/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-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig7-alloca.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:53:51,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:53:51,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:53:51,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:53:51,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:53:51,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:53:51,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:53:51,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:53:51,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:53:51,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:53:51,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:53:51,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:53:51,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:53:51,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:53:51,954 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:53:51,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:53:51,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:53:51,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:53:51,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:53:51,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:53:51,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:53:51,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:53:51,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:53:51,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:53:51,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 17:53:51,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:53:51,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:53:52,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:53:52,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:53:52,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:53:52,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:53:52,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:53:52,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:53:52,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:53:52,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:53:52,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:53:52,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:53:52,072 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:53:52,072 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:53:52,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:53:52,074 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:53:52,076 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:53:52,076 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:53:52,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:53:52,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:53:52,080 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:53:52,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:53:52,081 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:53:52,082 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:53:52,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:53:52,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:53:52,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:53:52,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:53:52,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:53:52,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:53:52,083 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:53:52,083 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:53:52,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:53:52,084 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:53:52,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:53:52,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:53:52,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:53:52,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:53:52,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:53:52,085 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:53:52,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:53:52,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:53:52,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:53:52,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:53:52,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:53:52,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:53:52,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:53:52,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:53:52,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:53:52,602 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:53:52,603 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:53:52,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig7-alloca.i [2022-10-16 17:53:52,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68436a08f/1a6857d082b3414abb311ba2b3a1dd0a/FLAG03e47e4df [2022-10-16 17:53:53,383 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:53:53,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/NoriSharma-2013FSE-Fig7-alloca.i [2022-10-16 17:53:53,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68436a08f/1a6857d082b3414abb311ba2b3a1dd0a/FLAG03e47e4df [2022-10-16 17:53:53,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68436a08f/1a6857d082b3414abb311ba2b3a1dd0a [2022-10-16 17:53:53,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:53:53,689 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:53:53,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:53:53,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:53:53,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:53:53,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:53:53" (1/1) ... [2022-10-16 17:53:53,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b245db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:53, skipping insertion in model container [2022-10-16 17:53:53,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:53:53" (1/1) ... [2022-10-16 17:53:53,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:53:53,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:53:54,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:53:54,058 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:53:54,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:53:54,192 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:53:54,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54 WrapperNode [2022-10-16 17:53:54,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:53:54,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:53:54,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:53:54,198 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:53:54,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54" (1/1) ... [2022-10-16 17:53:54,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54" (1/1) ... [2022-10-16 17:53:54,312 INFO L138 Inliner]: procedures = 109, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 76 [2022-10-16 17:53:54,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:53:54,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:53:54,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:53:54,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:53:54,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54" (1/1) ... [2022-10-16 17:53:54,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54" (1/1) ... [2022-10-16 17:53:54,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54" (1/1) ... [2022-10-16 17:53:54,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54" (1/1) ... [2022-10-16 17:53:54,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54" (1/1) ... [2022-10-16 17:53:54,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54" (1/1) ... [2022-10-16 17:53:54,367 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54" (1/1) ... [2022-10-16 17:53:54,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54" (1/1) ... [2022-10-16 17:53:54,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:53:54,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:53:54,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:53:54,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:53:54,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54" (1/1) ... [2022-10-16 