36,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-10-15 16:19:36,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 36. [2022-10-15 16:19:36,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 35 states have internal predecessors, (38), 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 16:19:36,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2022-10-15 16:19:36,752 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 10 [2022-10-15 16:19:36,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:36,752 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2022-10-15 16:19:36,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 10 states have internal predecessors, (21), 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 16:19:36,753 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2022-10-15 16:19:36,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 16:19:36,753 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:36,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:36,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 16:19:36,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 16:19:36,959 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:36,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:36,962 INFO L85 PathProgramCache]: Analyzing trace with hash 476235034, now seen corresponding path program 1 times [2022-10-15 16:19:36,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:36,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269931101] [2022-10-15 16:19:36,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:36,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:37,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 16:19:37,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:37,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269931101] [2022-10-15 16:19:37,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269931101] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:19:37,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:19:37,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 16:19:37,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482934966] [2022-10-15 16:19:37,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:19:37,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 16:19:37,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:37,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 16:19:37,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 16:19:37,090 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 16:19:37,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:37,133 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2022-10-15 16:19:37,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 16:19:37,134 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12 [2022-10-15 16:19:37,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:37,135 INFO L225 Difference]: With dead ends: 39 [2022-10-15 16:19:37,135 INFO L226 Difference]: Without dead ends: 39 [2022-10-15 16:19:37,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 16:19:37,138 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 29 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:37,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 41 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:19:37,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-15 16:19:37,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2022-10-15 16:19:37,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 35 states have internal predecessors, (37), 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 16:19:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2022-10-15 16:19:37,147 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 12 [2022-10-15 16:19:37,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:37,147 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2022-10-15 16:19:37,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 16:19:37,148 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2022-10-15 16:19:37,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 16:19:37,149 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:37,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:37,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 16:19:37,150 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:37,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:37,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1878385450, now seen corresponding path program 1 times [2022-10-15 16:19:37,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:37,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619609468] [2022-10-15 16:19:37,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:37,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:37,291 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 16:19:37,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:37,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619609468] [2022-10-15 16:19:37,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619609468] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:19:37,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:19:37,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 16:19:37,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893144682] [2022-10-15 16:19:37,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:19:37,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 16:19:37,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:37,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 16:19:37,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 16:19:37,295 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 16:19:37,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:37,320 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-10-15 16:19:37,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:19:37,321 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2022-10-15 16:19:37,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:37,322 INFO L225 Difference]: With dead ends: 32 [2022-10-15 16:19:37,322 INFO L226 Difference]: Without dead ends: 32 [2022-10-15 16:19:37,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 16:19:37,324 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 41 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:37,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 22 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:19:37,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-15 16:19:37,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-10-15 16:19:37,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 31 states have internal predecessors, (33), 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 16:19:37,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-10-15 16:19:37,329 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 13 [2022-10-15 16:19:37,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:37,329 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-10-15 16:19:37,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 16:19:37,330 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-10-15 16:19:37,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 16:19:37,330 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:37,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:37,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 16:19:37,331 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:37,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:37,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1878385451, now seen corresponding path program 1 times [2022-10-15 16:19:37,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:37,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489061986] [2022-10-15 16:19:37,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:37,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 16:19:37,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 16:19:37,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 16:19:37,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489061986] [2022-10-15 16:19:37,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489061986] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 16:19:37,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 