17:53:54,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:53:54,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:53:54,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 17:53:54,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 17:53:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 17:53:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 17:53:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 17:53:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 17:53:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:53:54,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:53:54,702 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:53:54,705 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:53:54,973 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:53:54,981 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:53:54,981 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 17:53:54,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:53:54 BoogieIcfgContainer [2022-10-16 17:53:54,984 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:53:54,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:53:54,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:53:54,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:53:54,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:53:53" (1/3) ... [2022-10-16 17:53:54,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1175bb47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:53:54, skipping insertion in model container [2022-10-16 17:53:54,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:53:54" (2/3) ... [2022-10-16 17:53:54,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1175bb47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:53:54, skipping insertion in model container [2022-10-16 17:53:54,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:53:54" (3/3) ... [2022-10-16 17:53:54,995 INFO L112 eAbstractionObserver]: Analyzing ICFG NoriSharma-2013FSE-Fig7-alloca.i [2022-10-16 17:53:55,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:53:55,021 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 17:53:55,081 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:53:55,097 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@2ba8f0f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:53:55,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 17:53:55,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:53:55,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 17:53:55,136 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:53:55,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 17:53:55,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 17:53:55,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:53:55,150 INFO L85 PathProgramCache]: Analyzing trace with hash 889569447, now seen corresponding path program 1 times [2022-10-16 17:53:55,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:53:55,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694584292] [2022-10-16 17:53:55,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:53:55,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:53:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:53:55,429 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 17:53:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 17:53:55,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 17:53:55,551 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 17:53:55,554 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-10-16 17:53:55,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-10-16 17:53:55,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-10-16 17:53:55,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-10-16 17:53:55,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-10-16 17:53:55,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-10-16 17:53:55,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:53:55,566 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-10-16 17:53:55,573 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:53:55,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:53:55 BoogieIcfgContainer [2022-10-16 17:53:55,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:53:55,656 INFO L158 Benchmark]: Toolchain (without parser) took 1968.44ms. Allocated memory is still 151.0MB. Free memory was 129.5MB in the beginning and 97.7MB in the end (delta: 31.9MB). Peak memory consumption was 30.0MB. Max. memory is 8.0GB. [2022-10-16 17:53:55,657 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 151.0MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:53:55,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.63ms. Allocated memory is still 151.0MB. Free memory was 129.3MB in the beginning and 114.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-10-16 17:53:55,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.22ms. Allocated memory is still 151.0MB. Free memory was 114.3MB in the beginning and 132.7MB in the end (delta: -18.4MB). Peak memory consumption was 3.8MB. Max. memory is 8.0GB. [2022-10-16 17:53:55,667 INFO L158 Benchmark]: Boogie Preprocessor took 66.02ms. Allocated memory is still 151.0MB. Free memory was 132.7MB in the beginning and 131.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 17:53:55,668 INFO L158 Benchmark]: RCFGBuilder took 604.03ms. Allocated memory is still 151.0MB. Free memory was 131.2MB in the beginning and 117.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 17:53:55,670 INFO L158 Benchmark]: TraceAbstraction took 665.40ms. Allocated memory is still 151.0MB. Free memory was 116.6MB in the beginning and 97.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-10-16 17:53:55,678 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 151.0MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 504.63ms. Allocated memory is still 151.0MB. Free memory was 129.3MB in the beginning and 114.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 116.22ms. Allocated memory is still 151.0MB. Free memory was 114.3MB in the beginning and 132.7MB in the end (delta: -18.4MB). Peak memory consumption was 3.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.02ms. Allocated memory is still 151.0MB. Free memory was 132.7MB in the beginning and 131.2MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 604.03ms. Allocated memory is still 151.0MB. Free memory was 131.2MB in the beginning and 117.6MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 665.40ms. Allocated memory is still 151.0MB. Free memory was 116.6MB in the beginning and 97.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 558]: integer overflow possible integer overflow possible We found a FailurePath: [L547] int* a = __builtin_alloca (sizeof(int)); [L548] int* i = __builtin_alloca (sizeof(int)); [L549] int* b = __builtin_alloca (sizeof(int)); [L550] int* j = __builtin_alloca (sizeof(int)); [L551] int* c = __builtin_alloca (sizeof(int)); [L552] int* M = __builtin_alloca (sizeof(int)); [L553] int* N = __builtin_alloca (sizeof(int)); [L554] EXPR \read(*i) [L554] *a = *i [L555] EXPR \read(*j) [L555] *b = *j [L556] *c = 0 VAL [__builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={8:0}, a={8:0}, b={2:0}, c={6:0}, i={9:0}, j={7:0}, M={5:0}, N={3:0}] [L557] EXPR \read(*i) [L557] EXPR \read(*M) [L557] *i < *M || *j < *N VAL [*i < *M || *j < *N=1, \read(*i)=2147483647, \read(*M)=2147483648, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={8:0}, a={8:0}, b={2:0}, c={6:0}, i={9:0}, j={7:0}, M={5:0}, N={3:0}] [L557] COND TRUE *i < *M || *j < *N [L558] EXPR \read(*i) VAL [\read(*i)=2147483647, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={8:0}, a={8:0}, b={2:0}, c={6:0}, i={9:0}, j={7:0}, M={5:0}, N={3:0}] [L558] *i + 1 VAL [\read(*i)=2147483647, __builtin_alloca (sizeof(int))={5:0}, __builtin_alloca (sizeof(int))={2:0}, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={7:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={9:0}, __builtin_alloca (sizeof(int))={8:0}, a={8:0}, b={2:0}, c={6:0}, i={9:0}, j={7:0}, M={5:0}, N={3:0}] - UnprovableResult [Line: 558]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect! [2022-10-16 17:53:55,737 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...