16:19:37,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 16:19:37,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665924178] [2022-10-15 16:19:37,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 16:19:37,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 16:19:37,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 16:19:37,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 16:19:37,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 16:19:37,487 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 16:19:37,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 16:19:37,516 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-10-15 16:19:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 16:19:37,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-10-15 16:19:37,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 16:19:37,527 INFO L225 Difference]: With dead ends: 28 [2022-10-15 16:19:37,527 INFO L226 Difference]: Without dead ends: 28 [2022-10-15 16:19:37,528 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 16:19:37,532 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 16:19:37,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 23 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 16:19:37,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-10-15 16:19:37,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-10-15 16:19:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 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 16:19:37,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-10-15 16:19:37,547 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 13 [2022-10-15 16:19:37,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 16:19:37,547 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-10-15 16:19:37,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 16:19:37,548 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-10-15 16:19:37,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 16:19:37,548 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 16:19:37,549 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:37,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 16:19:37,549 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 11 more)] === [2022-10-15 16:19:37,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 16:19:37,550 INFO L85 PathProgramCache]: Analyzing trace with hash -361490824, now seen corresponding path program 1 times [2022-10-15 16:19:37,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 16:19:37,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033409045] [2022-10-15 16:19:37,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 16:19:37,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 16:19:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:19:37,573 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 16:19:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 16:19:37,616 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 16:19:37,616 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 16:19:37,617 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK (13 of 14 remaining) [2022-10-15 16:19:37,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 14 remaining) [2022-10-15 16:19:37,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 14 remaining) [2022-10-15 16:19:37,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 14 remaining) [2022-10-15 16:19:37,620 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 14 remaining) [2022-10-15 16:19:37,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 14 remaining) [2022-10-15 16:19:37,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 14 remaining) [2022-10-15 16:19:37,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 14 remaining) [2022-10-15 16:19:37,621 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 14 remaining) [2022-10-15 16:19:37,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 14 remaining) [2022-10-15 16:19:37,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 14 remaining) [2022-10-15 16:19:37,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 14 remaining) [2022-10-15 16:19:37,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 14 remaining) [2022-10-15 16:19:37,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK (0 of 14 remaining) [2022-10-15 16:19:37,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 16:19:37,627 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 16:19:37,632 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 16:19:37,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 04:19:37 BoogieIcfgContainer [2022-10-15 16:19:37,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 16:19:37,665 INFO L158 Benchmark]: Toolchain (without parser) took 4218.42ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 130.0MB in the beginning and 94.4MB in the end (delta: 35.6MB). Peak memory consumption was 67.6MB. Max. memory is 8.0GB. [2022-10-15 16:19:37,666 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory was 125.4MB in the beginning and 125.3MB in the end (delta: 88.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 16:19:37,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.27ms. Allocated memory is still 155.2MB. Free memory was 129.8MB in the beginning and 119.7MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-10-15 16:19:37,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.81ms. Allocated memory is still 155.2MB. Free memory was 119.7MB in the beginning and 118.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-15 16:19:37,667 INFO L158 Benchmark]: Boogie Preprocessor took 30.03ms. Allocated memory is still 155.2MB. Free memory was 118.0MB in the beginning and 116.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-15 16:19:37,667 INFO L158 Benchmark]: RCFGBuilder took 584.53ms. Allocated memory is still 155.2MB. Free memory was 116.7MB in the beginning and 103.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-15 16:19:37,668 INFO L158 Benchmark]: TraceAbstraction took 3293.34ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 103.0MB in the beginning and 94.4MB in the end (delta: 8.6MB). Peak memory consumption was 40.4MB. Max. memory is 8.0GB. [2022-10-15 16:19:37,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory was 125.4MB in the beginning and 125.3MB in the end (delta: 88.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 251.27ms. Allocated memory is still 155.2MB. Free memory was 129.8MB in the beginning and 119.7MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 42.81ms. Allocated memory is still 155.2MB. Free memory was 119.7MB in the beginning and 118.0MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.03ms. Allocated memory is still 155.2MB. Free memory was 118.0MB in the beginning and 116.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 584.53ms. Allocated memory is still 155.2MB. Free memory was 116.7MB in the beginning and 103.7MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 3293.34ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 103.0MB in the beginning and 94.4MB in the end (delta: 8.6MB). Peak memory consumption was 40.4MB. 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: 15]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 15. Possible FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] i=0 VAL [a={-1:0}, i=0, N=1, sum={9:0}] [L31] COND TRUE i 3*N) [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, N=1] [L15] reach_error() VAL [\old(cond)=0, cond=0, N=1] - 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: 21]: 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 1 procedures, 39 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 217 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 217 mSDsluCounter, 275 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 95 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 222 IncrementalHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 180 mSDtfsCounter, 222 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 17 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 510 SizeOfPredicates, 3 NumberOfNonLiveVariables, 89 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 4/9 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 16:19:37,718 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...